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http://dx.doi.org/10.6109/jkiice.2007.11.6.1201

Adjusting Cluster Size for Alleviating Network Lifetime in Wireless Sensor Network  

Kwak, Tae-Kil (창원대학교 전자공학과)
Jin, Kyo-Hong (창원대학교 전자공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.11, no.6, 2007 , pp. 1201-1206 More about this Journal
Abstract
In this paper, we propose an algorithm that improve network lifetime by adjusting cluster size according to location information of sensor node in wireless sensor network (WSN) using clustering algorithm. The collected sensing information by sensor nodes in each cluster are transferred to sink node using inter-cluster communications method. Cluster head (CH) that located nearby sink node spend much more energy than those of far from sink node, because nearer CH forwards more data, so network lifetime has a tendency to decrease. Proposed algorithm minimizes energy consumption in adjacent cluster to sink node by decreasing cluster size, and improve CH lifetime by distributing transmission paths. As a result of mathematical analysis, the proposed algorithm shows longer network lifetime in WSN.
Keywords
Cluster Site; Sensor Network; Energy Efficiency; Lifetime; Node Location;
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