基于权重和适合因子的WSN节能分簇路由算法

Improving the data throughput, balancing nodes energy consumption and prolonging survival time in the sensor network is always the primary design goal on routing protocol. In this paper, being aimed at the drawbacks of LEACH algorithm, an algorithm that Weight and Fitness-based Energy-Efficient Clustering routing Algorithm for WSN(WF-EECA) is proposed . In the cluster-heads selection mechanism of LEACH, weight factor W is introduced as adjusting parameter to choose cluster-heads,and AHP (Analytic Hierarchy Process, the AHP) is also citied to work out weight coefficients; In the attribution mechanism of non cluster-head node ,the clustering cost factor C is introduced, considering the distance between nodes and cluster-heads,cluster-head's residual energy and distance from base station,etc.The simulation result shows that this algorithm effectively reduces the communication energy consumption and achives an obvious improvement on the network lifetime.