面向能量异构传感器网络的分簇路由算法
首发时间:2012-03-09
摘要:本文提出平衡能耗分簇路由算法BECC(balanced energy consumption clustering algorithm),改进了LEACH协议的簇头选举方式,以适应能量异构传感网,延长网络生命周期。BECC簇头选举中,引入极化能量因子调整节点成为簇头的概率,使得簇头数的期望值为理论最佳簇头数的情况下,高能量节点具有更高的概率成为簇头,低能量节点不成为簇头。仿真结果表明,与目前典型的分簇算法相比,BECC算法在能量异构网络下具有更长的网络生命周期和更大的网络有效数据量。
关键词: 计算机应用; 无线传感器网络 分簇算法 异构环境
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Clustering Routing Algorithm for Heterogeneous Energy Wireless Sensor Networks
Abstract:In this paper, a ba la nced energy consumption clustering algorithm (BECC) is proposed. This new scheme is a cluster-based a lgorithm designed for heterogeneous energy wireless sen sor networks. A polarized energy factor is in troduced to adjust the probability with which each node may become a cluster head in 1be election of the new clustering scheme. Under the condition 1ba t the expected number of cluster heads in the network preserves the theoretical optimal number, BECC makes sure that nodes wi1b higher residua lenergy will become cluster heads with higher proba bilities while nodes with lower residual energy will not become cluster heads. Simulation results show tha t this new scheme provides longer lifetime than the classical clustering a1gori1bms including LEACH a nd other improved a lgorithms in heterogeneous networks, and BECC also rea ches larger amoun t of messages received at the sink.
Keywords: computer application WSN clustering algonthm heterogeneous environment
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