Priority-Based Hybrid MAC for Energy Efficiency in Wireless Sensor Networks

Ines Slama, Badii Jouaber, Djamal Zeghlache

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DOI: 10.4236/wsn.2010.210091                

Abstract

This paper introduces I-MAC, a new medium access control protocol for wireless sensor networks. I-MAC targets at improving both channel utilization and energy efficiency while taking into account traffic load for each sensor node according to its role in the network. I-MAC reaches its objectives through prioritized and adaptive access to the channel. I-MAC performances obtained through simulations for different network topologies, scenarios and traffic loads show significant improvements in energy efficiency, channel utilization, loss ratio and delay compared to existing protocols.

Keywords

MAC Protocol, Prioritization, Energy Efficiency, Throughput, Channel Utilization, Wireless Sensor Networks

Conflicts of Interest

The authors declare no conflicts of interest.

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