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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (4 ): 10-    DOI: 10.1631/jzus.2006.A0543
    
Segment-based traffic smoothing algorithm for VBR video stream
Liu Yun-qiang, Yu Song-yu, Wang Xiang-wen, Zhou Jun
Institute of Image Communication and Information Processing, Shanghai Jiao Tong University, Shanghai 200030, China
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Abstract  Transmission of variable bit rate (VBR) video, because of the burstiness of VBR video traffic, has high fluctuation in bandwidth requirement. Traffic smoothing algorithm is very efficient in reducing burstiness of the VBR video stream by transmitting data in a series of fixed rates. We propose in this paper a novel segment-based bandwidth allocation algorithm which dynamically adjusts the segmentation boundary and changes the transmission rate at the latest possible point so that the video segment will be extended as long as possible and the number of rate changes can be as small as possible while keeping the peak rate low. Simulation results showed that our approach has small bandwidth requirement, high bandwidth utilization and low computation cost.

Key words： Segmentation      Traffic smoothing      Variable bit rate (VBR) video     
Received: 16 January 2005     
CLC:  TP391  
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Liu Yun-qiang
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Zhou Jun
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Liu Yun-qiang, Yu Song-yu, Wang Xiang-wen, Zhou Jun. Segment-based traffic smoothing algorithm for VBR video stream. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(4 ): 10-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.A0543     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/I4 /10

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