稳定路径的Ad hoc网络QoS路由算法  

QoS routing algorithm of Ad hoc network based on path stability

作　　者：苗建松[1] 郑凤[1] 丁炜[1] 

机构地区：[1]北京邮电大学信息与通信工程学院,北京100876

出　　处：《哈尔滨工业大学学报》2009年第7期131-134,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(60772109);国家高技术研究发展计划资助项目(2008AA01A322)

摘　　要：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.In mobile energy consumption Ad hoc networks the established QoS path is often disconnected because of the mobility or 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.

关 键 词：移动AD hoe网络 路径稳定性 动态源路由 服务质量 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]