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Priority-Based Hybrid MAC for Energy Efficiency in Wireless Sensor Networks
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Wireless Sensor Network·Volume 02 (2010)·Pages 755–767·Published 27 October 2010·DOI10.4236/wsn.2010.210091
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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.
KeywordsMAC ProtocolPrioritizationEnergy EfficiencyThroughputChannel UtilizationWireless Sensor Networks
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