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Medium-Contention Based Energy-Efficient Distributed Clustering (MEDIC) for Wireless Sensor Networks

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  • Liang Zhao
  • Qilian Liang

Abstract

In this paper, we utilize clustering to organize wireless sensors into an energy-efficient hierarchy. We propose a Medium-contention based Energy-efficient DIstributed Clustering (MEDIC) scheme, through which sensors self-organize themselves into energy-efficient clusters by bidding for cluster headship. This scheme is based on a new criterion that can be used by each sensor node to make a distributed decision on whether electing to be a cluster head or a non-head member, which is a fully distributed approach. Although MEDIC uses only local information, it achieves better performance in terms of effective lifetime and its Data/Energy Ratio is 25% higher than native LEACH (Low-Energy Adaptive Clustering Hierarchy), which relies on other routing algorithms to access global information. A complementary exponential data correlation model is also introduced to simulate different data aggregation effect.

Suggested Citation

  • Liang Zhao & Qilian Liang, 2007. "Medium-Contention Based Energy-Efficient Distributed Clustering (MEDIC) for Wireless Sensor Networks," International Journal of Distributed Sensor Networks, , vol. 3(4), pages 347-369, October.
    • Handle: RePEc:sae:intdis:v:3:y:2007:i:4:p:347-369
    DOI: 10.1080/15501320701260709
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