一种改进的无线传感器网络分簇路由协议  

An Improved Clustering Routing Protocol for Wireless Sensor Networks

作　　者：顾相平[1] 孙彦景[1] 钱建生[1] 李丽[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《微电子学与计算机》2009年第3期34-37,41,共5页Microelectronics & Computer

基　　金：国家"八六三"计划项目(2007AA06Z114);江苏省高新技术重大项目(BG2007012);中国矿业大学科技基金项目(OC080303)

摘　　要：针对无线传感器网络中节点能量受限的特征,提出了ILEACH(improved-LEACH)分簇路由协议,达到延长网络生存时间的目的.该分簇路由协议在簇头选取时,充分考虑了节点的剩余能量;簇形成时利用了距离阈值的约束来优化分簇方案;数据收集阶段,根据节点的权值在簇头节点之间建立到基站的路由树.利用NS2仿真软件对LEACH和ILEACH协议进行仿真、比较,结果显示ILEACH具有良好的性能.This paper presents clustering routing protocol,namely improved-leach based on the characteristic of limited energy for wireless sensor networks to prolong the lifetime of networks.It takes nodes residual energy into consideration during the process of cluster heads being elected.The constraint of distance threshold is used to optimize cluster scheme.Furthermore,it also sets up the routing tree based on cluster heads weight.We simulate and analyze LEACH and improved-leach in NS2.The results show that the ...

关 键 词：无线传感器网络 分簇 路由协议 生存时间 

分 类 号：TN929.5[电子电信—通信与信息系统]