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LEACH是针对无线传感器网络设计的低功耗自适应分簇聚类路由算法。作为一种WSN路由协议,因为其优秀的节能效果和其简单的规程得到了广泛的认可。但是LEACH簇首算法存在簇首开销大、簇首没有确定的数量和位置等不足,而在成簇后的稳定阶段。节点通过一跳通信将数据传送给簇首,簇首也通过一跳通信将聚合后的数据传送给基站,这样会造成簇首节点负载过重,针对LEACH算法的不足,本文在LEACH协议的基础上提出了改进,NS2模拟实验表明改进后的算法减少了簇首节点能量的消耗,延长了传感器网络的寿命。
LEACH is a low-power adaptive clustering clustering routing algorithm designed for wireless sensor networks. As a kind of WSN routing protocol, it is widely accepted because of its excellent energy-saving effect and its simple procedure. However, the LEACH cluster head algorithm has the following problems: large cluster head overhead, no definite number and location of cluster heads, and the like, but in the stable phase after clustering. The node transmits the data to the cluster head through one-hop communication. The cluster head also transmits the aggregated data to the base station by one-hop communication, which will cause the load of the cluster head node to be overloaded. In view of the shortage of the LEACH algorithm, The proposed NS2 simulation experiment shows that the improved algorithm reduces the energy consumption of the first cluster node and prolongs the life of the sensor network.