随着移动自组网络的快速发展, 对距离矢量按需路由协议(AODV)的服务质量提出了越来越高的要求。为了提升AODV在无线传感器网络通信中的表现, 文章提出了一种新型的基于AODV的多度量无线路由协议(MWR-AODV)。MWR-AODV综合考虑了对路由协议性能影响重大的最小跳数、剩余能量、能量流失率和网络节点密度这四个因素, 并且引入了一种低成本且高效的本地修复策略。通过Network Simulator-2仿真平台对MWR-AODV与标准AODV、DSDV协议的表现进行了仿真分析。结果表明, 所提出的MWR-AODV能为无线传感器网络提供更好的通信服务, 并且在均衡能量消耗延长网络寿命和平衡网络通信负载方面也有上佳表现。

With the rapid development of mobile ac-hoc network, higher demands are proposed on the service quality of ad-hoc On-demand Distance Vector routing protocol (AODV). To improve the performance of AODV, multi-metrics routing protocol with novel repairing mechanism (MWR-AODV)was proposed in this paper. MWR-AODV takes a comprehensive consideration on the factors of the least hops, residual energy, energy drain rate and network density which actually play key roles on the performance of routing protocols in route discovery phase, and import an efficient preemptive local repairing mechanism. Then the performance of the MWR-AODV protocol with the standard AODV and DSDV was compared on the simulation platform NS-2. Simulation results imply that the proposed MWR-AODV outperforms the AODV not only on Quality of Service(QoS) but also on balancing traffic load and prolonging the network life, especially in high-mobility or high density environment.