无线传感器网络能量均衡分簇路由算法的改进

摘要

The load energy is discordance in existing clustering algorithms, thus the overall survival time of wireless sensor network is decreased. The basic concept, clustering mechanism and the communication mode of classic clustering algorithm LEACH are analyzed. By adopting modifying the threshold, the load energy discordance is improved, and the network simulation software NS2 is adopted to do the simulation. The result of simulation shows that the energy consumption of nodes can be equilibrated, and the clustering is more reasonable, thus the lifecycle of network is effectively extended.%针对现有的分簇算法存在因负载能量不均衡而缩短无线传感器网络整体生存时间这一问题,分别对经典分簇算法LEACH的基本思想、分簇机制和簇的通信方式等作了分析.采用修改门限值的方法,对负载能量不均衡的问题进行了改进,并采用网络仿真软件NS2进行仿真分析.仿真结果表明,改进后的算法能够均衡节点的能耗,使分簇更加合理,并有效地延长了网络的生命周期.