Energy-Efficient MAC Protocols for Wireless Sensor Networks

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Executive Summary

Designing energy-efficient Medium Access Control (MAC) protocols has a significant influence on the energy performance of Wireless Sensor Network (WSN). This paper presents a survey of the recent typical MAC protocols regarding energy efficiency for WSN. According to channel access policies, the paper classifies these protocols into four categories: contention-based, TDMA-based, hybrid, and cross layer protocols, in which the advantages and disadvantages in each class of MAC protocols are discussed. Finally, the paper points out open research issues that need to carry on to achieve high energy efficiency for the design of MAC protocols in WSN.

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