基于最小能耗的协作路由算法

Cooperative routing algorithm based on minimum total energy consumption

为延长无线传感网络的网络生命周期,提出一种基于最小能耗的协作路由方案。在最小能耗路由算法的基础上,在每一跳的数据传输过程中,综合考虑传感节点的剩余能量、信道状态信息进行协作节点的选取,在满足下一跳接收端的误比特率要求下,给出其功率分配方案。理论分析和仿真结果表明,在相同的实验场景下,该方案在平衡网络中节点的能耗和提升网络生命周期方面均优于传统非协作路由算法和基于最小路径损耗的协作路由算法。

A cooperative routing algorithm based on minimum total energy consumption(cooperative minimum total energy consumption routing,CMTE)was presented to extend the network lifetime of wireless sensor network.The algorithm was based on the minimum total energy consumption routing algorithm(MTE).In the transmission process of each hop,the remaining energy of nodes,the remaining threshold,channel state information(CSI)were taken into consideration while selecting cooperative nodes.A power allocation scheme was proposed confined to the bit error rate(BER)requirements.In the same experimental environment,theoretical analysis and simulation results show that this algorithm performs more effectively on balancing energy consumption of the network and enhances the network lifetime compared with traditional non-cooperative algorithm and CAN(cooperation along the minimum energy noncooperative path)algorithm.