RTP快速匹配最佳发送速率算法的研究  

On the Algorithm of Optimal Transmitting Rate Available to be Matched Rapidly

作　　者：赵林亮[1] 廖先林[1] 田敏[1] 秦勇[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2008年第5期665-668,共4页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2003AA712032)

摘　　要：针对如何让RTP传输音视频流在尽量短的时间内让发送端达到最佳发送速率这一迫切需要解决的问题,提出了连续媒体流的快速匹配最佳发送速率算法.对RTCP中计算下一个RTCP RR分组的发送时间进行了改进,使得发送端通过RTCP反馈信息迅速探测当前网络的状况,并及时地调整自己的发送速率,尽量减少对多媒体传输稳定性的影响.模拟结果满足实时性的要求.To transmit the RTP-based audio/video stream as soon as possible so as to enable the sending terminal to get an optimal transmission rate is a problem to be solved urgently. An algorithm for optimal transmission rate that can be matched rapidly is therefore proposed for continuous medium stream. The algorithm improves the transmitting time for the next RTCP RR packet, which is required to compute in RTCP （real-time transport control protocol）, thus making the sending terminal search quickly the current situation of network through RTCP information feedback and readjust timely its transmission rate to lower its influence on the stability of multimedia transmission. Simulation meets the require of real-time requirement.

关 键 词：RTP RTCP 发送速率 最佳速率 状态转换 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]