一种基于节点能量与距离的备份簇头路由算法

A backup cluster head routing algorithm based on node energy and distance

针对LEACH算法随机生成簇头,导致节点能量消耗大,簇头节点过早死亡的问题,提出了CLED算法。该算法优化了簇头选择机制,考虑了距离和能量的因素。在成簇阶段,普通节点选择簇头加入时,引入了复合距离的权值因子,不仅考虑节点与簇头的距离,而且考虑簇头的剩余能量。仿真结果表明,文中提出的CLED算法降低了节点能量消耗速率、提高了整个网络的寿命。

In order to treat the problems of the blindness of cluster head selection and the imbalance of energy consumption in the cluster in LEACH,the CLED algorithm is proposed. The cluster head selection mechanism is optimized by the algorithm,and the distance and energy factors are considered.In the clustering phase,the common nodes join the cluster head selection,introduced the weight factor composite distance,considering not only the distance between nodes and cluster,but also consider the residual energy of cluster head. The simulation results show that the proposed CLED algorithm can reduce the node energy consumption rate and improve the lifetime of the whole network.