![]() ![]() (author)Ĭonnectivity-Based Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANsįull Text Available We propose the efficient reliable multicast MAC protocol based on the connectivity information among the recipients. From the analysis of contention based MAC protocols in term of energy consumption, it was being observed that protocols based on preamble sampling consume lesser energy than protocols based on static or dynamic sleep schedule. It was analyzed that contention based MAC protocols are less energy efficient as compared to hybrid MAC protocols. A comparison with respect to energy reservation scheme, idle listening avoidance, latency, fairness, data synchronization, and throughput maximization has been presented. ![]() This study also aims to give reader a better understanding of the concepts, processes and flow of information used in these MAC protocols for WSN. The goal of this comparative study is to provide a basis for MAC protocols and to highlight different mechanisms used with respect to parameters for the evaluation of energy and transmission efficiency in WSN. These nine protocols are classified in contention based and hybrid (combination of contention and schedule based) MAC protocols. In this paper, nine MAC protocols which includes S- MAC, T- MAC, Wise- MAC, Mu- MAC, Z- MAC, A- MAC, D- MAC, B- MAC and B- MAC+ for WSN have been explored, studied and analyzed. There are number of MAC protocols that exist in the literature proposed for WSN. The design of a MAC protocol should also address the issues of energy efficiency and transmission efficiency. The MAC protocols are responsible to communicate and coordinate between nodes according to the defined standards in WSN (Wireless Sensor Networks). International Nuclear Information System (INIS)ĭata communication between nodes is carried out under Medium Access Control ( MAC) protocol which is defined at data link layer. Mac protocols for wireless sensor network (wsn): a comparative study A modification of the protocol is then proposed to eliminate the need for some nodes to stay awake longer than the other nodes which improves the energy efficiency, latency and throughput and hence increases the life span of a wireless sensor network. ![]() A new protocol is suggested to improve the energy efficiency, latency and throughput of existing MAC protocol for WSNs. S†MAC uses a few innovative techniques to reduce energy consumption and support selfconfiguration. This paper introduces different types of MAC protocols used for WSNs and proposes S†MAC, a Mediumâ€∊ccess Control protocol designed for Wireless Sensor Networks. Meanwhile, the sensor network should be able to maintain a certain throughput in order to fulfill the QoS requirements of the end user, and to ensure the constancy of the network. ![]() A lot of work has been done to minimize the energy expenditure and prolong the sensor lifetime through energy efficient designs, across layers. Since, sensors typically operate on batteries, replacement of which is often difficult. Power Saving MAC Protocols for WSNs and Optimization of S- MAC Protocolĭirectory of Open Access Journals (Sweden)įull Text Available Low power MAC protocols have received a lot of consideration in the last few years because of their influence on the lifetime of wireless sensor networks. In addition, this book also presents the design and evaluation of an adaptive MAC protocol for medical CPS, which exemplifies how to facilitate real-time and reliable communications in CPS by exploiting IEEE 802.15.4 based MAC protocols. The evaluation analysis of IEEE 802.15.4 for CPS therein will give insights into configuration and optimization of critical design parameters of MAC protocols. This book provides a literature review of various wireless MAC protocols and techniques for achieving real-time and reliable communications in the context of cyber-physical systems (CPS). ![]()
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