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针对AODV协议只选用跳数最小进行选路的缺陷,提出一种新的基于组合量度的路由协议(AMAODV)。该协议综合考虑路由的跳数、节点间链路的有效期和可用带宽3种因素,通过层次分析的方法判定上述3种因素对链路传输的影响,提出了组合度量函数,借助组合度量函数的计算来选择一条具有较小度量值的路径进行传输。仿真结果表明:AMAODV协议在适应高速移动的网络环境上具有一定优势,并能降低网络时延和增加网络吞吐量。
Aiming at the defect that AODV only chooses routing with minimum hop count, a new AMAODV protocol is proposed. This protocol considers three factors of the number of hops, the effective period and the available bandwidth of the links between nodes, and determines the impact of the above three factors on the link transmission by the method of AHP. A combined metric function is proposed, Calculate to select a path with a smaller metric for transmission. Simulation results show that AMAODV protocol has certain advantages in adapting to high-speed mobile network environment, and can reduce network delay and increase network throughput.