一种无线传感器网络路由协议LEACH的改进算法  

An Improved Algorithm of LEACH Routing Protocol in Wireless Sensor Networks

作　　者：李兰英[1] 刘昌东[1] 

机构地区：[1]哈尔滨理工大学计算机科学与技术学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2015年第2期75-79,共5页Journal of Harbin University of Science and Technology

基　　金：黑龙江省教育厅科学技术研究项目(12531107)

摘　　要：针对低功耗自适应集簇分层型协议LEACH(low energy adaptive clustering hierarchy)的节点生命周期短和能量消耗不平衡的问题,提出了一种LEACH协议的改进算法.算法的主要思想是考虑了节点的当前位置以及当前能量,从而可以使簇头的分布更加均匀,延长节点的生命周期.对改进后的LEACH协议和原LEACH协议进行仿真,结果表明改进后的协议在生存时间上提高了40.7%,并增加了数据的发送量,减少了节点的能量消耗.In order to solve the problems of LEACH （Low Energy Adaptive Clustering Hierarchy） nodes short life cycle and consumption imbalance, the paper proposes an improved algorithm of LEACH. The main idea of the improved algorithm is to consider the current position and the current energy of the node, which can be more evenly distributed cluster head, to prolong the life cycle of the node. A comparison is made of LEACH protocol with NEW - LEACH protocol. Simulation result shows that the improved protocol increases by 40. 7% in survival time and the received data but reduces node＇ s energy consumption.

关 键 词：无线传感器网络 LEACH协议 网络生存时间 NS-2仿真 能量均衡 

分 类 号：TP391.1[自动化与计算机技术—计算机应用技术]