无线传感器网络中改进的低功耗自适应集簇分层型协议(LEACH)路由算法  

Improved Low Energy Adaptive Clustering Hierarchy( LEACH) Routing Algorithm in the Wireless Sensor Networks

作　　者：邓建球[1] 郝翠[2] DENG Jianqiu;HAO Cui(Weapon Science and Technology Department, Naval Aeronautical Engineering Institute, Yantai 264001, P.R.China;Electronic Information and Control Experimental Teaching Center, Beijing Information Science and Technology University, Beijing 100101, P.R. China)

机构地区：[1]海军航空工程学院兵器科学与技术系,烟台264001 [2]北京信息科技大学电子信息与控制实验教学中心,北京100101

出　　处：《科学技术与工程》2017年第36期200-204,共5页Science Technology and Engineering

基　　金：国家自然科学基金(61674016)资助

摘　　要：针对环境监测无线传感器网络中由于监测范围广,引起距离客户端较远的节点耗能大进而先失效,网络覆盖范围随运行时间而快速缩小的问题,改进了LEACH路由算法。充分利用网络节点的冗余度,通过让一部分节点先睡眠再唤醒的方式,来取得更大的网络覆盖范围。分别应用LEACH算法和改进的算法对同一配置的环境监测无线传感器网络进行路由测试。仿真结果表明:改进算法拥有更低的网络能耗、更长的网络生存时间和更大的网络覆盖范围。此改进算法为工程实践提供了解决路由问题的新思路。The monitoring range of the wireless sensor networks is large.This will cause the sensor nodes which are far away from the client out of energy quickly.Aiming at the network coverage shrinks quickly,the LEACH algorithm is improved.The improved algorithm gets bigger network coverage through making some nodes sleep first and then awake.Testing the same environmental monitoring wireless sensor networks using LEACH algorithm and the improved algorithm,the simulation results show that the improved algorithm cause lower network energy consumption,longer network lifetime and bigger network coverage.This improved algorithm offers new ideas for the engineering practice.

关 键 词：无线传感器网络 路由算法 环境监测 LEACH 

分 类 号：TN915.04[电子电信—通信与信息系统]