A Novel Method of Dynamic Rate Adaptation For Streaming Media Server

摘要：

Dynamic rate adaptation for streaming media is a key technology of multimedia communication in mobile network. Except for the method adopted custom-made private rules with less popularity, the present prevalent ways based on control threshold is easy to result in rate inaccurately adjusted and based on network bandwidth arises adjustment surging. The method proposed in the paper determines rate-switched direction and predicts undetermined sending-rate in server by setting threshold and analyzing the parameters in RTCP RR packets and RTCP NADU packets. Relying on multiple rate-switched direction and sending-rate, together with the current usable bandwidth computed through the parameters in RTCP RR packets, decision-maker gets the final sending-rate and rate-switched direction. Experiment results show that the benefits of this method are anti-surging, predicting bandwidth, responding to network diversification rapidly and controlling overflow and underflow of buffer effectively.

关键词： dynamic rate adaptation RTCP RR packet RTCP NADU packet

作者: TONG Yala LI Yuanxiang GONG Xiaoming

作者单位: Computer School,Wuhan University,430070 Wuhan,China;School of Science,Hubei University of Technology State Key Laboratory of Software Engineering,Wuhan University,430072 Wuhan,China Wuhan Research Institutes of Posts & Telecommunications,430074 Wuhan,China

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）