采用改进算法对无线网络节能优化仿真研究  

Research and Similation of an Improved Algorithm Based on LEACH Algorithm

作　　者：吉正洵 江冰[1,2] 李丽芳[1,2] 黄鹍[1,2] 

机构地区：[1]河海大学物联网工程学院,江苏常州213022 [2]常州市传感网与环境感知重点实验室,江苏常州213022

出　　处：《计算机仿真》2015年第6期266-270,共5页Computer Simulation

基　　金：常州市科技支撑-工业项目资助(CE20130043)

摘　　要：研究无线传感器网络(WSNs)节能问题。传统分簇路由算法LEACH在均衡节点能耗方面表现不够理想。为提高网络寿命,提出一种能耗均衡的分簇多跳路由算法。在簇头选举阶段,新算法利用能量阀值和节点剩余能量将节点归类进标准区和警告区两个区域,使得位于不同区域的节点以不同的概率当选为本轮簇头节点,从而保护能量相对较低的节点。在数据稳定传输阶段,簇头与基站之间采用单跳与多跳相结合的通信方式,降低了能量开销。Matlab仿真结果表明,相比于LEACH算法,提出的新算法有效地均衡了网络能量消耗,延长了网络生命周期。In this paper, the energy saving problem of Wireless Sensor Networks （WSNs） is researched. A multi - hop routing algorithm of energy balancing cluster is proposed. In the stage of cluster head nodes election, a new al- gorithm classifies nodes into two areas including standard area and warning area by using energy threshold and remai- ning energy of nodes, which makes nodes located in different areas have different probabilities of being elected as cluster head nodes, so that nodes which have relative low energy can be protected. In the stage of data stable trans- mission, cluster heads and the base station use combined single - hop and multi - hop communication mode, which reduces energy costs. Simulations in Matlab reveal that, in contrast with LEACH, the new algorithm proposed in this paper can balance energy consumption of network effectively and prolong the network life.

关 键 词：无线传感器网络 能耗均衡 剩余能量 多跳 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]