Wireless mesh networks (WMNs) are attractive as a new communication paradigm. Ad hoc routing protocols for WMNs are classified into: (1) proactive, (2) reactive, and (3) hybrid approaches. In general, proactive routing is more suitable for a stationary network, while reactive routing is better for a mobile network with a high mobility. In many applications, a node in WMN is mobile but it can fluctuate between being mobile. Wireless mesh networks is an emergent research area, which is becoming important due to the growing amount of nodes in a network.
Abstract— A MANETs is a self-configuring network is a collection of mobile hosts that are connected via a wireless link. Opportunistic data forwarding has drawn much attention in the research community of multihop wireless networks. Opportunistic data forwarding is the lack of an efficient, lightweight proactive routing scheme with strong source routing capability. In this project proposed to a lightweight proactive source routing (PSR) protocol. PSR can be maintained at different network topology information than distance vector (DV), link state (LS), optimized link State routing (OLSR), then reactive source routing [e.g., dynamic source routing (DSR)]. In this project concentrate on reducing the overhead at the base line protocols, then testing to the better data transportation. Network Simulator (NS-2) help in testing and implementing to this project for effectively reduced to the overhead in the data transportation.
ANALYSIS OF PROACTIVE AND REACTIVE MANET ROUTING PROTOCOLS UNDER SELECTED TCP...ijasuc
This document analyzes the performance of two reactive MANET routing protocols, DSR and DSDV, under TCP Vegas and TCP Newreno variants through simulations. The simulations measured packet delivery ratio, average end-to-end delay, and total packets dropped. The results showed that DSDV generally had a higher packet delivery ratio but also higher end-to-end delay and more packet drops compared to DSR. DSR performed better in terms of delay and drops due to its on-demand route discovery, while DSDV maintained more consistent routes leading to better packet delivery.
Tree Based Proactive Source Routing Protocol for MANETspaperpublications3
bstract: A mobile adhoc network (MANET) is a wireless communication network and the node that does not lie within the direct transmission range of each other depends on the intermediate nodes to forward data. Opportunistic data forwarding has not been widely utilized in mobile adhoc networks (MANETs) and the main reason is the lack of an efficient lightweight proactive routing scheme with strong source routing capability. PSR protocol facilitates opportunistic data forwarding in MANETs. In PSR, each node maintains a breadth-first search spanning tree of the network rooted at it-self. This information is periodically exchanged among neighboring nodes for updated network topology information. Here added a Mobile sink to reduce the overhead in case of number of child node increases and also to reduce the delay.
This document summarizes a research paper that examines the performance of three mobile ad hoc network (MANET) routing protocols: AODV, DSR, and DSDV. Through network simulations varying the number of nodes and connections, the paper evaluates the routing protocols based on average end-to-end delay, normalized routing load, packet delivery fraction, and throughput. The simulation results show that AODV generally has better performance than DSR and DSDV in terms of lower delay, higher packet delivery, and better throughput, especially as the network size increases. However, DSDV maintains more consistent performance than the reactive protocols as network conditions change.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
A SURVEY OF ENHANCED ROUTING PROTOCOLS FOR MANETspijans
This document summarizes and surveys several enhanced routing protocols that have been developed for mobile ad hoc networks (MANETs). It begins by providing background on routing challenges in MANETs and classifications of routing protocols. It then describes several traditional and widely used routing protocols, including DSDV, OLSR, TORA, DSR, and AODV. The document focuses on summarizing several new routing protocols that have been proposed to improve upon existing protocols. It discusses protocols such as BAWB-DSR, CCSR, RAMP, AODV-SBA, CBRP-R, and CBTRP - noting techniques, advantages, and disadvantages of each. The overall purpose is to review
PERFORMANCE EVALUATION ON EXTENDED ROUTING PROTOCOL OF AODV IN MANETijasuc
This document summarizes and compares two extended versions of the AODV routing protocol for mobile ad hoc networks (MANETs): Reverse AODV (RAODV) and Multicast AODV (MAODV). RAODV aims to improve routing performance by allowing multiple route reply messages, while MAODV allows nodes to send multicast data packets through a multicast group tree. The document outlines the key features and operations of each protocol, including route discovery processes. It then evaluates and compares the performance of RAODV and MAODV using metrics like end-to-end delay and overhead while varying the number of nodes.
MANET Routing Protocols , a case studyRehan Hattab
L. Yi, Y. Zhai, Y. Wang, J. Yuan and I. You , Impacts of Internal Network Contexts on Performance of MANET Routing Protocols: a Case Study, Sixth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing,2012.
Abstract— A MANETs is a self-configuring network is a collection of mobile hosts that are connected via a wireless link. Opportunistic data forwarding has drawn much attention in the research community of multihop wireless networks. Opportunistic data forwarding is the lack of an efficient, lightweight proactive routing scheme with strong source routing capability. In this project proposed to a lightweight proactive source routing (PSR) protocol. PSR can be maintained at different network topology information than distance vector (DV), link state (LS), optimized link State routing (OLSR), then reactive source routing [e.g., dynamic source routing (DSR)]. In this project concentrate on reducing the overhead at the base line protocols, then testing to the better data transportation. Network Simulator (NS-2) help in testing and implementing to this project for effectively reduced to the overhead in the data transportation.
ANALYSIS OF PROACTIVE AND REACTIVE MANET ROUTING PROTOCOLS UNDER SELECTED TCP...ijasuc
This document analyzes the performance of two reactive MANET routing protocols, DSR and DSDV, under TCP Vegas and TCP Newreno variants through simulations. The simulations measured packet delivery ratio, average end-to-end delay, and total packets dropped. The results showed that DSDV generally had a higher packet delivery ratio but also higher end-to-end delay and more packet drops compared to DSR. DSR performed better in terms of delay and drops due to its on-demand route discovery, while DSDV maintained more consistent routes leading to better packet delivery.
Tree Based Proactive Source Routing Protocol for MANETspaperpublications3
bstract: A mobile adhoc network (MANET) is a wireless communication network and the node that does not lie within the direct transmission range of each other depends on the intermediate nodes to forward data. Opportunistic data forwarding has not been widely utilized in mobile adhoc networks (MANETs) and the main reason is the lack of an efficient lightweight proactive routing scheme with strong source routing capability. PSR protocol facilitates opportunistic data forwarding in MANETs. In PSR, each node maintains a breadth-first search spanning tree of the network rooted at it-self. This information is periodically exchanged among neighboring nodes for updated network topology information. Here added a Mobile sink to reduce the overhead in case of number of child node increases and also to reduce the delay.
This document summarizes a research paper that examines the performance of three mobile ad hoc network (MANET) routing protocols: AODV, DSR, and DSDV. Through network simulations varying the number of nodes and connections, the paper evaluates the routing protocols based on average end-to-end delay, normalized routing load, packet delivery fraction, and throughput. The simulation results show that AODV generally has better performance than DSR and DSDV in terms of lower delay, higher packet delivery, and better throughput, especially as the network size increases. However, DSDV maintains more consistent performance than the reactive protocols as network conditions change.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
A SURVEY OF ENHANCED ROUTING PROTOCOLS FOR MANETspijans
This document summarizes and surveys several enhanced routing protocols that have been developed for mobile ad hoc networks (MANETs). It begins by providing background on routing challenges in MANETs and classifications of routing protocols. It then describes several traditional and widely used routing protocols, including DSDV, OLSR, TORA, DSR, and AODV. The document focuses on summarizing several new routing protocols that have been proposed to improve upon existing protocols. It discusses protocols such as BAWB-DSR, CCSR, RAMP, AODV-SBA, CBRP-R, and CBTRP - noting techniques, advantages, and disadvantages of each. The overall purpose is to review
PERFORMANCE EVALUATION ON EXTENDED ROUTING PROTOCOL OF AODV IN MANETijasuc
This document summarizes and compares two extended versions of the AODV routing protocol for mobile ad hoc networks (MANETs): Reverse AODV (RAODV) and Multicast AODV (MAODV). RAODV aims to improve routing performance by allowing multiple route reply messages, while MAODV allows nodes to send multicast data packets through a multicast group tree. The document outlines the key features and operations of each protocol, including route discovery processes. It then evaluates and compares the performance of RAODV and MAODV using metrics like end-to-end delay and overhead while varying the number of nodes.
MANET Routing Protocols , a case studyRehan Hattab
L. Yi, Y. Zhai, Y. Wang, J. Yuan and I. You , Impacts of Internal Network Contexts on Performance of MANET Routing Protocols: a Case Study, Sixth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing,2012.
Comparing: Routing Protocols on Basis of sleep modeIJMER
The architecture of ad hoc wireless network consists of mobile nodes for communication
without the use of fixed-position routers. The communication between them takes place without
centralized control. Routing is a very crucial issue, so to deal with this routing algorithms must deliver
the packet in significant delay. There are different protocols for handling the mobile environment like
AODV, DSR and OLSR. But this paper will focus on performance of AODV and OLSR routing protocols.
The performance of these protocols is analyzed on two metrics: time and throughput
PERFORMANCE ANALYSIS OF OLSR PROTOCOL IN MANET CONSIDERING DIFFERENT MOBILITY...ijwmn
A Mobile Ad Hoc Network (MANET) is created when an independent mobile node network is connected
dynamically via wireless links. MANET is a self-organizing network that does not rely on pre-existing
infrastructure such as wired or wireless network routers. Mobile nodes in this network move randomly,
thus, the topology is always changing. Routing protocols in MANET are critical in ensuring dependable
and consistent connectivity between the mobile nodes. They conclude logically based on the interaction
between mobile nodes in MANET routing and encourage them to choose the optimum path between source
and destination. Routing protocols are classified as proactive, reactive, or hybrid. The focus of this project
will be on Optimized Link State Routing (OLSR) protocol, a proactive routing technique. OLSR is known as
the optimized variant of link state routing in which packets are sent throughout the network using the
multipoint relay (MPR) mechanism. This article evaluates the performance of the OLSR routing protocol
under condition of changing mobility speed and network density. The study's performance indicators are
average packet throughput, packet delivery ratio (PDR), and average packet latency. Network Simulator 2
(NS-2) and an external patch UM-OLSR are used to simulate and evaluate the performance of such
protocol. As a result of research, the approach of implementing the MPR mechanism are able to minimise
redundant data transmission during the normal message broadcast. The MPRs enhance the link state
protocols’ traditional diffusion mechanism by selecting the right MPRs. Hence, the number of undesired
broadcasts can be reduced and limited. Further research will focus on different scenario and environment
using different mobility model
The document provides an overview of routing protocols for mobile ad hoc networks (MANETs). It discusses that MANETs are self-configuring networks without centralized control where nodes can act as routers to forward packets. The document classifies routing protocols as proactive (table-driven), reactive (on-demand), or hybrid. It describes examples of proactive routing protocols like DSDV, OLSR, and WRP that maintain up-to-date routing tables and share updates periodically or when changes occur. The document also discusses reactive protocols establish routes on demand and hybrid protocols that combine aspects of proactive and reactive approaches.
A review of current routing protocols for ad hoc mobile wireless networksPriyanka Gurnani
This document reviews and compares 8 different routing protocols for ad hoc mobile wireless networks. It first divides routing protocols into two categories: table-driven protocols that aim to maintain consistent and up-to-date routing information between all nodes, and source-initiated on-demand protocols that only create routes when needed. It then describes 4 table-driven protocols - DSDV, WRP, CGSR, and GSR - and 4 on-demand protocols - AODV, DSR, LMR, and ABR. Finally, it qualitatively compares the protocols based on characteristics like routing overhead, packet delivery ratio, and scalability.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
This document analyzes the effect of node density on different routing protocols under FTP and HTTP applications. It simulates scenarios with varying node densities (20-130 nodes) using routing protocols AODV, DSR, GRP and OLSR. Key quality of service (QoS) metrics - throughput, delay, network load and packet delivery ratio - are evaluated and compared. The results show that OLSR generally performs best in terms of throughput and delay for both FTP and HTTP applications. GRP performs best for network load, while AODV has the highest packet delivery ratio for FTP. In conclusion, OLSR is the best overall routing protocol for supporting FTP and HTTP applications in mobile ad-hoc networks according to
A Survey of Various Routing and Channel Assignment Strategies for MR-MC WMNsijsrd.com
One fundamental problem of WMNs with a limited number of radio interfaces and orthogonal channels is that the performance degrades significantly as the network size grows. This results from increased interference between nodes and diminished spatial reuse over the network. A WMN node needs to share a common channel with each of its neighbours in the communication range, requiring it to set up a virtual link. Moreover, to reduce network interference, a node should minimize the number of neighbours that it shares a common channel with. The objective of a channel assignment strategy is to ensure efficient utilization of the available channels (e.g., by minimizing interference) while maximizing connectivity in the network. However, since these two requirements are conflicting with each other, the goal is to achieve a balance between these two. The major constraints which need to be satisfied by a channel assignment scheme include fixed number of channels in the network, limited number of radios in mesh nodes, common channel between two communicating nodes, and limited channel capacity. Also, a channel assignment scheme should take the amount of traffic load supported by each mesh node into consideration.
Comparatively analysis of AODV and DSR in MAC layer for Ad Hoc Environmentijsrd.com
In Wireless Adhoc Network is a group of wireless mobile nodes is an autonomous system of mobile nodes connected by wireless links. Every node operates as an end system and as a router to forward packets. In this paper mainly focused on Mac layer because this layer is most important for the data communication using control the packet loss and we worked on the comparison based performance of wimax802.16 and wireless802.11 networks using Ad hoc on- demand Distance Vector Routing Protocol and Dynamic Source Routing Protocol. In this paper we used the different maximum speed for the network. And this comparison based on unicast On-demand routing procedure and our simulation for mobile ad hoc networks discover and maintain only needed the design and follows the idea that each node by sending routing packets whenever a communication is requested and compared various parameter packet delivery ratio, normalized routing load and e-e delay. These simulations are carried out using the Network simulator version-2. The results presented in this work illustrate the importance in carefully evaluating and implementing routing protocols in an ad hoc environment.
OVERVIEW AND LITERATURE SURVEY ON ROUTING PROTOCOLS FOR MOBILE COGNITIVE RADI...cscpconf
Ad hoc network is a collection of wireless mobile nodes that dynamically form a temporary
network without the use of any existing network infrastructure or centralized administration. A
cognitive radio is a radio that can change its transmitter parameters based on interaction with
the environment in which it operates. The basic idea of cognitive radio networks is that the
unlicensed devices (cognitive radio users or secondary users) need to vacate the spectrum band
once the licensed device (primary user) is detected. Cognitive capability and reconfigurability
are the key characteristics of cognitive radio. Routing is an important issue in Mobile
Cognitive Radio Ad Hoc Networks (MCRAHNs). In this paper, a survey of routing protocols for
mobile cognitive radio ad networks is discussed.
1.a distributed three hop routing protocol to increase theyasinalimohammed
The document presents a Distributed Three-hop Routing (DTR) protocol for hybrid wireless networks that incorporates features of both mobile ad-hoc and infrastructure wireless networks. DTR aims to improve throughput capacity and scalability by dividing a data stream into segments and transmitting them in a distributed manner across multiple base stations using both ad-hoc and cellular interfaces. It limits routing paths to three hops to reduce overhead. Theoretical analysis and simulation results show that DTR outperforms other routing protocols in terms of throughput, scalability, and mobility resilience with only minimal overhead.
This document analyzes and compares the scalability of three mobile ad hoc network (MANET) routing protocols - AODV, TORA, and OLSR - by simulating them using varying numbers of nodes. The key findings are:
1) In terms of end-to-end delay, OLSR consistently performs better than AODV and TORA as the number of nodes increases from 25 to 75.
2) For throughput, OLSR outperforms AODV and TORA across all network sizes tested.
3) The study concludes that OLSR demonstrates better scalability than AODV and TORA based on its performance with increasing numbers of nodes in terms of
Improved routing scheme with ACO in WSN in comparison to DSDVijsrd.com
Routing is the process of selecting best paths in a network in terms of energy and distance. In adhoc it is critical to collect the information in an efficient manner as it has limitations in terms of centralized congestion. In such case to perform the effective communication there is the requirement of some such routing approach that can provide the routing with optimized path. In this work, ACO based routing approach is defined to generate the optimized path in comparison to DSDV over the network. The presented approach is implemented in matlab environment and obtained results shows the effective results in terms of optimized path.
Performance Analysis of Ad-hoc on Demand Distance Vector Routing (AODV) and D...ijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
IJCER (www.ijceronline.com) International Journal of computational Engineerin...ijceronline
This document summarizes a research paper that evaluates the performance of two routing protocols (AODV and DSDV) under different traffic patterns (TCP and CBR) in a mobile ad hoc network (MANET) simulation. The paper describes MANET characteristics and challenges for routing. It provides an overview of reactive (AODV), proactive (DSDV), and hybrid routing protocols. It also defines TCP and CBR traffic patterns. The research aims to analyze and compare the packet delivery ratio and end-to-end delay of AODV and DSDV under different traffic loads using the NS-2 simulator. Preliminary results show that reactive protocols perform better in terms of these metrics.
Performance Comparison of IAODV and OLSR Protocols under Black Hole Attackijsrd.com
A wireless ad-hoc network is a collection of mobile/semi-mobile nodes with no pre-established infrastructure, forming a temporary network.. MANET is a self organized and self configurable network where the mobile nodes move arbitrarily. The mobile nodes can receive and forward packets as a router. Each of the nodes has a wireless interface and communicates with each other over either radio or infrared. Laptop computers and personal digital assistants that communicate directly with each other are some examples of nodes in an ad-hoc network [4]. Nodes in the adhoc network are often mobile, but can also consist of stationary nodes, such as access points to the Internet. Semi mobile nodes can be used to deploy relay points in areas where relay points might be needed temporarily. Routing is a critical issue in MANET and hence the focus of this thesis along with the performance analysis of routing protocols. We compared two routing protocols i.e. IAODV and OLSR. Our simulation tool will be Network stimulator 2. The performance of these routing protocols is analyzed by three metrics: End to End delay, Packet delivery fraction and throughput.
The document evaluates the performance of 5 routing protocols (AODV, DSR, TORA, OLSR, GRP) in a mobile ad hoc network (MANET) using the OPNET simulator. Simulations were run with 30, 60, and 90 nodes using email and video conferencing applications. Performance was analyzed based on throughput, delay, load, and data dropped. In general, GRP and OLSR had the lowest delay, DSR and GRP had the lowest load, and OLSR and AODV had the highest throughput, while TORA often had the worst performance based on the metrics. The evaluation provides insights into the relative performance of the routing protocols under different conditions in a MANET
This document provides an overview of routing protocols in ad hoc networks. It begins with an abstract describing the objectives of surveying and comparing different classes of ad hoc routing protocols. The document then outlines the topics to be covered, including the characteristics, applications, and types of ad hoc routing protocols. Several representative routing protocols are described in detail, including table-driven, hybrid, source-initiated, location-aware, multipath, hierarchical, multicast, and power-aware protocols. The document concludes by discussing future work related to improving reusability and security of ad hoc routing protocols.
BETTER SCALABLE ROUTING PROTOCOL FOR HYBRID WIRELESS MESH NETWORKcscpconf
There are many routing approaches have been borrowed from mobile ad hoc network to achieve routing solutions in wireless mesh network. WMN was developed for reliable data communication and load balancing. AODV provides loop-free routes even while repairing broken links. This paper have been proposed an improved hierarchical AODV routing protocol
(IH-AODV), which exhibits better scalability and performance in the network. This IH-AODV protocol has been proposed for improvement in the scaling potential of AODV. MAODV allows
each node in the network to send out multicast data packets, used for multicast traffic. The wireless mesh network architecture provides reduction in installation cost, large scale
deployment, reliability and self management. It is mainly focused on implementing military or specialized civilian applications. Two protocols MAODV and IH-AODV were simulated using NS2 package. Simulation results will demonstrate that, IH-AODV scales well for large network
and other metrics are also better than or comparable to MAODV in hybrid WMNs.
T HE I MPACT OF TCP C ONGESTION W INDOW S IZE ON THE P ERFORMANCE E VA...ijwmn
A mobile ad hoc network (MANET) is a temporary coll
ection of mobile nodes randomly moved within a
limited terrain area. The nodes are connected to fo
rm a wireless network without use any communication
infrastructure. Because of the limiting resources o
f MANET nodes, multiple hops
scheme is proposed for
data exchange
across the network. Varieties of mobile ad hoc rout
ing protocols have been developed to
support the multi-hop scheme of ad hoc networks. A
popular Transmission Control Protocol (TCP)
provides a reliable connection in a computer networ
k environment; it sets its congestion window size i
n
response to the behavior of the network to achieve
the best performance. This work aims to investigate
and
compare the MANET protocol
performance, such as DSDV, AODV and DSR in terms of
network
throughput, average routing load, the packet delive
ry ratio (PDR), and average end-to-end delay by
varying the maximum congestion window size. Our si
mulation has been implemented using a well-known
NS-2.35 network simulator. The simulated results sh
ow that the demonstrates of the concepts of MANET
routing protocols with respect to TCP congestion wi
ndow size in MANET environment
PERFORMANCE COMPARISION OF DSDV, AODV AND DSRFOR MOBILE AD HOC NETWORK BY VAR...Saurabh Mishra
This document compares the performance of three routing protocols - DSDV, AODV, and DSR - for mobile ad hoc networks by simulating networks of varying sizes using the Qualnet simulator. The main findings are that AODV performed most efficiently for network sizes of 30, 40, and 50 nodes, and that performance decreased for all three protocols as the number of nodes increased. For a network of 50 nodes, the three protocols exhibited different performance levels at different node counts.
प्र. क 1 माहिती संप्रेषण तंत्रज्ञानाचे सामर्थ्यISMAIL KHAN
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Comparing: Routing Protocols on Basis of sleep modeIJMER
The architecture of ad hoc wireless network consists of mobile nodes for communication
without the use of fixed-position routers. The communication between them takes place without
centralized control. Routing is a very crucial issue, so to deal with this routing algorithms must deliver
the packet in significant delay. There are different protocols for handling the mobile environment like
AODV, DSR and OLSR. But this paper will focus on performance of AODV and OLSR routing protocols.
The performance of these protocols is analyzed on two metrics: time and throughput
PERFORMANCE ANALYSIS OF OLSR PROTOCOL IN MANET CONSIDERING DIFFERENT MOBILITY...ijwmn
A Mobile Ad Hoc Network (MANET) is created when an independent mobile node network is connected
dynamically via wireless links. MANET is a self-organizing network that does not rely on pre-existing
infrastructure such as wired or wireless network routers. Mobile nodes in this network move randomly,
thus, the topology is always changing. Routing protocols in MANET are critical in ensuring dependable
and consistent connectivity between the mobile nodes. They conclude logically based on the interaction
between mobile nodes in MANET routing and encourage them to choose the optimum path between source
and destination. Routing protocols are classified as proactive, reactive, or hybrid. The focus of this project
will be on Optimized Link State Routing (OLSR) protocol, a proactive routing technique. OLSR is known as
the optimized variant of link state routing in which packets are sent throughout the network using the
multipoint relay (MPR) mechanism. This article evaluates the performance of the OLSR routing protocol
under condition of changing mobility speed and network density. The study's performance indicators are
average packet throughput, packet delivery ratio (PDR), and average packet latency. Network Simulator 2
(NS-2) and an external patch UM-OLSR are used to simulate and evaluate the performance of such
protocol. As a result of research, the approach of implementing the MPR mechanism are able to minimise
redundant data transmission during the normal message broadcast. The MPRs enhance the link state
protocols’ traditional diffusion mechanism by selecting the right MPRs. Hence, the number of undesired
broadcasts can be reduced and limited. Further research will focus on different scenario and environment
using different mobility model
The document provides an overview of routing protocols for mobile ad hoc networks (MANETs). It discusses that MANETs are self-configuring networks without centralized control where nodes can act as routers to forward packets. The document classifies routing protocols as proactive (table-driven), reactive (on-demand), or hybrid. It describes examples of proactive routing protocols like DSDV, OLSR, and WRP that maintain up-to-date routing tables and share updates periodically or when changes occur. The document also discusses reactive protocols establish routes on demand and hybrid protocols that combine aspects of proactive and reactive approaches.
A review of current routing protocols for ad hoc mobile wireless networksPriyanka Gurnani
This document reviews and compares 8 different routing protocols for ad hoc mobile wireless networks. It first divides routing protocols into two categories: table-driven protocols that aim to maintain consistent and up-to-date routing information between all nodes, and source-initiated on-demand protocols that only create routes when needed. It then describes 4 table-driven protocols - DSDV, WRP, CGSR, and GSR - and 4 on-demand protocols - AODV, DSR, LMR, and ABR. Finally, it qualitatively compares the protocols based on characteristics like routing overhead, packet delivery ratio, and scalability.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
This document analyzes the effect of node density on different routing protocols under FTP and HTTP applications. It simulates scenarios with varying node densities (20-130 nodes) using routing protocols AODV, DSR, GRP and OLSR. Key quality of service (QoS) metrics - throughput, delay, network load and packet delivery ratio - are evaluated and compared. The results show that OLSR generally performs best in terms of throughput and delay for both FTP and HTTP applications. GRP performs best for network load, while AODV has the highest packet delivery ratio for FTP. In conclusion, OLSR is the best overall routing protocol for supporting FTP and HTTP applications in mobile ad-hoc networks according to
A Survey of Various Routing and Channel Assignment Strategies for MR-MC WMNsijsrd.com
One fundamental problem of WMNs with a limited number of radio interfaces and orthogonal channels is that the performance degrades significantly as the network size grows. This results from increased interference between nodes and diminished spatial reuse over the network. A WMN node needs to share a common channel with each of its neighbours in the communication range, requiring it to set up a virtual link. Moreover, to reduce network interference, a node should minimize the number of neighbours that it shares a common channel with. The objective of a channel assignment strategy is to ensure efficient utilization of the available channels (e.g., by minimizing interference) while maximizing connectivity in the network. However, since these two requirements are conflicting with each other, the goal is to achieve a balance between these two. The major constraints which need to be satisfied by a channel assignment scheme include fixed number of channels in the network, limited number of radios in mesh nodes, common channel between two communicating nodes, and limited channel capacity. Also, a channel assignment scheme should take the amount of traffic load supported by each mesh node into consideration.
Comparatively analysis of AODV and DSR in MAC layer for Ad Hoc Environmentijsrd.com
In Wireless Adhoc Network is a group of wireless mobile nodes is an autonomous system of mobile nodes connected by wireless links. Every node operates as an end system and as a router to forward packets. In this paper mainly focused on Mac layer because this layer is most important for the data communication using control the packet loss and we worked on the comparison based performance of wimax802.16 and wireless802.11 networks using Ad hoc on- demand Distance Vector Routing Protocol and Dynamic Source Routing Protocol. In this paper we used the different maximum speed for the network. And this comparison based on unicast On-demand routing procedure and our simulation for mobile ad hoc networks discover and maintain only needed the design and follows the idea that each node by sending routing packets whenever a communication is requested and compared various parameter packet delivery ratio, normalized routing load and e-e delay. These simulations are carried out using the Network simulator version-2. The results presented in this work illustrate the importance in carefully evaluating and implementing routing protocols in an ad hoc environment.
OVERVIEW AND LITERATURE SURVEY ON ROUTING PROTOCOLS FOR MOBILE COGNITIVE RADI...cscpconf
Ad hoc network is a collection of wireless mobile nodes that dynamically form a temporary
network without the use of any existing network infrastructure or centralized administration. A
cognitive radio is a radio that can change its transmitter parameters based on interaction with
the environment in which it operates. The basic idea of cognitive radio networks is that the
unlicensed devices (cognitive radio users or secondary users) need to vacate the spectrum band
once the licensed device (primary user) is detected. Cognitive capability and reconfigurability
are the key characteristics of cognitive radio. Routing is an important issue in Mobile
Cognitive Radio Ad Hoc Networks (MCRAHNs). In this paper, a survey of routing protocols for
mobile cognitive radio ad networks is discussed.
1.a distributed three hop routing protocol to increase theyasinalimohammed
The document presents a Distributed Three-hop Routing (DTR) protocol for hybrid wireless networks that incorporates features of both mobile ad-hoc and infrastructure wireless networks. DTR aims to improve throughput capacity and scalability by dividing a data stream into segments and transmitting them in a distributed manner across multiple base stations using both ad-hoc and cellular interfaces. It limits routing paths to three hops to reduce overhead. Theoretical analysis and simulation results show that DTR outperforms other routing protocols in terms of throughput, scalability, and mobility resilience with only minimal overhead.
This document analyzes and compares the scalability of three mobile ad hoc network (MANET) routing protocols - AODV, TORA, and OLSR - by simulating them using varying numbers of nodes. The key findings are:
1) In terms of end-to-end delay, OLSR consistently performs better than AODV and TORA as the number of nodes increases from 25 to 75.
2) For throughput, OLSR outperforms AODV and TORA across all network sizes tested.
3) The study concludes that OLSR demonstrates better scalability than AODV and TORA based on its performance with increasing numbers of nodes in terms of
Improved routing scheme with ACO in WSN in comparison to DSDVijsrd.com
Routing is the process of selecting best paths in a network in terms of energy and distance. In adhoc it is critical to collect the information in an efficient manner as it has limitations in terms of centralized congestion. In such case to perform the effective communication there is the requirement of some such routing approach that can provide the routing with optimized path. In this work, ACO based routing approach is defined to generate the optimized path in comparison to DSDV over the network. The presented approach is implemented in matlab environment and obtained results shows the effective results in terms of optimized path.
Performance Analysis of Ad-hoc on Demand Distance Vector Routing (AODV) and D...ijceronline
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
IJCER (www.ijceronline.com) International Journal of computational Engineerin...ijceronline
This document summarizes a research paper that evaluates the performance of two routing protocols (AODV and DSDV) under different traffic patterns (TCP and CBR) in a mobile ad hoc network (MANET) simulation. The paper describes MANET characteristics and challenges for routing. It provides an overview of reactive (AODV), proactive (DSDV), and hybrid routing protocols. It also defines TCP and CBR traffic patterns. The research aims to analyze and compare the packet delivery ratio and end-to-end delay of AODV and DSDV under different traffic loads using the NS-2 simulator. Preliminary results show that reactive protocols perform better in terms of these metrics.
Performance Comparison of IAODV and OLSR Protocols under Black Hole Attackijsrd.com
A wireless ad-hoc network is a collection of mobile/semi-mobile nodes with no pre-established infrastructure, forming a temporary network.. MANET is a self organized and self configurable network where the mobile nodes move arbitrarily. The mobile nodes can receive and forward packets as a router. Each of the nodes has a wireless interface and communicates with each other over either radio or infrared. Laptop computers and personal digital assistants that communicate directly with each other are some examples of nodes in an ad-hoc network [4]. Nodes in the adhoc network are often mobile, but can also consist of stationary nodes, such as access points to the Internet. Semi mobile nodes can be used to deploy relay points in areas where relay points might be needed temporarily. Routing is a critical issue in MANET and hence the focus of this thesis along with the performance analysis of routing protocols. We compared two routing protocols i.e. IAODV and OLSR. Our simulation tool will be Network stimulator 2. The performance of these routing protocols is analyzed by three metrics: End to End delay, Packet delivery fraction and throughput.
The document evaluates the performance of 5 routing protocols (AODV, DSR, TORA, OLSR, GRP) in a mobile ad hoc network (MANET) using the OPNET simulator. Simulations were run with 30, 60, and 90 nodes using email and video conferencing applications. Performance was analyzed based on throughput, delay, load, and data dropped. In general, GRP and OLSR had the lowest delay, DSR and GRP had the lowest load, and OLSR and AODV had the highest throughput, while TORA often had the worst performance based on the metrics. The evaluation provides insights into the relative performance of the routing protocols under different conditions in a MANET
This document provides an overview of routing protocols in ad hoc networks. It begins with an abstract describing the objectives of surveying and comparing different classes of ad hoc routing protocols. The document then outlines the topics to be covered, including the characteristics, applications, and types of ad hoc routing protocols. Several representative routing protocols are described in detail, including table-driven, hybrid, source-initiated, location-aware, multipath, hierarchical, multicast, and power-aware protocols. The document concludes by discussing future work related to improving reusability and security of ad hoc routing protocols.
BETTER SCALABLE ROUTING PROTOCOL FOR HYBRID WIRELESS MESH NETWORKcscpconf
There are many routing approaches have been borrowed from mobile ad hoc network to achieve routing solutions in wireless mesh network. WMN was developed for reliable data communication and load balancing. AODV provides loop-free routes even while repairing broken links. This paper have been proposed an improved hierarchical AODV routing protocol
(IH-AODV), which exhibits better scalability and performance in the network. This IH-AODV protocol has been proposed for improvement in the scaling potential of AODV. MAODV allows
each node in the network to send out multicast data packets, used for multicast traffic. The wireless mesh network architecture provides reduction in installation cost, large scale
deployment, reliability and self management. It is mainly focused on implementing military or specialized civilian applications. Two protocols MAODV and IH-AODV were simulated using NS2 package. Simulation results will demonstrate that, IH-AODV scales well for large network
and other metrics are also better than or comparable to MAODV in hybrid WMNs.
T HE I MPACT OF TCP C ONGESTION W INDOW S IZE ON THE P ERFORMANCE E VA...ijwmn
A mobile ad hoc network (MANET) is a temporary coll
ection of mobile nodes randomly moved within a
limited terrain area. The nodes are connected to fo
rm a wireless network without use any communication
infrastructure. Because of the limiting resources o
f MANET nodes, multiple hops
scheme is proposed for
data exchange
across the network. Varieties of mobile ad hoc rout
ing protocols have been developed to
support the multi-hop scheme of ad hoc networks. A
popular Transmission Control Protocol (TCP)
provides a reliable connection in a computer networ
k environment; it sets its congestion window size i
n
response to the behavior of the network to achieve
the best performance. This work aims to investigate
and
compare the MANET protocol
performance, such as DSDV, AODV and DSR in terms of
network
throughput, average routing load, the packet delive
ry ratio (PDR), and average end-to-end delay by
varying the maximum congestion window size. Our si
mulation has been implemented using a well-known
NS-2.35 network simulator. The simulated results sh
ow that the demonstrates of the concepts of MANET
routing protocols with respect to TCP congestion wi
ndow size in MANET environment
PERFORMANCE COMPARISION OF DSDV, AODV AND DSRFOR MOBILE AD HOC NETWORK BY VAR...Saurabh Mishra
This document compares the performance of three routing protocols - DSDV, AODV, and DSR - for mobile ad hoc networks by simulating networks of varying sizes using the Qualnet simulator. The main findings are that AODV performed most efficiently for network sizes of 30, 40, and 50 nodes, and that performance decreased for all three protocols as the number of nodes increased. For a network of 50 nodes, the three protocols exhibited different performance levels at different node counts.
प्र. क 1 माहिती संप्रेषण तंत्रज्ञानाचे सामर्थ्यISMAIL KHAN
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Sony Rajesh has over 20 years of experience in financial services and customer support roles. He currently works as a Senior Analyst and Reviewer at Northern Operating Services Ltd, where his responsibilities include allocating work, quality checks, resolving queries, and ensuring service level agreements are met. Previously he worked at Karvy Stock Broking Ltd as a Dealer and Back Office Executive, and at Networth Stock Broking Ltd in similar roles. He also has experience working in customer relations and support at PepsiCo India Holdings Private Ltd. Sony Rajesh has the necessary qualifications and seeks a new opportunity where he can apply his skills and experience.
This document provides instructions for replacing a user's existing Windows 8.1 computer with a new one using the USMT backup and restore process. It details backing up the user's files, settings and applications from their current computer to a network location using the Sanlam Group USMT Backup tool. It then describes performing a fresh Windows 8.1 installation on the new computer and migrating the user's backed up data to it using the USMT restore process, completing the replacement of the user's existing computer.
The document introduces the Bartle Test of Gamer Psychology, which identifies four types of gamers: Achievers, who enjoy overcoming challenges and leveling up; Explorers, who like discovering hidden areas and learning how to interact with and "hack" games; Socialisers, who primarily play to interact and meet other players; and Killers, who thrive on competition and prefer fighting other players over computer opponents. The document encourages taking the Bartle Test to determine which type of gamer someone is.
Minimarte Crowdfunding ( the presentation for crowdfunding )Ricardo Graça
A apresentação descreve uma série de animação sobre uma colônia humana em Marte, incluindo tópicos como a proposta da série, episódios concluídos e próximos, justificativa para captação de recursos e contrapartidas oferecidas para doadores.
The Difference between Aggressive and Defensive PortfoliosDavid Osio
David Osio explica que hay dos tipos comunes de carteras de inversión: agresivas y defensivas. Las carteras agresivas incluyen acciones de alto riesgo que podrían generar altos rendimientos, como acciones de empresas nuevas con potencial de crecimiento rápido. Por el contrario, las carteras defensivas contienen acciones de empresas estables que no se ven tan afectadas por los movimientos del mercado, lo que las hace más seguras pero con menores ganancias potenciales.
Ημερίδα:
Μη επανδρωμένα Εναέρια Συστήματα
Γεωπολιτικές, Τεχνολογικές, Νομικές διαστάσεις της χρήσης τους
Παραδείγματα drones μη στρατιωτικής χρήσης
Αθήνα 25 Νοεμβρίου 2015
Αμφιθέατρο, Πολεμικό Μουσείο Αθηνών
By
Dr. Marinos Papadopoulos
Attorney-at-Law JD, MSc, PhD/JSD
A Survey of Enhanced Routing Protocols for Manetspijans
Mobile Ad Hoc Networks (MANETs) form a class of dynamic multi-hop networks consisting of a set of
mobile nodes that intercommunicate on shared wireless channels. MANETs are self-organizing and selfconfiguring multi-hop wireless networks, where the network structure changes dynamically due to the node
mobility. There exists no fixed topology due to the mobility of nodes, interference, multipath propagation
and path loss. Hence efficient dynamic routing protocols are required for these networks to function
properly. Many routing protocols have been developed to accomplish this task. In this paper we survey
various new routing protocols that have been developed as extensions or advanced versions of previously
existing routing protocols for MANETs such as DSR, AODV, OLSR etc.
This document analyzes and compares different routing protocols for mobile ad hoc networks (MANETs). It begins with background on MANETs and their characteristics, such as dynamic topology and limited resources. It then classifies routing protocols as either proactive (table-driven) or reactive (on-demand) and describes several examples of each type. Proactive protocols maintain up-to-date routing tables through periodic updates but incur more overhead. Reactive protocols discover routes on demand but add latency. The document provides details on popular protocols like DSDV, AODV, DSR and TORA, explaining their route discovery, maintenance and metrics.
International Journal of Engineering Research and DevelopmentIJERD Editor
This document analyzes and compares different routing protocols for mobile ad hoc networks (MANETs). It begins with background on MANETs and their characteristics. It then classifies routing protocols into proactive (table-driven) and reactive (on-demand) categories. For each category, several representative protocols are described in detail, including DSDV, WRP, CGSR, DSR, AODV, ABR, SSA, and TORA. Their routing mechanisms and approaches to route discovery and maintenance are outlined. The document aims to provide an overview of major MANET routing protocols to help determine the most suitable ones for different network conditions.
The document provides an overview of routing protocols for mobile ad hoc networks (MANETs). It discusses the characteristics of MANETs and challenges in routing. It classifies routing protocols into three categories: proactive, reactive, and hybrid. Proactive protocols continuously maintain up-to-date routing information through periodic updates. Reactive protocols find routes on demand via route discovery. Hybrid protocols incorporate aspects of both proactive and reactive routing. Examples of protocols from each category are described and compared, including DSDV, AODV, DSR, ZRP, and CEDAR. The document concludes routing in MANET is an active area of research with the goal of protocols responding rapidly to topological changes.
Mobile ad hoc network is a reconfigurable network of mobile nodes connected by multi-hop wireless links and capable of operating without any fixed infrastructure support. In order to facilitate communication within such self-creating, self-organizing and self administrating network, a dynamic routing protocol is needed. The primary goal of such an ad hoc network routing protocol is to discover and establish a correct and efficient route between a pair of nodes so that messages may be delivered in a timely manner. Route construction should be done with a minimum of overhead and bandwidth consumption. This paper examines two routing protocols, both on-demand source routing, for mobile ad hoc networks– the Dynamic Source Routing (DSR), an flat architecture based and the Cluster Based Routing Protocol (CBRP), a cluster architecture based and evaluates both routing protocols in terms of packet delivery fraction, normalized routing load, average end to end delay, throughput by varying number of nodes per sq. km, traffic sources and mobility. Simulation results show that in high
mobility (pause time 0s) scenarios, CBRP outperforms DSR. CBRP scales well with increasing number of nodes.
This document discusses wireless sensor network protocols. It covers multi-hop routing, where sensor nodes act as relays to propagate data to the base station. Common routing protocols are discussed, including reactive protocols like AODV that establish routes on demand and proactive protocols like DSDV that maintain routing tables with periodic updates. MAC protocols help manage access to the shared wireless medium and examples covered include S-MAC and B-MAC. The OSI model layers and responsibilities are also summarized.
Issues in designing a routing and Transport Layer protocol for Ad hoc networks- proactive
routing, reactive routing (on-demand), hybrid routing- Classification of Transport Layer
solutions-TCP over Ad hoc wireless Networks
ENHANCEMENT OF OPTIMIZED LINKED STATE ROUTING PROTOCOL FOR ENERGY CONSERVATIONcscpconf
Mobile Ad-hoc network (MANET) is infrastructure less network in which nodes are mobile, self
reconfigurable, battery powered. As nodes in MANET are battery powered, energy saving is an
important issue. We are using routing protocol to save energy so as to extend network lifetime.
We have extended original Optimized Linked State Routing (OLSR) protocol by using two
algorithms and named it as Enhancement in OLSR using Residual Energy approach (EOLSRRE)
and Enhancement in OLSR using Energy Consumption approach (EOLSR-EC). To analyze
relative performance of modified protocol EOLSR-RE and EOLSR-EC over OLSR, we
performed various trials using Qualnet simulator. The performance of these routing protocols is
analyzed in terms of energy consumption, control overheads, end to end delay, packet delivery
ratio. The modified OLSR protocol improves energy efficiency of network by reducing 20 %
energy consumption and 50% control overheads.
Performance Analysis of Mobile Adhoc Network Routing Protocols Over Tcppijans
In order to reduce the communication cost and time we are looking forward for successful implementation
of an infrastructure less network like Mobile Ad Hoc Network in all arena of wireless mobile
communication. But still it is a challenge to decide a most appropriate routing protocol for MANET. In
MANET there is no fixed topology due to the mobility of nodes, interference, multipath propagation and
path loss. Since MANET does not use fixed infrastructure rather it always have to find suitable router and
routing path for each communication, existing established routing protocol is not suitable for MANET to
function properly. Different Routing protocols have been proposed to meet the challenges with MANETs.
This paper evaluates the performances of four MANET routing protocols which are DSDV, AODV, DSR
and TORA over TCP, a Transport Layer Protocol. The performance metrics which are considered in this
paper are packet delivery fractions, normalized routing overload, end to end delay and throughput. DSDV
is a proactive protocol and the others are reactive protocols.
International Journal of Engineering Inventions (IJEI) provides a multidisciplinary passage for researchers, managers, professionals, practitioners and students around the globe to publish high quality, peer-reviewed articles on all theoretical and empirical aspects of Engineering and Science.
The document provides an overview of routing protocols in mobile ad-hoc networks (MANETs) and enhancements to reactive protocols. It discusses the key features of MANETs and challenges like security. It describes different routing strategies including proactive, reactive, and hybrid protocols. It provides details on reactive protocols like DSR and AODV. It focuses on enhancements to DSR including the watchdog and pathrater mechanisms to detect misbehaving nodes and select more reliable routes. The document is a technical paper that evaluates routing protocols and security issues in MANETs.
Survey of Reactive Routing Protocols for MANETIOSR Journals
Abstract : A MANET is a collection of mobile nodes by wireless links forming a dynamic topology without any network infrastructure such as routers, servers, access points/cables or centralized administration. The nodes are free to move about and organize themselves into a network. These nodes change position frequently. The main classes of routing protocols are Proactive, Reactive and Hybrid. A Reactive (on-demand) routing strategy is a popular routing category for wireless ad hoc routing. It is a relatively new routing philosophy that provides a scalable solution to relatively large network topologies. The design follows the idea that each node tries to reduce routing overhead by sending routing packets whenever a communication is requested. DSR and AODV are reactive route discovery algorithms where a mobile device of MANET connects by gateway only when it is needed. The performance differentials are analyzed using varying performance metrics. These simulations are carried out using the ns-2 network simulator. Keywords – AODV, DSR, MANET, NS-2, Reactive routing protocols, Survey.
Survey of Reactive Routing Protocols for MANETIOSR Journals
A MANET is a collection of mobile nodes by wireless links forming a dynamic topology without any
network infrastructure such as routers, servers, access points/cables or centralized administration. The nodes
are free to move about and organize themselves into a network. These nodes change position frequently. The
main classes of routing protocols are Proactive, Reactive and Hybrid. A Reactive (on-demand) routing strategy
is a popular routing category for wireless ad hoc routing. It is a relatively new routing philosophy that provides
a scalable solution to relatively large network topologies. The design follows the idea that each node tries to
reduce routing overhead by sending routing packets whenever a communication is requested. DSR and AODV
are reactive route discovery algorithms where a mobile device of MANET connects by gateway only when it is
needed. The performance differentials are analyzed using varying performance metrics. These simulations are
carried out using the ns-2 network simulator
Wireless networking allows users to access information from any geographic location. This document discusses several routing protocols for wireless ad-hoc networks, where nodes can connect dynamically in an arbitrary manner. It describes protocols like DSDV, AODV, TORA, DSR, and introduces a new protocol called Fisheye Routing, which uses a table-driven approach with variable updating rates to reduce overhead. Performance analysis showed Fisheye Routing provides accurate routing with low control overhead in mobile environments.
Performance study of adhoc routing protocols for cbr trafficeSAT Journals
Abstract Mobile ad hoc network (MANET) is a dynamic network without fixed infrastructure due to their wireless nature and can be deployed as multi-hop packet networks. The nodes are free to move about and organize themselves into a network. These nodes change position frequently. A Reactive (on-demand) routing strategy is a popular routing category for wireless adhoc routing. The primary objective of this paper is to do comparative study of the performance of routing protocols Destination-Sequenced Distance-Vector (DSDV), Dynamic Source Routing (DSR) and Ad-hoc on demand Distance Vector (AODV) for wireless ad hoc networks in a simulated environment against varying network parameters. The evaluations are done by means of simulations using NS-2 network simulator. The study was done on the basis of performance metrics: throughput, packet delivery function, end-to-end delay, routing overhead and packet lost. Simulation results show that despite in most simulations reactive routing protocols DSR and AODV performed significantly better than proactive routing protocol DSDV for the CBR based traffic. Keywords- component; Mobile Adhoc Network, Routing protocol, DSR, AODV, DSDV
Survey comparison estimation of various routing protocols in mobile ad hoc ne...ijdpsjournal
This document summarizes and compares various routing protocols for mobile ad-hoc networks (MANETs). It first describes the characteristics and challenges of MANETs. It then classifies routing protocols for MANETs into three main categories: table-driven (proactive), on-demand (reactive), and hybrid protocols. Examples of protocols from each category are described in detail, including DSDV, AODV, DSR, and ZRP. Key features such as route discovery, table maintenance, and use of proactive and reactive approaches are discussed for each example protocol. Finally, the document compares different protocols based on parameters like scalability, latency, bandwidth overhead, and mobility impact.
Survey comparison estimation of various routing protocols in mobile ad hoc ne...ijdpsjournal
MANET is
an autonomous system of mobile nodes attached by wireless links. It represents
a complex and
dynamic distributed systems that consist of mobile wireless nodes that can freely self organize into
an ad
-
hoc network topology. The devices in the network may hav
e limited transmission
range therefore multiple
hops may be needed by one node to transfer data to another node in network. This leads to the need f
or an
effective routing protocol. In this paper we study various classifications of routing protocols and
th
eir types
for wireless mobile ad
-
hoc networks like DSDV, GSR, AODV, DSR, ZRP, FSR, CGSR, LAR, and Geocast
Protocols. In this paper we also compare different routing proto
cols on based on a given set of
parameters
Scalability, Latency, Bandwidth, Control
-
ov
erhead, Mobility impact
International Journal of Research in Engineering and Science is an open access peer-reviewed international forum for scientists involved in research to publish quality and refereed papers. Papers reporting original research or experimentally proved review work are welcome. Papers for publication are selected through peer review to ensure originality, relevance, and readability.
A New Theoretical Approach to Location Based Power Aware RoutingIOSR Journals
This document proposes a new theoretical approach to location based power aware routing in mobile ad hoc networks (MANETs). It aims to extend the network lifetime by improving power utilization during routing. The approach uses nodes' location information, remaining battery power, and bandwidth status to assign link stability and select routes with lower "uptime values" and minimum bandwidth over time. This is hypothesized to better utilize nodes' power sources and bandwidth. The document outlines calculating a root up time factor for each node based on its power backup and required power, and only using nodes with maximum backup. It concludes future work will design and validate a new protocol based on this approach.
This document summarizes and compares three routing protocols for mobile ad hoc networks (MANETs): AODV, DSR, and DSDV. It describes that MANETs are infrastructureless wireless networks without centralized administration. Routing in MANETs is complex due to frequent changes in network topology as nodes move. The document then provides an overview of AODV as a reactive routing protocol that establishes routes on demand, DSR as another reactive source-initiated protocol using source routing, and DSDV as a proactive table-driven protocol that maintains routing tables. It notes that AODV routing messages require little processing to minimize overhead and allows quick reaction to link breaks.
Similar to Study of Attacks and Routing Protocol in Wireless Network (20)
Due to availability of internet and evolution of embedded devices, Internet of things can be useful to contribute in energy domain. The Internet of Things (IoT) will deliver a smarter grid to enable more information and connectivity throughout the infrastructure and to homes. Through the IoT, consumers, manufacturers and utility providers will come across new ways to manage devices and ultimately conserve resources and save money by using smart meters, home gateways, smart plugs and connected appliances. The future smart home, various devices will be able to measure and share their energy consumption, and actively participate in house-wide or building wide energy management systems. This paper discusses the different approaches being taken worldwide to connect the smart grid. Full system solutions can be developed by combining hardware and software to address some of the challenges in building a smarter and more connected smart grid.
A Survey Report on : Security & Challenges in Internet of Thingsijsrd.com
In the era of computing technology, Internet of Things (IoT) devices are now popular in each and every domains like e-governance, e-Health, e-Home, e-Commerce, and e-Trafficking etc. Iot is spreading from small to large applications in all fields like Smart Cities, Smart Grids, Smart Transportation. As on one side IoT provide facilities and services for the society. On the other hand, IoT security is also a crucial issues.IoT security is an area which totally concerned for giving security to connected devices and networks in the IoT .As, IoT is vast area with usability, performance, security, and reliability as a major challenges in it. The growth of the IoT is exponentially increases as driven by market pressures, which proportionally increases the security threats involved in IoT The relationship between the security and billions of devices connecting to the Internet cannot be described with existing mathematical methods. In this paper, we explore the opportunities possible in the IoT with security threats and challenges associated with it.
In today’s emerging world of Internet, each and every thing is supposed to be in connected mode with the help of billions of smart devices. By connecting all the devises used in our day to day life, make our life trouble less and easy. We are incorporated in a world where we are used to have smart phones, smart cars, smart gadgets, smart homes and smart cities. Different institutes and researchers are working for creating a smart world for us but real question which we need to emphasis on is how to make dumb devises talk with uncommon hardware and communication technology. For the same what kind of mechanism to use with various protocols and less human interaction. The purpose is to provide the key area for application of IoT and a platform on which various devices having different mechanism and protocols can communicate with an integrated architecture.
Study on Issues in Managing and Protecting Data of IOTijsrd.com
This paper discusses variety of issues for preserving and managing data produced by IoT. Every second large amount of data are added or updated in the IoT databases across the heterogeneous environment. While managing the data each phase of data processing for IoT data is exigent like storing data, querying, indexing, transaction management and failure handling. We also refer to the problem of data integration and protection as data requires to be fit in single layout and travel securely as they arrive in the pool from diversified sources in different structure. Finally, we confer a standardized pathway to manage and to defend data in consistent manner.
Interactive Technologies for Improving Quality of Education to Build Collabor...ijsrd.com
Today with advancement in Information Communication Technology (ICT) the way the education is being delivered is seeing a paradigm shift from boring classroom lectures to interactive applications such as 2-D and 3-D learning content, animations, live videos, response systems, interactive panels, education games, virtual laboratories and collaborative research (data gathering and analysis) etc. Engineering is emerging with more innovative solutions in the field of education and bringing out their innovative products to improve education delivery. The academic institutes which were once hesitant to use such technology are now looking forward to such innovations. They are adopting the new ways as they are realizing the vast benefits of using such methods and technology. The benefits are better comprehensibility, improved learning efficiency of students, and access to vast knowledge resources, geographical reach, quick feedback, accountability and quality research. This paper focuses on how engineering can leverage the latest technology and build a collaborative learning environment which can then be integrated with the national e-learning grid.
Internet of Things - Paradigm Shift of Future Internet Application for Specia...ijsrd.com
In the world more than 15% people are living with disability that also include children below age of 10 years. Due to lack of independent support services specially abled (handicap) people overly rely on other people for their basic needs, that excludes them from being financially and socially active. The Internet of Things (IoT) can give support system and a better quality of life as well as participation in routine and day to day life. For this purpose, the future solutions for current problems has been introduced in this paper. Daunting challenges have been considered as future research and glimpse of the IoT for specially abled person is given in the paper.
A Study of the Adverse Effects of IoT on Student's Lifeijsrd.com
Internet of things (IoT) is the most powerful invention and if used in the positive direction, internet can prove to be very productive. But, now a days, due to the social networking sites such as Face book, WhatsApp, twitter, hike etc. internet is producing adverse effects on the student life, especially those students studying at college Level. As it is rightly said, something which has some positive effects also has some of the negative effects on the other hand. In this article, we are discussing some adverse effects of IoT on student’s life.
Pedagogy for Effective use of ICT in English Language Learningijsrd.com
The use of information and communications technology (ICT) in education is a relatively new phenomenon and it has been the educational researchers' focus of attention for more than two decades. Educators and researchers examine the challenges of using ICT and think of new ways to integrate ICT into the curriculum. However, there are some barriers for the teachers that prevent them to use ICT in the classroom and develop supporting materials through ICT. The purpose of this study is to examine the high school English teachers’ perceptions of the factors discouraging teachers to use ICT in the classroom.
In recent years usage of private vehicles create urban traffic more and more crowded. As result traffic becomes one of the important problems in big cities in all over the world. Some of the traffic concerns are traffic jam and accidents which have caused a huge waste of time, more fuel consumption and more pollution. Time is very important parameter in routine life. The main problem faced by the people is real time routing. Our solution Virtual Eye will provide the current updates as in the real time scenario of the specific route. This research paper presents smart traffic navigation system, based on Internet of Things, which is featured by low cost, high compatibility, easy to upgrade, to replace traditional traffic management system and the proposed system can improve road traffic tremendously.
Ontological Model of Educational Programs in Computer Science (Bachelor and M...ijsrd.com
In this work there is illustrated an ontological model of educational programs in computer science for bachelor and master degrees in Computer science and for master educational program “Computer science as second competence†by Tempus project PROMIS.
Understanding IoT Management for Smart Refrigeratorijsrd.com
1) The document discusses a proposed design for an intelligent refrigerator that leverages sensor technology and wireless communication to identify food items and order more through an internet connection when supplies are low.
2) Key aspects of the proposal include using RFID to uniquely identify each food item, storing item and usage data in an XML database, monitoring usage patterns to determine reordering needs, and executing orders through an online retailer using stored payment details.
3) Security and privacy concerns with such an internet-connected refrigerator are discussed, such as potential hacking of personal information or unauthorized device control. The proposal aims to minimize human interaction for household management.
DESIGN AND ANALYSIS OF DOUBLE WISHBONE SUSPENSION SYSTEM USING FINITE ELEMENT...ijsrd.com
Double wishbone designs allow the engineer to carefully control the motion of the wheel throughout suspension travel. 3-D model of the Lower Wishbone Arm is prepared by using CAD software for modal and stress analysis. The forces and moments are used as the boundary conditions for finite element model of the wishbone arm. By using these boundary conditions static analysis is carried out. Then making the load as a function of time; quasi-static analysis of the wishbone arm is carried out. A finite element based optimization is used to optimize the design of lower wishbone arm. Topology optimization and material optimization techniques are used to optimize lower wishbone arm design.
A Review: Microwave Energy for materials processingijsrd.com
Microwave energy is a latest largest growing technique for material processing. This paper presents a review of microwave technologies used for material processing and its use for industrial applications. Advantages in using microwave energy for processing material include rapid heating, high heating efficiency, heating uniformity and clean energy. The microwave heating has various characteristics and due to which it has been become popular for heating low temperature applications to high temperature applications. In recent years this novel technique has been successfully utilized for the processing of metallic materials. Many researchers have reported microwave energy for sintering, joining and cladding of metallic materials. The aim of this paper is to show the use of microwave energy not only for non-metallic materials but also the metallic materials. The ability to process metals with microwave could assist in the manufacturing of high performance metal parts desired in many industries, for example in automotive and aeronautical industries.
Web Usage Mining: A Survey on User's Navigation Pattern from Web Logsijsrd.com
With an expontial growth of World Wide Web, there are so many information overloaded and it became hard to find out data according to need. Web usage mining is a part of web mining, which deal with automatic discovery of user navigation pattern from web log. This paper presents an overview of web mining and also provide navigation pattern from classification and clustering algorithm for web usage mining. Web usage mining contain three important task namely data preprocessing, pattern discovery and pattern analysis based on discovered pattern. And also contain the comparative study of web mining techniques.
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Study of Attacks and Routing Protocol in Wireless Network
1. IJSRD - International Journal for Scientific Research & Development| Vol. 2, Issue 07, 2014 | ISSN (online): 2321-0613
All rights reserved by www.ijsrd.com 60
Study of Attacks and Routing Protocol in Wireless Network
Sarbjeet Kaur1 Akhilesh Bhardwaj2
2
Assistant Professor
1,2
Department of Computer Science Engineering
1,2
SKIET, Kurukshetra University, Kurukshetra, Haryana, India
Abstract— Wireless mesh networks (WMNs) are attractive
as a new communication paradigm. Ad hoc routing
protocols for WMNs are classified into: (1) proactive, (2)
reactive, and (3) hybrid approaches. In general, proactive
routing is more suitable for a stationary network, while
reactive routing is better for a mobile network with a high
mobility. In many applications, a node in WMN is mobile
but it can fluctuate between being mobile. Wireless mesh
networks is an emergent research area, which is becoming
important due to the growing amount of nodes in a network.
Key words: Wireless Network, Routing Protocol, Attacks
I. INTRODUCTION
A network in which, computer devices communicates with
each other without any wire. The communication medium
between the computer devices is wireless. When a computer
device wants to communicate with another device, the
destination device must lays within the radio range of each
other. Users in wireless networks transmit and receive data
using electromagnetic waves. Recently wireless networks
are getting more and more popular because of its mobility,
simplicity and very affordable and cost saving installation.
One of the great features of wireless network that
makes it fascinating and distinguishable amongst the
traditional wired networks is mobility. This feature gives
user the ability to move freely, while being connected to the
network. Wireless networks comparatively easy to install
then wired network. There is nothing to worry about pulling
the cables/wires in wall and ceilings. Wireless networks can
be configured according to the need of the users. These can
range from small number of users to large full infrastructure
networks where the number of users is in thousands.
A wireless mesh network (WMN) is an integration
result of multihop communication and wireless local area
networks (LANs) technology. Wireless Mesh Networks
(WMN) is a new distributed broadband access network.
Compared with the typical mobile Ad hoc network, it is with
less mobility and usually not powered by the battery. This
feature brings many advantages to WMN, such as low up-
front cost, easy network maintenance, robustness, and
reliable service coverage.
Fig. 1: Communications in Wireless Networks
II. ROUTING PROTOCOL
Routing protocols in Wireless Network are classified into
three different categories according to their functionality
(1) Reactive protocols
(2) Proactive protocols
(3) Hybrid protocols
Fig. 2: Hierarchy of Routing Protocols
A. Reactive Protocol
Reactive routing protocols are on-demand protocols. These
protocols do not attempt to maintain correct routing
information on all nodes at all times. Routing information is
collected only when it is needed, and route determination
depends on sending route queries throughout the network.
The primary advantage of reactive routing is that the
wireless channel is not subject to the routing overhead data
for routes that may never be used. While reactive protocols
do not have the fixed overhead required by maintaining
continuous routing tables, they may have considerable route
discovery delay. Reactive search procedures can also add a
significant amount of control traffic to the network due to
query flooding. Because of these weaknesses, reactive
routing is less suitable for real-time traffic or in scenarios
with a high volume of traffic between a large numbers of
nodes.
B. Proactive Protocol
In a network utilizing a proactive routing protocol, every
node maintains one or more tables representing the entire
topology of the network. These tables are updated regularly
in order to maintain up-to-date routing information from
each node to every other node. To maintain the up-to-date
routing information, topology information needs to be
exchanged between the nodes on a regular basis, leading to
relatively high overhead on the network. On the other hand,
routes will always be available on request. Many proactive
protocols stem from conventional link state routing,
including the Optimized Link State Routing protocol
(OLSR).
C. Hybrid Protocol
Wireless hybrid routing is based on the idea of organizing
nodes in groups and then assigning nodes different
functionalities inside and outside a group [13]. Both routing
table size and update packet size are reduced by including in
2. Study of Attacks and Routing Protocol in Wireless Network
(IJSRD/Vol. 2/Issue 07/2014/015)
All rights reserved by www.ijsrd.com 61
them only part of the network (instead of the whole); thus,
control overhead is reduced. The most popular way of
building hierarchy is to group nodes geographically close to
each other into explicit clusters. Each cluster has a leading
node (cluster head) to communicate to other nodes on behalf
of the cluster. An alternate way is to have implicit hierarchy.
In this way, each node has a local scope. Different routing
strategies are used inside and outside the scope.
Communications pass across overlapping scopes. More
efficient overall routing performance can be achieved
through this flexibility. Since mobile nodes have only a
single Omni directional radio for wireless communications,
this type of hierarchical organization will be referred to as
logical hierarchy to distinguish it from the physically
hierarchical network structure.
III. DESCRIPTION OF SOME ROUTING PROTOCOL
A. Destination-Sequenced Distance-Vector (DSDV)
Destination-Sequenced Distance-Vector Routing protocol is
a proactive table driven algorithm based on classic Bellman-
Ford routing. In proactive protocols, all nodes learn the
network topology before a forward request comes in. In
DSDV protocol each node maintains routing information for
all known destinations. The routing information is updated
periodically. Each node maintains a table, which contains
information for all available destinations, the next node to
reach the destination, number of hops to reach the
destination and sequence number. The nodes periodically
send this table to all neighbors to maintain the topology,
which adds to the network overhead. Each entry in the
routing table is marked with a sequence number assigned by
the destination node. The sequence numbers enable the
mobile nodes to distinguish stale routes from new ones,
there by avoiding the formation of routing loops
B. Optimized Link State Routing (OLSR)
OLSR is a proactive routing protocol, so the routes are
always available when needed. The OLSR optimizes the
link state algorithm by reducing the size of the control
packets that contain link state information by using only
selected nodes, called multi-point relay (MPR), to retransmit
control messages. To select MPR, each node periodically
broadcasts HELLO messages to its one-hop neighbors. Each
HELLO message contains a list of neighbors that are
connected to the node. Through exchanging the HELLO
message, a node selects the one hop neighbors which cover
all the two hop neighbors as its own MPR. In order to
exchange topological information, a Topology Control (TC)
message is broadcasted throughout the network. Each node
maintains a routing table in which the routes for all the
available destination nodes are kept.
C. Dynamic Source Routing (DSR)
Dynamic Source Routing protocol is a reactive protocol i.e.
it determines the proper route only when a packet needs to
be forwarded. The node floods the network with a route
request and builds the required route from the responses it
receives. DSR allows the network to be completely self
configuring without the need for any existing network
infrastructure or administration. The DSR protocol is
composed of two main mechanisms that work together to
allow the discovery and maintenance of source routes in the
ad hoc network. All aspects of protocol operate entirely on-
demand allowing routing packet overhead of DSR to scale
up automatically.
Route Discovery: When a source node S wishes to
send a packet to the destination node D, it obtains a route to
D. This is called Route Discovery. Route Discovery is used
only when S attempts to send a packet to D and has no
information on a route to D.
Route Maintenance: When there is a change in the
network topology, the existing routes can no longer be used.
In such a scenario, the source S can use an alternative route
to the destination D, if it knows one, or invoke Route
Discovery. This is called Route Maintenance.
D. Temporally-Ordered Routing Algorithm (TORA)
The Temporally-Ordered Routing Algorithm (TORA) is a
distributed routing protocol for multi-hop networks with a
unique approach for routing the packets to their destination.
TORA is fully distributed, in that routers need only maintain
information about adjacent routers (i.e. one hop knowledge)
and there is no centralized control. This is essential for all
Ad Hoc routing protocols. Like a distance-vector routing
approach, TORA maintains state on a per-destination basis.
However, it does not continuously execute shortest-path
computation and thus the metric used to establish the routing
structure does not represent a distance. The destination
oriented nature of the routing structure in TORA supports a
mix of reactive and proactive routing on a per-destination
basis. During reactive operation, sources initiate the
establishment of routes to a given destination on demand.
This mode of operation may be advantageous in dynamic
networks with relatively sparse traffic patterns since it may
not be necessary or desirable to maintain routes between
every source/destination pair at all times.
At the same time, selected destinations can initiate
proactive operation, resembling traditional table-driven
routing approaches. This allows routes to be proactively
maintained to destinations for which routing is consistently
or frequently required (e.g., servers or gateways to
hardwired infrastructure). TORA is designed to minimize
the communication overhead associated with adapting to
network topological changes. The scope of TORA's control
messaging is typically localized to a very small set of nodes
near a topological change. A secondary mechanism, which
is independent of network topology dynamics, is used as a
means of route optimization and soft-state route verification.
The design and flexibility of TORA allow its operation to be
biased towards high reactivity (i.e., low time complexity)
and bandwidth conservation (i.e., low communication
complexity) rather than routing optimality-- making it
potentially well suited for use in dynamic wireless networks.
IV. DESCRIPTION OF SOME ATTACKS IN WIRELESS
NETWORK
A. Gray Hole Attack
Every node maintain a routing table that stores the next hop
node information for a route a packet to destination node,
when a source node want to route a packet to the destination
node , it uses a specific route if such a route is available in
it’s routing table. otherwise , nodes initiates a route
discovery process by broadcasting Route Request (RREQ)
message to it’s neighbors. On receiving RREQ message, the
intermediate nodes update their routing tables for a reverse
3. Study of Attacks and Routing Protocol in Wireless Network
(IJSRD/Vol. 2/Issue 07/2014/015)
All rights reserved by www.ijsrd.com 62
route to source node. A Route Reply (RREP) message is
sent back to the source node when the RREQ query reaches
either the destination node itself or any other node that has a
current route to destination.
The gray hole attack has two phases , In first phase,
a malicious node exploits the AODV protocol to advertise
itself as having a valid route to destination node, with the
intension of interrupting or corrupting packets, event though
route is spurious. In second phase ,nodes drops the
interrupted packets with a certain probability. Detection of
gray hole is difficult process. In some other gray hole
attacks the attacker node behaves maliciously for the time
until the packets are dropped and then switch to their normal
behavior. Due this behavior it’s very difficult for the
network to figure out such kind of attack. Gray hole attack is
also termed as node misbehaving attack .
Fig. 3: Basic Idea about the Gray hole attack
B. Black Hole Attack
In this type of attack, a malicious node falsely advertises
good path (e.g., shortest path or most stable path) to the
destination node during the path finding process. The
intension of the malicious nodes could be to hinder the path
finding process or to interrupt all the data packets being sent
to the concerned destination node. This hostile node
advertises its availability of fresh routes irrespective of
checking its routing table. In this way attacker node will
always have the availability in replying to the route request
and thus intercept the data packet and retain it .
In protocol based on flooding, the malicious node reply will
be received by the requesting node before the reception of
reply from actual node; hence a malicious and forged route
is created. When this route is establish, now it’s up to the
node whether to drop all the packets or forward it to the
unknown address.
Fig. 4: Basic Idea about the Black hole attack
V. RELATED WORK
Jing Xie, Luis Gironés Quesada and Yuming Jiang [1]
proposed a Threshold-based Hybrid Routing Protocol for
MANET. MANET is a network where topologies of the
network changes rapidly because all the nodes are free to
move and each acts as a router. In this paper a Threshold-
Based Hybrid Routing protocol (THRP) had been proposed
that switches between Proactive MANET Protocol (PMP)
and Reactive MANET Protocol (RMP) based on the speed
of the nodes. When nodes are moving slowly PMP would be
running on the proactive cluster an when nodes are moving
fast RMP would be running on the nodes.
In this paper theoretical comparison had been
between OLSR, AODV, ZRP and THRP.OLSR consumes
more bandwidth because of periodic updating of their
routing table so when number of node increases overhead
increases. AODV broadcast HELLO messages periodically
and find routes on demand so for higher density or node
mobility it may consume more bandwidth. ZRP is expected
to reduce maintaince of routing table but introduces
overhead because of use of proactive protocol for intra-zone.
Where as THRP in PMP control flooding by defining
maximum number of nodes in proactive cluster. In OLSR
routes are maintained before it is required and if link broken
route can be discovered rapidly so it has less delay. AODV
uses on-demand route discovery so it has more delay. ZRP
has lesser delay than AODV but more than OLSR especially
when source and destination are in different zones. In THRP
nodes within same cluster has lesser delay but if one node is
of proactive cluster and other is reactive than delay
increases. OLSR performance degraded as the network size
increases because of overheads. AODV performance also
degraded on larger network because of increased path length
and delay. ZRP has zone radius which are overlapping leads
to overhead flooding in other zones. THRP has better
scalability than both AODV and OLSR because it uses both
proactive and reactive approach and THRP is suitable for
large number of moving nodes with various speeds.
Asad Amir Pirzada, Ryan Wishart and Marius
Portmann[2] proposed anCongestion-Aware Routing In
Hybrid Wireless Mesh Network.Multi-radio Wireless Mesh
Networks (WMN) are gaining lot of popularity owing to
their increased application to community and public safety
networks. WMNs form a static wireless backhaul to provide
connectivity to mobile clients. The wireless medium, being
shared and contended for, creates a number of hurdles
including congestion, interference and noise. Multiradio
nodes can take advantage of the wider frequency spectrum.
However, current mesh technologies employ a simplistic
approach by assigning one channel for client servicing and
another for the backhaul network. The improper reuse of the
same channel across multiple hops causes extensive co-
channel interference leading to lower bandwidth. The
problem is aggravated in a hybrid WMN where the mobile
clients act as routers for other clients. In this paper, they
propose a congestion aware routing protocol, which can
successfully establish channel diverse routes through least
congested areas of a hybrid WMN. The prime advantage of
the protocol is its ability to discover optimal routes in a
distributed manner without the requirement of an omniscient
network entity. Simulation results show that the congestion
aware routing protocol can successfully achieve a high
packet delivery ratio with lower routing overhead and
latency in a hybrid WMN.
Charles E. Perkins and Elizabeth M. Royer [3]
proposed Ad-hoc On-Demand Distance Vector Routing , a
novel algorithm for operation of ad-hoc networks. DSDV is
effective for creating ad-hoc networks for small populations
of mobile nodes.DSDV also requires each mobile node to
maintain a complete list of routes, one for each destination
within the ad-hoc network. Although AODV does not