COTE: A Clustering Scheme with Optimal Tiers and Energy Ef.ciency in Wireless Sensor Networks

摘要：

In wireless sensor networks (WSNs), Energy consumption will be reduced by grouping all the sensor nodes into clusters and letting the data be aggregated at cluster heads (CHs). In this paper, we address the issue of how many tiers in a given clustering scheme are optimal in saving energy. We present a method to calculate the optimal tier number with consideration to the energy consumption both in data transmission and control overhead. We propose a clustering scheme with optimal tiers and energy ef.ciency for wireless sensor networks, which we term COTE for short. We theoretically analyze the energy consumption, computing complexity and network latency of COTE. COTE not only minimizes the energy consumption by hierarchically organizing clusters with an optimal tier but also has a low message overhead and preferable network lifetime. Simulation results demonstrate that COTE has less energy consumption and longer lifetime with comparison to the existing scheme.

作者: Liansheng Tan Yumei Ying Wei Liu

作者单位: The Research School of Information, Sciences and Engineering,The Australian National University anbe Yumei Ying Wuhan 430079, PR China

会议类型: 国际会议

会议名称: Sixth International Conference on Semantics,Knowledge and Grids(第六届语义、知识与网格国际会议 SKG 2010)

会议地点: 宁波

会议语种:英文

页码: 164-171

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）