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鉴于Ad Hoc网络的高移动性,选择一条稳定的路径进行通信尤为重要。文章借鉴AODV按需路由的思想,提出了基于路径稳定性的路由算法PSR(Path Stable based on-demand Routing),通过引入路径有效因子PEF(Path Efficiency Factor)来考虑可行路径的稳定性问题,增强了所选路径的稳定性,减少了由于节点运动引起的链路断裂次数。性能分析和仿真结果表明,与AODV相比,PSR减少了开销,提高了效率,使得算法的性能得到了提升。
Given the high mobility of Ad Hoc networks, it is especially important to choose a stable path for communication. In this paper, the idea of AODV on-demand routing is introduced and a path-based routing algorithm, PSR (Path Stable based on-demand Routing), is proposed to consider the stability of the feasible path by introducing the Path Efficiency Factor (PEF) The stability of the selected path reduces the number of link breaks caused by node motion. Performance analysis and simulation results show that compared with AODV, PSR reduces the overhead and improves the efficiency, which improves the performance of the algorithm.