基于LEACH的WSN簇头优化策略  

Cluster Head Optimization Strategy for WSN Based on LEACH

作　　者：陈云峰[1] 范兴刚[1] 许博[1] 

机构地区：[1]浙江工业大学计算机科学与技术学院,杭州310012

出　　处：《计算机工程》2011年第22期82-84,87,共4页Computer Engineering

基　　金：浙江省自然科学基金资助项目(Y1080374);浙江省教育厅基金资助项目(20070184)

摘　　要：针对无线传感器网络(WSN)能量和节点分布不均匀的问题,提出一种基于低功效自适应集簇分层(LEACH)协议的WSN簇头优化策略。在二次簇头选择机制下,对保护性能最差的节点进行优化,从大于簇内平均能量的节点中,寻找距离簇内性能最差的节点,将与其最近的节点选为簇头,由此形成簇头间多跳最优通信方式。实验结果表明,该策略能减少节点能量消耗,延长网络生命周期。This paper analyzes the shortcomings of uneven distribution of energy and nodes for Wireless Sensor Network（WSN） and proposes a cluster head optimization strategy for WSN based on Low Energy Adaptive Clustering Hierarchy（LEACH）.In the secondary cluster head selection mechanism,it optimizes the worst performance cluster head nodes,in a certain radius of the region to find the node which energy is greater than the average within the cluster,and selects the node nearest the worst performance node as the cluster head forming a optimal multi-hop communication among the cluster head.Experimental results show that this strategy can reduce node energy consumption and extend the network life cycle.

关 键 词：无线传感器网络 分簇策略 簇头选择 最小簇头 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]