Equalization of energy consumption at cluster head for prolonging lifetime in cluster-based wireless sensor networks

Authors:
Yung-Fa Huang;Neng-Chung Wang;Chin-Ling Chen;Jong-Shin Chen;Zong-Min Guo
Affiliations:
Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung County, Taiwan;Department of Computer Science and Information Engineering, National United University, Taiwan;Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung County, Taiwan;Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung County, Taiwan;Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung County, Taiwan
Venue:
WSEAS TRANSACTIONS on COMMUNICATIONS
Year:
2009

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Abstract

In cluster-based wireless sensor networks (WSN), the most of energy is consumed in cluster head which performs data aggregations and relaying. The lifetime in cluster-based WSN is subjected by the lifetime of cluster heads. Therefore, in this paper, we equalize the energy consumption of the cluster heads to prolong the lifetime of WSN. After equalization, we obtain the length of sides of cluster area. Numerical results show that the length of far site cluster is shorter than the nearest cluster to perform equalization for all three routing schemes. Moreover, simulation results show that the three-hop scheme can obtain the most energy efficiency than other two schemes.