一种无线自组织网上视频QoS保障方法  

QoS Guaranteed Video Communication on Wireless Ad Hoc Network

作　　者：武海生[1] 王贵锦[1] 王子秋[1] 林行刚[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电视技术》2010年第4期63-66,共4页Video Engineering

摘　　要：提出了一种基于GSM和无线自组织网混合网络结构下的服务质量(QoS)保障方法。首先客户端节点向GSM中心服务器上报本地链路可用带宽和拥塞状况;然后中心服务器根据上报信息分析数据业务整条路由上的拥塞状况,通知业务发起端调整发送速率或者重新选择路由;最后中心服务器通过对比新旧路由的可用带宽来确定业务是否更换路由。在包含10个客户终端和1个中心服务器的实验网络上,该方法获得了很好的调节效果,试验结果表明这种方法可以为无线自组织网络上的视频通信提供有效的QoS保障。A Quality of Service （QoS） guarantee method in video communication on Ad Hoc network is proposed in this paper, which is assisted by GSM controller. First, every user client reports their free bandwidth and congestion state to control server periodically. Then, server analyzes the route situation based on these messages, and notifies the source user client to change the data sending rate or find a new route. Finally, server determines to change the route or not by comparing the new route with the current used one. Experiments is implemented on a test bed which contains ten user clients and a control server, and get better controlling effect. Such results show that the proposed method can guarantee the QoS of video communication on Ad Hoc networks.

关 键 词：视频通信 无线自组织网络 服务质量 

分 类 号：TN919.85[电子电信—通信与信息系统]