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A Receiver-Initiated MAC Protocol for Wireless Sensor Networks Based on Tree Topology

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  • Inhye Park
  • Joonhwan Yi
  • Hyungkeun Lee

Abstract

This paper proposes receiver-initiated X-MAC with tree topology (TRIX-MAC), an improved energy-efficient MAC protocol based on an asynchronous duty cycling for wireless sensor networks with tree topology. TRIX-MAC improves energy efficiency through utilizing short preambles and adopting the receiver-initiated approach that minimizes sender nodes' energy consumption by enabling transmitters to predict receiver nodes' wake-up times and reduces receiver nodes' energy consumption by decreasing the number of control frames. In many sensor network applications, the data flow from source nodes to a sink forms a unidirectional tree. A property of tree topology, the parent-child relation, is also exploited to reduce the likelihood of collisions between frames sent by children nodes. We use the network simulator, ns-2, to evaluate TRIX-MAC's performance. Compared to the prior asynchronous duty cycling approaches of X-MAC, RIX-MAC, and PW-MAC, the proposed protocol shows better performance in terms of throughput, energy efficiency, and end-to-end delay.

Suggested Citation

  • Inhye Park & Joonhwan Yi & Hyungkeun Lee, 2015. "A Receiver-Initiated MAC Protocol for Wireless Sensor Networks Based on Tree Topology," International Journal of Distributed Sensor Networks, , vol. 11(10), pages 950656-9506, October.
    • Handle: RePEc:sae:intdis:v:11:y:2015:i:10:p:950656
    DOI: 10.1155/2015/950656
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