LEACH(Low Energy Adaptive Clustering Hierarchy)是一种经典的无线传感网络路由协议，已得到了广泛的认可。文中基于LEACH 算法提出了一种改进的无线传感网络路由协议，利用了节点的属性，如距离、密度等，给予不同的节点以不同的簇首概率，让节点的簇首概率符合节点的实际情况，使簇首的选择更加合理。同时，增加传输选择，使部分节点将数据直接发送给基站，进一步减少能量消耗，从而延长无线传感网的寿命。仿真结果表明，该算法能更好地选出簇首和减少能量消耗，延长了整个无线传感网络的寿命。%LEACH,all known as Low Energy Adaptive Clustering Hierarchy,is a classic wireless sensor network routing protocol and has been widely recognized. In this paper,an improved wireless sensor network routing protocol based on LEACH algorithm is presented,uses the attributes of node,such as distance and density,giving its different cluster probability for different nodes to make a more reasonable distribution of cluster head node. And add transmission choice,to further reduce the energy consumption and extend the life of the wireless sensor network. The simulation results show that this algorithm can effectively select the clusters in all nodes and reduce the energy con-sumption,extending the life of wireless sensor network.
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