【摘要】 通过对无线传感器网络(Wireless Sensor Network,WSN)和AODV路由协议的特性进行分析,认为AODV协议(Ad-hoc On-Demand Distance Vector Routing)具有在无线传感器网络中应用的可行性,只是在网络能量效率方面考虑不多.本文详细给出了改进方案,利用协议头中原有的保留选项来存储平均路径能量,选路时采用最小路由最大路径能量策略,同时增加转发RREQ和发送RREP的延迟时间.用NS-2软件对改进后方案从吞吐量、延时、剩余能量等角度进行仿真,结果证明该方案可行.更多还原

【Abstract】 Based on the research on WSN(Wireless Sensor Network) and AODV routing protocol,the application of AODV routing protocol to WSN is feasible,but the method of AODV has low energy efficiency.This paper proposed a new mechanism of energy reduction for WSN based on AODV,by means of caching average path energy in the protocol header,choosing routes according to the strategy of maximum path energy and minimum route hops,lengthening the delay time of forwarding RREQ and sending RREP.The simulation by NS-2 was also presented in terms of throughput,time-lag and remaining energy.The numerical results show that the new scheme works well.更多还原