Sender-driven bandwidth differentiation for transmitting multimedia flows over TCP
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員
替代計量分析
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摘要Over the years the Internet has shown extraordinary scalability and robustness in spite of the explosive growth in geographical reach, user population size, as well as network traffic volume. This scalability and robustness is, in no small part, supported by the Internet's transport protocols, the Transmission Control Protocol (TCP) in particular. Nevertheless, with the rapid growth of multimedia-rich contents in the Internet, such as audio and video, the many strengths of TCP in data delivery are slowly imposing bottlenecks in multimedia data delivery where different media data flows often have different needs for bandwidth. As TCP's congestion control algorithm enforces fair bandwidth sharing among traffic flows sharing the same network bottleneck, different media data flows will receive the same bandwidth irrespective of the actual needs of the multimedia data being delivered. This work addresses this limitation by proposing a new algorithm to achieve non-uniform bandwidth allocation among TCP flows originating from the same sender passing through the same network bottleneck to multiple receivers. The proposed algorithm, called Virtual Packet Substitution (VPS), has four desirable features: (a) it allows the allocation of bottleneck bandwidth between a group of TCP flows; (b) the resultant traffic flows as a whole, maintain the same fair bandwidth sharing property with other competing TCP flows; (c) it can be implemented entirely in the sender's TCP protocol stack; and (d) it is compatible with and does not require modification to existing TCP protocol stack at the clients. Simulation results show that the proposed VPS algorithm can achieve accurate bandwidth allocation while still maintaining fair bandwidth sharing with competing TCP flows. © 2006 SPIE-IS&T.
著者Lau K.H., Lee J.Y.B.
會議名稱Multimedia Computing and Networking 2006
會議開始日18.01.2006
會議完結日19.01.2006
會議地點San Jose, CA
會議國家/地區美國
詳細描述ed. by K. H. Lau and J. Y. B. Lee.
出版年份2006
月份4
日期17
卷號6071
國際標準書號0819461113
國際標準期刊號0277-786X
語言英式英語
關鍵詞Packet substitution, Proportional fairness, Quality of service, TCP-friendliness, Video streaming

上次更新時間 2020-13-08 於 05:05