真实Ad hoc网络中多径视频传输的研究  

Study of Multipath Video Communications over Real Ad hoc Network

作　　者：窦志斌[1] 张连芳[1] 

机构地区：[1]天津大学电信学院计算机系,天津300072

出　　处：《计算机工程与应用》2006年第10期136-139,共4页Computer Engineering and Applications

基　　金：中兴通讯无线多媒体项目;CiscoCCRP基金资助

摘　　要：无线Adhoc网络拓扑结构的频繁变化使得如何在多变的拓扑结构中快速找路,以及路径失效后的快速重新找路成为无线Adhoc网络中路由协议研究的主要目标之一。随着无线Adhoc网络带宽的增加,无线Adhoc网络中的视频业务逐渐变得现实起来,因此也成为了研究的重点,但是视频业务与普通业务比起来,在分组到达的延迟上要求很严,因此以上两个方面无疑是一对矛盾。论文重点讨论了在动态源路由协议(DynamicSourceRouting,以下简称DSR)基础上,视频业务所带来的诸多问题,结合DSR路由模块的试验床提出一种解决方法,并把改进后的DSR协议与原始的DSR协议在一些性能参数上作了分析与比较。Fast routing in wireless Ad hoc network and route recovery after route broken has been recently the hot researching field in wireless routing protocol.Due to increasing bandwidth of Wireless Ad hoc network,video communications in Ad hoc network is becoming available,but it＇s also challenging.Compared with normal traffic,video traffic has strict requirements in packets receiving delay which is conflict with wireless routing protocol and the variability topology of wireless Ad hoc network.Based on dynamic source routing protocol,this article firstly focuses on problems of video communication in Ad hoc network and then presents some solving methods with DSR routing protocol module.Finally,we analyze the experiment＇s result with DSR protocol and the Modified DSR protocol.

关 键 词：无线AD HOC网络 动态源路由 视频传输 多径 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]