一种动态簇头比的无线传感器网络多跳路由算法  

A Dynamic Percentage of Cluster-Head and Multiple-hops Routing Algorithm in Wireless Sensor Network

作　　者：廖明华[1,2] 张华[1] 

机构地区：[1]湖南财政经济学院信息管理系,长沙410205 [2]湖南大学信息科学与工程学院,长沙410082

出　　处：《微计算机信息》2011年第7期177-178,101,共3页Control & Automation

摘　　要：通过分析LEACH协议的特点,提出了一种新的改进算法,网络根据存活的节点数动态改变簇头个数占节点总数的比例,并且根据数据传输的距离分别采用一跳和多跳的方式发送数据。仿真实验表明,新的算法在延长网络生命周期、单位能耗数据发送量、产生簇头个数、死亡节点的分布等方面均优于LEACH协议。On the basis of the characteristics of LEACH, an improved algorithm was proposed in this paper. The percentage of cluster-head nodes was changed according the number of active nodes in the network. All nodes used direct or multiple -hops way to transmit data depending on the different distance. The simulation results demonstrated that the algorithm prolonged the network lifetime, the more packets were transmitted in case of one joule was consumed, the number of cluster -heads was more similar per round, and dead nodes were evenly distributed in the network comparison with LEACH protocol.

关 键 词：无线传感器网络 LEACH协议 簇头选举概率 多跳 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]