多级能量异构传感器网络能量有效的路由算法

Energy-efficient routing algorithm for multi-level energy heterogeneous sensor networks

能量异构在无线传感器网络中普遍存在,由于多级能量异构无线传感器网络节点的初始能量在一定范围内随机分布,为了能有效地利用节点能量的异构性降低网络能耗、延长网络稳定周期,提出一种适用于能量异构环境的多级能量异构传感器网络能量有效的路由算法。节点根据其当前剩余能量与网络平均能量的比值决定其成为簇首的概率,通过调整节点的阈值,并基于此决定是否成为簇首,且在簇间采用多跳路由协议。仿真结果表明多级能量异构传感器网络能量有效的路由算法可以有效地均衡网络能量消耗,延长网络稳定周期。

Energy heterogeneity is ubiquitous in wireless sensor networks,because node initial energy of multi-level energy-heterogeneous wireless sensor network distributes within the scope of certain and randomly,in order to economize heterogeneous nodes energy and extend network stability period,this paper proposed an energy-efficient routing algorithm for multi-level energy-heterogeneous sensor networks which is better for heterogeneous environments.The node determines the probability to become the cluster head in accordance with its remanded energy and the ratio of the remanded energy to average energy.By adjusting its threshold value,the node decided whether to become a cluster head and used multihop routing protocol among clusters.Simulation results show that energy-efficient routing algorithm for multi-level energy heterogeneous sensor networks can balance network energy consumption efficiently and extend network stability period.