无线传感网自适应能量驱动簇头轮换算法研究  

An Energy-Driven Adaptive Cluster Head Rotation Algorithm for Wireless Sensor Networks

作　　者：黄河清[1] 沈杰[1] 姚道远[1] 马奎[1] 刘海涛[1] 

机构地区：[1]中国科学院上海微系统与信息技术研究所无线传感网与通信重点实验室,上海200050

出　　处：《电子与信息学报》2009年第5期1040-1044,共5页Journal of Electronics & Information Technology

基　　金：中科院知识创新工程重要方向项目(KGCX2-YW-110-2)资助课题

摘　　要：分簇结构是大规模无线传感网(WSN)的一种有效的拓扑管理方法。在这种结构下,由于簇头(Cluster Head,CH)节点的能耗速率远高于簇成员节点(Cluster Member,CM),需要做簇头轮换以平衡网络能耗。该文分析了基于能量驱动的簇头轮换策略,并提供一种基于簇头节点实时负载来估计其启动轮换的能量阈值的自适应簇头轮换算法(Adaptive Cluster Rotation Algorithm,ACRA)。仿真结果表明,与现有算法如LEACH,EDAC等比较,ACRA算法最少化簇头轮换次数,延长了网络生存时间。Cluster-based Topology is an energy-efficient topology control method in large-scale wireless sensor networks. The cluster head depletes energy more faster than cluster member and the rotation of cluster head is needed to balance the energy consumption for the whole network. In this paper, ACRA is presented, which rotation energy thredhold is estimated using cluster head real-time energy load. The simulation result show that comparing with LEACH and EDAC, ACRA minimizes the rotation times, prolongs the network lifetime.

关 键 词：无线传感网 分簇 轮换 能量驱动 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]