基于RTP速率控制单元的无线视频传输控制  

Transmission Control with RTP Rate Control Unit for Wireless Video Streaming

作　　者：高曼颖[1] 李明[2] 胡瑞敏[1] 

机构地区：[1]武汉大学计算机学院,湖北武汉430079 [2]武汉大学多媒体网络通信工程湖北省重点实验室,湖北武汉430079

出　　处：《计算机应用研究》2005年第5期217-218,221,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(60272097)

摘　　要：第三代无线移动通信中视频传输成为重要的业务。提出了一种有线网络与无线网络边界的RTP速率控制单元方案,实现了在无线流媒体传输中有效区分拥塞丢包与无线网络信道丢包。通过仿真实验证明,此方案能够较好地判断网络状态,合理地进行速率控制和鲁棒性控制,为无线视频传输提供较高的QoS保障。In this paper, the RTP rate control unit which lie midway between wired networks and wireless radio links is proposed. This scheme can efficiently distinguish quality degradation caused by network congestion from that caused by wireless radio link errors during the multimedia streaming transmission. Simulation results show this scheme can better decide the network condition and improve service quality by controlling the transmission rate and robustness against packet loss.

关 键 词：无线视频 RTP速率控制单元 拥塞控制 差错控制 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]