This paper first discusses the machine to machine (M2M) domain architecture which becomes the basic model for hybrid Medium Access Control (MAC) protocols for large M2M networks and also it sets the background for hybrid MAC scheme. A review of the contention based and reservation based MAC protocols used in M2M networks is then made. Refer ences Liu,Y. , Yuen, C. , Chen, J. and Cao, X. 2013. A...

Safety applications are the highest priority services in the Vehicular Ad Hoc NETworks (VANETs). To support the highest priority service, the Medium Access Control (MAC) protocol is designed to provide efficient broadcast. Compared to IEEE 1609.4, a new multi-channel MAC for VANET (HER-MAC) is proposed which is more reliable in safety applications. In this paper, we propose an analytical model ...

Based on application requirements, nodes are static or mobile in Wireless Sensor Networks (WSNs). Mobility poses challenges in protocol design, especially at the link layer requiring mobility adaptation algorithms to localize mobile nodes and predict link quality to be established with them. This study implements XMAC and Berkeley Media Access Control (BMAC) routing protocols to evaluate perfor...

The paper presents a brief survey of the Medium Access Control (MAC) protocols for Wireless Sensor Networks (WSN). It describes pros and cons of some known solutions of the MAC protocols with emphasis on his energy efficiency. The main goal in WSN is prolonging the lifetime of the sensor node, that is usually battery powered and can thus be achieved by designing energy-efficient MAC protocols. ...

This paper considers the MAC layer in General Packet Radio Service (GPRS) system. We present the MAC procedures used to enable multiple mobile stations to share a common transmission medium that may contains many radio physical channels. This layer makes use of slotted ALOHA protocol combined with a specific retransmission mechanism in order to establish the physical connection. The access pers...

Because nodes are usually battery-powered, the energy presents a very scarce resource in wireless sensor networks. For this reason, the design of medium access control had to take energy efficiency as one of its hottest concerns. Accordingly, in order to improve the energy performance of MAC schemes in wireless sensor networks, several ways can be followed. In fact, some researchers try to limi...

We analyze the capacity of ultra-wide band (UWB) wireless access networks supporting multimedia services by calculating the number of multimedia connections that can be supported in a UWB access network with IEEE 802.15.3 Medium Access Control (MAC) protocol, considering the overheads from different layers. We then propose how to increase the capacity by improving the MAC protocol design and pa...

Performance evaluation results of the Infrared Data Association (IrDA) Advanced Infrared Medium Access Control (AIr MAC) layer are presented. AIr MAC implements Unreserved and Reserved data transfer modes. Reserved mode employs the Request To Send / Clear To Send (RTS/CTS) media access reservation scheme. A simulator for the AIr MAC layer is developed. The importance of the Collision Avoidance ...

In wireless sensor networks (WNSs), the research on medium access control (Mac) protocol is one of the hot topic for researcher. And also, the MAC protocol is a determined factor for communication performance. In this paper, we proposed a novel energy efficient MAC protocol to improve the energy effectiveness. Based on the analysis on current existing MAC protocol, our protocol can adjust the d...

Two important criteria of wireless body area networks (WBANs) are low power consumption and delay. These can be met by designing efficient medium access control (MAC) protocols. In this paper, two TDMA-based MAC protocols proposed. The first protocol, TM–MAC makes use only a main radio. second proposed TWM–MAC WUR alongside the compared with different categories standard it is shown that they o...