Title :
VBR video delivery using monotonic-decreasing rate scheduling
Author :
Lai, H.L. ; Chen, L.K. ; Lee, Y.B.
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
Variable-bit-rate (VBR) encoding is known to provide a more consistent visual duality compared to constant-bit-rate (CBR) encoding. However, the resultant bit-rate variations greatly complicated the allocation of disk and network bandwidth in a video-on-demand system. This paper investigates a new scheduling algorithm with monotonic-decreasing rate allocations for scheduling disk retrievals and data transmissions. This scheduler enables the use of a very computationally-efficient admission-control algorithm that can provide deterministic performance guarantee. Simulation results based on a large number of VBR video traces (307 DVD videos) show that the proposed scheduler can achieve over 84% disk efficiency despite long-range bit-rate variations within individual videos
Keywords :
bandwidth allocation; scheduling; video coding; video on demand; 84 percent; DVD video; VBR encoding; admission control algorithm; bandwidth allocation; data transmission; disk retrieval; monotonic-decreasing rate scheduling; video-on-demand system; Bandwidth; Computational modeling; Data communication; Encoding; Information retrieval; Processor scheduling; Scheduling algorithm; Smoothing methods; Streaming media; Video compression;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921077
