一种基于局部能量消耗最优的分簇协议

A Clustering Protocol Based on Minimal Local Energy Consumption in WSN

在无线传感器网络中,先确定簇头分布方式、后考虑网络能量消耗的分簇方式降低了网络能量消耗的有效性。针对减小能耗问题,提出了一种基于局部能量消耗最优的非均匀分簇协议。在该协议中,各区域根据与基站的距离安排簇头分布,折中簇头能量消耗,使得簇内所有节点的平均能量消耗最小。仿真结果表明,相比现有的分簇协议,协议生成的簇头数稳定集中并且将网络生命期延长了20.7%到43.9%。这说明按照最小化簇内节点平均能量消耗的原则安排簇头分布,可以有效减少和均衡网络中节点的能量消耗。

In senor networks, current clustering protocols consider the cluster heads distributing first and the network energy consumption second, which reduces the efficiency of network energy consumption. An uneven clustering protocol based on minimal local energy consumption is proposed in this paper. Cluster head is distributed based on the distance between the region and BS, so energy consumed by cluster head and communication cost in a cluster is compromised to minimize average energy consumption in a cluster. Thus cluster heads are distributed unevenly in the region. Simulation results show number of cluster heads is steady and centralized, and network lifetime is prolonged by 20. 7% to 43.9% compared to current protocol. This protocol reduces and balances energy consumption efficiently.