WSN中低功耗路由协议LEACH的一种改进方法

在无线传感器网络中,针对节点有限的能量资源,路由的设计必须以节能为重要目标。这对整个网络的生存时间至关重要。对LEACH协议进行了深入的分析。针对LEACH协议在簇头选择算法上过大的随机性以及分簇次数过多的问题进行了优化。在簇头选择过程中加入能量影响因素,使剩余能量大的节点更有机会当选为簇头。另外在稳定运行过程中也加入了能量阈值防止下一轮分簇的过早发生。仿真结果表明,改进后的算法相比原LEACH算法能有效地平衡网络整体的能量消耗,延长网络的生存时间。

An improved method in LEACH of a low-power routing protocol for WSN

In wireless sensor networks,with the limitation of nodes' energy resources,energy conservation must be paid for an important objective for the routing design,which is crucial to the survival time of the entire networks.LEACH protocol in depth is analyzed,and proposed some optimization measures.According to the problems of too much randomness in cluster-heads selecting and too large clustering frequency,the energy factors in the process of cluster-heads selecting is joined to make the chance of nodes with la...