With an increased emphasis on transportation safety requirements, Vehicular Ad-hoc Networks (VANETs) have emerged as the key underlying technology in the realization of Intelligent Transportation Systems (ITS). The IEEE-1609 set of standards for Wireless Access for Vehicular Environment (WAVE) specifies an architecture that includes new standards for vehicular communication, aimed at supporting...

In the current decade, wireless sensor networks are emerging as a peculiar multi-disciplinary research area. By this way, energy efficiency is one of the fundamental research themes in the design of Medium Access Control (MAC) protocols for wireless sensor networks. Thus, in order to optimize the energy consumption in these networks, a variety of MAC protocols are available in the literature. T...

Wireless Sensor Network (WSN) is an attractive choice for a variety of applications as no wired infrastructure is needed. Other wireless networks are not as energy constrained as WSNs, because they may be plugged into the mains supply or equipped with batteries that are rechargeable and replaceable. Among others, one of the main sources of energy depletion in WSN is communications controlled by...

—MAC (medium access control) protocol plays an important role in Wireless Sensor Networks (WSNs) due to limited bandwidth and battery. MAC protocol that provides Priority-based quality of service (QoS) which satisfies various traffic transmission requirement will form the base of highperformance network application. This paper presents a new priority-based parallel schedule polling MAC protoco...

The IEEE 802.14 standard committee is currently working on a project to find a costeffective means of providing access to integrated networks for people to enjoy multimedia programs and to work at home. An advanced system based on the CATV system called Hybrid Fiber Coax (HFC) is being studied. Since some properties of the HFC system preclude the possibility of directly using existing medium ac...

Medium Access control (MAC) is one of the fundamental problems in wireless sensor networks. The performance of wireless sensor network depends on it. The main objective of a medium access control method is to provide high throughput, minimize the delay, and conservers the energy consumption by avoiding the collisions. In this paper, a general model for MAC protocol to reduce the delay, maximize...

The exponential growth of wireless network in recent years has brought some major research issues that include a fair share of the available bandwidth, quality of service (QoS) and control of misbehaving traffic nodes/sources. However, in wireless networks, including cellular, Ad Hoc, and sensor networks, that are based on a shared medium and often contention-oriented protocols, these issues ha...

In this paper, we propose a hybrid polling Medium Access Control (MAC) protocol with Human Energy Harvesting capabilities, called HEH-BMAC, designed for Wireless Body Area Networks (WBANs). The proposed protocol uses a dynamic schedule algorithm to combine User Identification polling (ID) and Probabilistic Contention (PC) random access, adapting the network operation to the random, time-varying...

Future mobile ad hoc networks are expected to support voice traffic. The requirement for small delay and jitter of voice traffic poses a significant challenge for medium access control (MAC) in such networks. User mobility presents particular difficulties in this context due to the associated dynamic path attenuation. In this paper, a MAC scheme for mobile ad hoc networks supporting voice traff...