A monotonic-decreasing rate scheduler for variable-bit-rate video streaming
Publication in refereed journal


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其它資訊
摘要Variable-bit-rate (VBR) encoded videos can provide a more consistent visual quality than constant-bit-rate (CBR) encoded videos. However, the long-range bit-rate variations in VBR videos make it difficult to,efficiently provide quality-of-service control in a video-on-demand system. Existing scheduling algorithms such as Optimal Smoothing, which requires both downward and upward bandwidth reallocations to adapt to the video bit-rate variations, simply cannot guarantee video delivery in networks with mixed video and data traffic. This study tackles this limitation by investigating a new scheduling algorithm with monotonic-decreasing rate allocations for scheduling video data transmissions. By eliminating upward bandwidth reallocations, the proposed scheduler can guarantee video delivery even in the presence of other data traffic in the same network. Moreover, results show that the proposed scheduler can achieve such performance guarantee without tradeoff in performance or resource requirements. This paper presents this new monotonic-decreasing rate scheduler, analyzes its fundamental properties, and evaluates its performance using a large number of real world VBR video traces (274 DVD movies) in extensive trace-driven simulations.
著者Lai HL, Lee JYB, Chen LK
期刊名稱IEEE Transactions on Circuits and Systems for Video Technology
出版年份2005
月份2
日期1
卷號15
期次2
出版社IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
頁次221 - 231
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performance guarantee; scheduling; smoothing; variable-bit-rate (VBR) video
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; ENGINEERING, ELECTRICAL & ELECTRONIC

上次更新時間 2020-09-08 於 04:28