LEACH协议的簇首多跳与选择优化

Optimization of Cluster Head Multihop and Selection in LEACH

针对WSN层次型路由协议中簇首单跳传输数据至汇聚节点、而部分簇首因传输距离过长导致能量过早耗尽从而影响整个网络寿命问题,提出了基于剩余能量对簇首优化选择和簇首至汇聚节点间多跳数据传输的改进算法.对首个节点死亡轮数和能量图像方面进行了分析和仿真,结果表明该改进算法可使全网负载更加均衡,并进一步延长了网络整体寿命.

An improved algorithm in WSN hierarchical routing protocols was put forward,which considered the residual energy of cluster head selection and multi-hop data transmission from cluster heads to the sink node,to solve the problems of some cluster heads＇ premature depletion,which affect the whole life of the network,caused by part of the cluster heads over long distances with single hop data transmission to the sink node.Analyses and the simulations were conducted on the first node＇s death round number and the energy image.The results show that the improved algorithm can balance the network load better and extend the whole network life,compared with the traditional algorithms.