一种带有能量自补给节点的异构传感器网络分簇路由算法

摘要

Aiming at the problem of short network lifetime and unbalanced energy consumption in existing clustering routing algorithms,this paper presented a new clustering routing algorithm for heterogeneous wireless sensor networks with energy self-supplying nodes.Considering that energy supply is not stable in actual environment,an energy-balanced cluster head election mechanism and a multi-hop inter-cluster routing were designed in heterogeneous wireless sensor networks according to the residual energy and current energy supply states of nodes.Simulation results show that the proposed algorithm is more effective to extend the network life cycle and balance the energy consumption of whole network than the traditional clustering routing algorithms (LEACH and SEP) with the same energy replenishment mechanism and other clustering routing algorithms based on energy harvesting (PHC and EBCS).%针对现有无线传感器网络分簇路由算法的网络生命周期短、能量消耗不均衡等问题,结合节点的能量采集技术,提出了一种带有能量自补给节点的异构传感器网络分簇路由算法.考虑到实际环境中节点能量补给不稳定,根据节点的剩余能量和当前能量自补给状态,设计了能量均衡的簇头选举机制和簇间多跳机制.仿真结果表明,在延长网络生命周期和均衡全网能量消耗方面,该算法优于采用相同能量补给规律的传统分簇路由算法(LEACH算法和SEP算法)和其他基于能量自补给的分簇路由算法(PHC算法和EBCS算法).