军用领域的WSN系统由于部署环境特殊, 其节点能量是决定整个系统寿命的关键, 低能量自适应聚类路由协议(LEACH)是一种专为无线传感器网络设计的节能分层路由协议, 具有延长传感器网络生命周期的作用。通过对簇头节点的选取进行研究, 提出在簇头节点和普通节点之间进行双向选取, 同时, 针对节点数据分发过程, 提出了一种综合考虑数据量和节点间距离的多跳数据分发方式, 并从数学关系上证明此种分发方式更节能。最后, 对整个协议进行Matlab仿真, 从实践上证明了改进后的LEACH协议在节能方面有较大提高。

Because of the special deployment environment of the WSN system in military field, the node energy is the key factor determining the life of the whole system.Low Energy Adaptive Clustering Hierarchy (LEACH) protocol is a specially designed energy saving hierarchical routing protocol for wireless sensor network, which can prolong the lifetime of the sensor network.By analyzing the selection of cluster head nodes, we proposed to select between the cluster head nodes and ordinary nodes.In view of the node data distribution process, we proposed a multi-hop data distribution mode with comprehensive consideration of the distance between nodes and the quantity of data, and proved mathematically that this distribution mode is more energy-efficient.Finally, Matlab simulation was made to the whole protocol, which proved practically that the improved LEACH protocol is more efficient on energy saving.