Medium Access Control (MAC) protocol is one of the key network protocols that ensure Wireless Sensor Networks (WSNs) maintain high performance during communication. MAC protocol design plays an important role in improving the performances of the whole network. First, Wireless Passive Sensor Networks (WPSNs) and MAC protocols are introduced in this paper. Second, some existing MAC protocols are ...

Wireless communications has become ubiquitous these days. With the advent of multimedia applications, there is a need for higher bandwidth and faster data rates. A Medium Access Control (MAC) protocol is required for effective utilization of network resources and to transmit multimedia traffic classes with quality of service requirements. In the proposed Dynamic MAC protocol under low load cond...

Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSN) are usually designed as random access protocols that apply different kinds of backoff strategies since Time Division Multiple Access (TDMA) based protocols with admission control are very complex and require mechanisms for synchronization. Without such mechanisms, fair or priority based medium access with Quality of Servic...

In wireless ad-hoc networks, the beam forming antenna technology is a new and promising solution to many challenges. Beam forming antennas have the ability to increase the spatial reuse, improve the transmission reliability, extend the transmission range and/or save the power consumption. If they are effectively used, they can significantly improve the network capacity, lifetime, connectivity a...

Escola Tècnica Superior d’Enginyeria de Telecomunicació de Barcelona Master of Science in Information and Communication Technologies Wireless Sensor Networks on-board Aircrafts: design and implementation of the Medium Access Control protocol by Cristian Sánchez The Wireless Sensor Networks is an upcoming technology with a huge potential. It has the ability of monitor an environment and provide ...

In order to improve the throughput performance of Medium Access Control (MAC) schemes in wireless communication networks, some researchers proposed to split the single shared channel into two subchannels: a control subchannel and a data subchannel. The control subchannel is used for access reservation to the data subchannel over which the data packets are transmitted, and such reservation can b...

This paper introduces the design, implementation, and performance analysis of the scalable and mobility-aware hybrid protocol named boarder node medium access control (BN-MAC) for wireless sensor networks (WSNs), which leverages the characteristics of scheduled and contention-based MAC protocols. Like contention-based MAC protocols, BN-MAC achieves high channel utilization, network adaptability...

The flexible use of sensors has made them an attractive device to be deployed in almost every field of life such as health, military and home. Recent advancement in electronics and wireless communications has witnessed the development of low cost-sensor devices. While wireless sensor networks (WSNs) are flexible to use and less costly, they need to be more energy-efficient as they are operated ...

Massive Machine Type Communication (mMTC) can be used to connect a large number of sensors over wide coverage area. One the places where mMTC applied is in wireless sensor networks (WSNs). A WSN consists several nodes that send their sensing information cluster head (CH), which then forwarded high altitude platform (HAP) station. Sensing sent by at same time through medium, means collision occu...

The Manhattan Street Network (MSN) with the Clockwork Routing scheme has been proposed as a particularly suitable candidate for use in optical networks. However, without any medium access control (MAC), the success of the MSN with Clockwork Routing in optical networks would be inhibited by the destination-release protocol, since the protocol provides no guarantee of fair access or bounded traff...