无线传感器网络LEACH算法的改进

Improvement of LEACH in Wireless Sensor Networks

无线传感器网络是监控远程环境的工具之一,由于能量和存储空间的限制,其路由协议必须维持较小的路由信息并尽可能地减少能量消耗。基于经典的LEACH算法进行了改进,主要体现在对簇头选举的考虑上,把节点的剩余能量考虑到簇头的选举过程中去。最后对经典LEACH算法和改进后的算法进行仿真比较,证实改进后的算法很大程度上延长了网络的生存时间,同时减小了簇中节点的能量消耗。

Wireless sensor networks is one of the tools that scout and control the long-distance environment system. Due to the limitation of power and memory size, the router protocol of wireless sensor networks must maintain small router information and reduce the power usage as much as possible. The improvement of LEACH is based on power. Mended cluster head selection of the classic LEACH algorithm, and the node remaining energy is considered to selection of cluster head. Both of the algorithms were emulated. It is proved that network llfe time and energy consuming of node are improved greatly from meoding algorithm results.