Channel folding-an algorithm to improve efficiency of multicast video-on-demand systems
Publication in refereed journal

香港中文大學研究人員

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其它資訊
摘要Recently a number of researchers have proposed and investigated new video-on-demand architectures that make use of network multicast to achieve vastly improved efficiency. Techniques such as hatching, patching, periodic broadcasting, chaining, and piggybacking have been explored both in isolation and in combinations. This study investigates a new tool in the arsenal-channel folding, where aggressive client-side caching is used to merge clients from one multicast channel into the other. In particular, this channel folding algorithm is applied to a previously proposed unified video-on-demand (UVoD) architecture to demonstrate and to quantify its impact on the performance and the tradeoff in a multicast video distribution architecture. This paper presents this channel folding algorithm in the context of UVoD and derives a performance model to obtain the system latency, the near-optimal channel partition policy, and the client buffer requirement. Numerical results show that channel folding can double the capacity of UVoD with a remarkably small overhead in the client buffer requirement.
著者Lee JYB
期刊名稱IEEE Transactions on Multimedia
出版年份2005
月份4
日期1
卷號7
期次2
出版社IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
頁次366 - 378
國際標準期刊號1520-9210
電子國際標準期刊號1941-0077
語言英式英語
關鍵詞caching; channel folding; merging; multicast; performance analysis; unified video-on-demand (UVoD); video-on-demand (VoD)
Web of Science 學科類別Computer Science; Computer Science, Information Systems; COMPUTER SCIENCE, INFORMATION SYSTEMS; Computer Science, Software Engineering; COMPUTER SCIENCE, SOFTWARE ENGINEERING; Telecommunications; TELECOMMUNICATIONS

上次更新時間 2020-02-08 於 02:47