The communication network based on LoRaWAN technology consists of N nodes and carries out one-way transmission of monitoring data to the base station (BS). The messages from each node are sent to the BS at random time intervals and independently ...

Current LoRa networks including those following the LoRaWAN specification use the primitive ALOHA mechanism for media access control due to LoRa’s lack of carrier sense capability. From our extensive measurements, the channel activity detection feature ...

The leakage or explosion of hazardous chemicals will seriously affect the operation safety of nuclear power plants. Therefore, in the nuclear safety review, it has been clearly proposed that the environmental risks of off-site toxic chemicals ...

Reinforcement learning (RL) has been proposed as a technique that allows nodes to learn to coordinate their transmissions in order to attain much higher channel utilization. Several RL-based approaches have been proposed to improve the ...

Current LoRa networks including those following the LoRaWAN specification use the primitive ALOHA mechanism for media access control due to LoRa's lack of carrier sense capability. From our extensive measurements, the Channel Activity Detection (CAD) ...

Machine‐to‐machine (M2M) communications being pivotal for internet of things (IoT) networks are characterized by low‐cost, low complexity, and often energy constrained terminals with low traffic duty cycle. Satellite networks provide an attractive ...

Wireless Sensor Network (WSN) is a specific type of networks that helps in creating smart cities. Its goal is to create a network containing many smart sensor nodes capable of measuring several parameters of interest for better city management and urban ...

We consider an hoc network where nodes are assumed to be distributed uniformly in space, according to a 2-D Poisson point process (PPP), and packets arrive at each transmitter according to a 1-D temporal PPP. The system bandwidth is divided into ...

In most hazardous materials (Hazmat for short) transportation systems, the purpose is to reduce the risk-cost from origins to destinations. This makes the hazmat system more complicated when compared to many other transportation systems. There are ...

In this paper, we investigate the energy efficiency and throughput of ALOHA based underwater acoustic sensor networks (UASNs). We derive closed form expressions for the channel attempt rate and packet length at which energy efficiency and throughput are ...

The Open Systems Interconnection OSI model describes the layered approach for communication between two networked systems. The Data link layer of OSI model consists of a sub layer known as MAC layer for achieving coordination among the communicating ...

This paper studies the potential of a novel approach to ensure more efficient and intelligent assignment of capacity through medium access control (MAC) in practical wireless sensor networks. Q-Learning is employed as an intelligent transmission ...

In this paper, we study the performance of rateless error correction codes in a wireless ad hoc network (WANET). The salient features of a WANET are Rayleigh fading, constant power transmission, pure ALOHA as the channel access protocol, and the nodes ...

We present a novel upper bound on the Ergodic Rate Density (ERD) of ALOHA wireless ad-hoc networks. Our analysis uses a proper model of the physical layer together with an abstraction of higher communication layers. The novel bound is very general and ...

The advancement in wireless technology in the present era have created networks with low cost and low power consumption. One of such networks which exist is called as Mobile Ad-hoc network which is characterized by wirelessly connected nodes with ...

RFID systems have been extensively applied in many fields for the past few years. Along with RFID technique changing our life, there still exist some issues that can't be ignored. Anti-collision ability is one of the most important standards to measure ...

In order to enhance the efficiency of radio frequency identification (RFID) and lower system computational complexity, this paper proposes three novel tag anticollision protocols for passive RFID systems. The three proposed protocols are based on a ...

Location is a key context in the location-based services (LBS) which have been well studied in the domain of pervasive computing. The radio frequency (RF) based positioning plays important role in the LBS applications due to the good resolution, clear ...

The Radio Frequency Identification (RFID) technology has been widely applied to labeling moving objects. In some RFID application scenarios, e.g., product checking on conveyor belt, the tags labeled on the products need to be identified and accessed ...