Wireless Personal Communications: An International Journal

In wireless sensor networks, one of the most important constraints is the low power consumption requirement. For that reason, several hierarchical or cluster-based routing methods have been proposed to provide an efficient way to save energy during ...

The converge-cast in wireless sensor networks (WSNs) is widely applied in many fields such as medical applications and the environmental monitoring. WSNs expect not only providing routing with high throughput but also achieving efficient energy saving. ...

In this paper, we propose a new medium access control (MAC) protocol for wireless sensor networks called MMSMAC (multi-mode sensor MAC protocol), which operates according to the application requirements and traffic load, in three main modes: synchronous,...

The localization of nodes plays a fundamental role in Wireless Sensor and Actors Networks (WSAN) identifying geographically where an event occurred, which facilitates timely response to this action. This article presents a performance evaluation of ...

Directional communication in wireless sensor networks minimizes interference and thereby increases reliability and throughput of the network. Hence, directional wireless sensor networks (DWSNs) are fastly attracting the interests of researchers and ...

Resource-constrained nodes in unattended wireless sensor network (UWSN) operate in a hostile environment with less human intervention. Achieving the optimal quality of service (QoS) in terms of packet delivery ratio, delay, energy, and throughput is ...

This paper introduces a new mobility control method for surveillance applications of wireless sensor and actor networks. The proposed method is based on virtual electrostatic forces which act on actors to coordinate their movements. The definition of ...

Cooperative communication utilizes multi-user spatial diversity to improve spectrum efficiency and channel capacity. However, due to the limited wireless network resource, the selfish relay nodes may be unwilling to offer their relay assistance without ...

Due to the high attenuation of the water at high frequencies, underwater communications in freshwater are not being investigated so much. Many current underwater communication systems are based on acoustic or optical techniques. The use of ...

In this paper, a new way to a selection of the secure relay nodes in hybrid MANET---DTN networks based on the cooperation between routing, trust and game theory mechanisms is introduced. The hybrid MANET---DTN enables delivering the data or messages in ...

Trust management is a promising approach to conduct nodes' transactions and establish management interactions in mobile ad hoc networks, in which collaboration between nodes is critical to achieve system goals. Lack of centralized management, severe ...

Now a days, the communication between different nodes in a Mobile Ad hoc Network (MANET) is not guarded. Various encryption mechanisms are used to protect the communication between nodes. Link failures and packet dropping due to unfaithful nodes are ...

Recently, the interest of research is going to be focused on the emerging vehicular ad-hoc networks paradigm. In these networks, vehicles communicate with each other and have the possibility of exploiting a distributed approach, typical of ad-hoc ...

Due to the dense deployed base stations and the growing traffic of best effort (BE) services, frequent bursty interference becomes one of major challenges to assure quality of experience (QoE) for real-time video services. Considering those situations, ...

Nowadays mobile operators are trying to find an economic solution to improve coverage, mainly indoor, and to meet exponentially growing data traffic demands. A cost-effective means to manage these challenges represent small cells, such as metrocells or ...

The Internet of Things (IoT) is an expansion of Internet-based sensing, processing and networking. As a key technique of the IoT, the Radio Frequency Identification (RFID) had a prosperous development in the past decade. Security schemes were also ...

The micropayment scheme is widely used in the electronic payment, where the transaction value is tiny, meanwhile, the number of transactions is very huge. Recently, Liu and Yan proposed a lightweight micropayment scheme to achieve the efficiency, the ...

Although cloud computing becomes a new computing model, a variety of security threats have been described. Among these threats, SQL injection attack (SQLIA) has received increasing attention recently. In the past, many researchers had proposed several ...

Cloud storage is a new storage mode emerged along with the development of cloud computing paradigm. By migrating the data to cloud storage, the consumers can be liberated from building and maintaining the private storage infrastructure, and they can ...

The fast growing usage of mobile devices to access services over telecommunication networks urges researchers to look for an efficient way to secure users' online credentials. Rooted in online users' fear appeals, this study measures the impact of an ...

This paper proposes a host behavior based darknet traffic decomposition approach to identifying groups of malicious events from massive historical darknet traffic. In this approach, we segment traffic flows from captured darknet data, distinguish scan ...

Internet of Things has drastically expanded the global network for information exchange, because thousands of communication devices are becoming part of the global network. Besides the numerous benefits of global network expansion, secure communication ...

The paper presents a system for monitoring and assessment the speech quality in the IP telephony infrastructures using modular probes. The probes are placed at key nodes in the network where aggregating packet loss data. The system dynamically measures ...

The H264/SVC codec allows for generation of hierarchical video streams. In the stream of this type video data belonging to different layers have different priority depending on their importance to the quality of the video and the decoding process. This ...

Localization is emerging as a vital functionality of various wireless applications. Existing localization methods generally partition irregular regions with huge obstacles into regular ones, and rely on at least three anchor nodes to localize unkonwn ...

The quantum entanglement is an important feature of many protocols in the field of quantum computing. In this paper we evaluate a level of entanglement in short qutrit chains. This evaluation is carried out with use of the computable cross norm and ...

Our paper deals with the architecture and standards of IP the multimedia subsystem from next generation networks point of view. It describes the structure of the home subscriber server database and then derives equations for sizing of its load in the ...

Heterogeneous wireless communication networks, like 4G LTE, transport diverse kinds of IP traffic: voice, video, Internet data, and more. In order to effectively manage such networks, administrators need adequate tools, of which traffic classification ...