Supporting interactive video-on-demand with adaptive multicast streaming
Publication in refereed journal

香港中文大學研究人員

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摘要Recent advances in multicast video streaming algorithms have opened up new ways to provision video-on-demand services to potentially millions of users. However, the spectacular efficiency of multicast streaming algorithms can only be realized by restricting or even prohibiting interactive playback control. Experiments reveal that the performance of current state-of-the-art multicast streaming algorithms will degrade significantly even at very low levels of interactivity (e.g., one control per five users). This study tackles this challenge by investigating the fundamental limitations of multicast streaming algorithms in supporting interactive playback control and presents a general solution-static full stream scheduling (SFSS)-which can be applied to many of the existing multicast streaming algorithms to substantially improve their performance when interactive playback control is to be supported. Moreover, to solve the problem of optimizing the algorithm for the often unknown client access patterns (e.g., arrival rates and interactivity rates), we present a novel just-in-time simulation (JTS) scheme to dynamically and automatically tune operating parameters of the SFSS algorithm while the system is online. This JTS scheme not only eliminates the need for a priori knowledge of the often unknown system parameters, but also can adapt to changes in the client access pattern over time. Extensive simulation results show that the proposed adaptive algorithm can reduce the admission and interactive control latencies by as much as 90%.
著者Wong YW, Lee JYB, Li VOK, Chan GSH
期刊名稱IEEE Transactions on Circuits and Systems for Video Technology
出版年份2007
月份2
日期1
卷號17
期次2
出版社IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
頁次129 - 142
國際標準期刊號1051-8215
電子國際標準期刊號1558-2205
語言英式英語
關鍵詞embedded simulator; interactive playback control; just-in-time; multicast streaming; video-on-demand (VoD)
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; ENGINEERING, ELECTRICAL & ELECTRONIC

上次更新時間 2020-31-07 於 23:15