关键词: 无线传感器网络 路由协议 LEACH 分簇算法

Abstract:

This paper analyzes the development of routing protocols in wireless sensor networks, studies the classical routing protocol and proposes an improved  algorithm called the Multipath Cluster-head-chain Based on Energy and Distance algorithm （MCBED）. The algorithm improves the method for selecting the   cluster-head, and selects the backup clusterhead on demands so as to form a multipath cluster-head-chain. The theoretical analysis and results of simulation demonstrate that this improved algorithm can suitably form clusters, assure the validity of the cluster-head-chain, save energy, balance the power  consumption over all nodes and obviously Drolong  the lifetime of the network.

Key words: wireless sensor network, routing protocol, LEACH, clustering algorithm