稳定路径的Ad hoc网络QoS路由算法

移动Ad hoc网络中节点移动或能量耗尽会使得建立的QoS路径断裂而需重构路由,造成通信中断,对实时业务造成严重影响,提出了一种基于路径稳定性的QoS路由算法.该算法采用网络探测技术,综合考虑链路和节点稳定性,选择一条最稳定的路径进行通信,并实时监测路径状态变化,有效降低通信中断的概率.仿真表明,该算法有效改善了分组传送成功率、时延抖动等网络性能.

QoS routing algorithm of Ad hoc network based on path stability

In mobile Ad hoc networks the established QoS path is often disconnected because of the mobility or energy consumption of nodes,which results in communication discontinuity and adverse effect on real-time services,then a QoS routing algorithm based on path stability is proposed.This algorithm considers the stability of link and nodes on each path and tries to select the most stable path for communications,and it can supervise the state of path to reduce the probability of communication discontinuity.Simulations prove that this algorithm can effectively improve the network performances,such as the success rate of packet transmission,time jitter and so on.