能量均衡的无线传感器网络容错分簇优化策略  

Optimize Energy-balance Fault-tolerance Clustering Scheme in Wireless Sensor Networks

作　　者：林力伟[1] 许力[1] 黄榕宁[1] 叶秀彩[1] 

机构地区：[1]福建师范大学网络安全与密码技术重点实验室,福建福州350007

出　　处：《福建师范大学学报（自然科学版）》2009年第5期40-44,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金资助项目(2008J0014;2007J0316);福建省教育厅基金资助项目(JA07030)

摘　　要：平衡簇头能耗均衡对延长网络的生存时间有重要意义.算法UFTCO(Uneven Fault-Tolerance Cluster Optimize)利用无线传感器网络运行过程中相邻簇簇头能量消耗速度信息来调整簇的大小,并且从能耗大的簇"驱逐"一些节点到能耗低的簇从而平衡簇头之间的能量消耗.通过引入容错机制,提高了网络的鲁棒性.仿真表明算法UFTCO能有效地平衡簇头间的能量消耗,较好地解决"热区"问题,延长网络生存时间.Balancing the energy consumption of the cluster head in wireless sensor networks is significant to prolong the lifetime of networks. In order to balance the energy consume among the cluster heads in the network, the algorithm UFTCO （Uneven Fault-Tolerance Cluster Optimize） based the difference of energy consume information between the neighbor cluster, let the cluster whose energy consume is higher drive some nodes out, and these nodes joined the other cluster whose energy consume is lower. There is a fault-tolerance scheme in the algorithm UFTCO, so the algorithm can improve the networks robustness as well. The simulation of performance indicated that the proposed algorithm can balance the cluster heads＇ energy consumption, and prolong the network＇s life time.

关 键 词：无线传感器网络 驱逐 能量平衡 鲁棒性 非均匀分簇 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]