摘要
无线传感器网络中由最大连通度生成簇算法得到的簇结构，各簇头节点间负载不均衡，能量消耗较快。对止，用剩余能量和发射功率构建综合权值来决定节点竞选簇头的可能性，并通过设计的拓扑维护概率适当性的对网络拓扑进行局部调整，形成了基于概率触发的负载均衡区域竞选分簇算法，有效地延长了网络生命期。
In wireless sensor networks,the load of cluster headers formed by maximum link degree clustering algorithm is always high and sensor nodes are unbalanced distributed.Considering these disadvantages,depending on leaving energy and transmitting power to decide whether sensor is to be the cluster header. And a topology maintenance probability is designed to adjust local network topology periodical- ly.Thus a new type of load balanceing arithmetic is presented based on probability region elected.The problem that sensors died ahead of schedule because of forwarding data is solved effectively. The lifetime span of networks is prolonged.
作者
盛志方
陶滔
田海涛
SHENG Zhi-fang,TAO Tao,TIAN Hai-tao （Department of Computer Science and Technology, University of South China,Hengyang 421001, China）
出处
《电脑知识与技术》
2009年第12期9819-9821,共3页
Computer Knowledge and Technology
关键词
无线传感器网络
簇
概率触发
负载均衡
wireless sensor networks
cluster
probability triggering
load-balancing
