Wavelet-Based VBR Video Traffic Smoothing Academic Article uri icon

abstract

  • In a typical video application, such as video-on-demaud, videos are continuously streamed from a video server to a distributed set of receivers. The constant-quality video compression technique commonly used, variable bit rate (VBR) encoding, produces flows with multiple time-scale rate variability, so smoothing the VBR video traffic within an entire distribution tree presents a challenging task. This paper proposes a novel wavelet-based traffic smoothing (WTS) algorithm. Unlike existing algorithms, the WTS algorithm considers traffic smoothing at multiple resolutions. It results in a pruned version of a full tree, which corresponds to the original VBR traffic. Theoretical analysis and numerical evaluation demonstrate that: 1) WTS performs well across several metrics in smoothing bursty traffic and 2) for a video bit stream with N frames, the computational complexity of WTS is O(N log N).

published proceedings

  • IEEE Transactions on Multimedia

author list (cited authors)

  • Ye, D., Barker, J. C., Xiong, Z., & Zhu, W.

citation count

  • 10

complete list of authors

  • Ye, D||Barker, JC||Xiong, Z||Zhu, W

publication date

  • August 2004