无线传感器网络中LEACH协议的节能改进算法

An improved energy-saving algorithm based on leach in wireless sensor networks

分析了低功耗自适应分簇路由协议(LEACH)算法,对算法中簇头选举数目的随机性做了改进并且在簇头选举时加入了对节点剩余能量的考虑,同时提出采用欧式平面上两条曲线交叉概率很大的思想,在簇头与基站之间建立多跳链路,从而解决了原协议中簇头与基站单跳通信能量消耗过大的问题.性能分析和仿真实验表明:改进的协议有效均衡了节点能耗,提高了网络寿命.

Analyzes the low energy adaptive clustering hierarchy(LEACH) algorithm and made improvements in the election of cluster head for the randomness of the number.It also took the residual energy of node into consideration in the election of cluster head.The algorithm establishes multi-hops routing path between cluster heads based on the idea that it has big probability that two curves will cross on the Euclid plane.It solves the problem of an excessive consumption of energy when the cluster heads communicate with the base station in the original protocol.The performance analysis and simulation experiment indicate that our protocol can effectively balance the energy consumption of the sensor nodes and extend the network lifetime.