【摘要】 在无线Ad Hoc网中,判断路径优劣的度量参数主要有跳数、延迟、能量等,常常导致过度使用中心节点,引起网络拥塞。针对这一问题,提出了一种基于价格感知的多目标优化按需路由协议。该协议以价格为主要度量指标,采用分层的体系结构以获得全网一致的拓扑视图,消除分布式预测带来的不一致性。仿真结果表明,该协议提高了分组投递率并降低了端到端平均时延,在动态移动环境下具有较好的稳定性。更多还原

【Abstract】 In wireless Ad Hoc networks main routing protocol parameters are hops,delay and energy etc,which lead to overload of central nodes and can cause network congestion.An on-demand routing protocol based on price awareness was proposed to deal with the problem.This protocol chooses price as the main parameter and uses cross-layer architecture.The method can obtain the same view of the whole network and can eliminate inconsistency of distributed prediction.The simulation results show that it improves the packet delivery fraction and reduces the average end-to-end delay and has good stability.更多还原