An analysis of MAC protocol techniques in multihop wireless sensor networks

Abstract

The design of MAC protocol can offer significant energy saving in multihop wireless sensor networks. The sources of energy wastage in wireless sensor networks is overhearing, idle listening, protocol overhead and collisions. There are some methods which have been proposed to avoid energy wastage such as the use of RTS/CTS, long preamble, random backoff and others [1]. Although there are many protocols have been developed, the discussion of MAC protocol done in this paper is Prioritized MAC PSIFT [2], RMAC [3], LAS-MAC [4] and MF-MAC [5]. All MAC protocol was designed to achieve only one goal, energy consumption and latency. The low energy consumption and low latency, the long lifetime of sensor nodes.