无线传感器网络能量改进路由算法研究

基于能量多路径路由协议和LEACH路由协议的大多数成簇算法是概率选择，在一定程度上会加速局域内节点能量过早消耗完，影响网络的性能。结合能量感知多路径和LEACH路由算法，提出一种能量高效的改进路由算法，从节点能量消耗角度出发，根据节点与汇聚节点之间的距离、网络中所有存活的节点到汇聚节点的平均距离以及该节点当前剩余能量值来确定簇头选择的能量阈值，并依据该值进行路由选择。仿真实验结果表明，该算法能够提高网络整体性能，有效延长网络节点的生命周期。

Energy efficient routing protocol for wireless sensor network

LEACH routing protocol for wireless sensor networks and a number of its improvements are proposed .Most of them use random selection of cluster‐head node election .It is found that node’s energy consumption increases with its more random selection .Then performance of the network is affected because node’s energy consumed quickly .This paper proposed an improved routing algorithm that determines threshold of cluster‐head node according to the node’s present remaining energy ,distance to all surviving nodes and average distance between the node and convergence node . Routing is done by the threshold . Simulation shows that network performance and life cycle could be improve effectively .