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Vol. 152, No. 5, May 2013, pp. 41-50




An Energy-Efficient Adaptive Clustering Protocol for Wireless Sensor Network
1,2 Lü Tao, 1 ZHU Qing-Xin, 3 ZHU Yu-Yu

1 School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China

2 School of National Defence Science and Technology, Southwest University
of Science and Technology, Mianyang, Sichuan 621010, China

3 School of Information Engineering, Southwest University of Science and Technology,
Mianyang, Sichuan 621010, China

1 Tel.: 86-816-2419010, fax: 86-816-2419010

1 E-mail: lvtao@swust.edu.cn


Received: 16 April 2013   /Accepted: 15 May 2013   /Published: 27 May 2013

Digital Sensors and Sensor Sysstems


Abstract: An energy-efficient adaptive clustering hierarchy EEACH in wireless sensor networks based on LEACH and LEACH-C is proposed in this paper. The main consideration is the LEACH cluster structure, each cluster is not uniform energy consumption; LEACH-C using a centralized algorithm can achieve better clustering, but do not contribute to the implementation of distributed. In EEACH, we analyzed the effects of different numbers of cluster member node on the network energy consumption; and re-planning time slice to balance the energy consumption of each cluster; and avoid the energy hole problem by reasonable cluster head selection algorithm. Its objective is to balance the energy consumption and maximize the network lifetime. Analysis and simulation results show that EEACH provides more uniform energy consumption among nodes and can prolong network lifetime compared to LEACH and LEACH-C.


Keywords: Wireless sensor network, Clustering protocol, EEACH, Energy-efficient


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