Journal of Northeastern University ›› 2004, Vol. 25 ›› Issue (9): 833-836.DOI: -

• OriginalPaper • Previous Articles     Next Articles

Video-integrated scheduling for proxy-assisted VOD

Hu, Yu-Qi (1); Zang, Huai-Quan (2); Gao, Yuan (1)   

  1. (1) Qinhuangdao Branch, Northeastern Univ., Qinhuangdao 066004, China; (2) Inst. of Elec. Eng., Yanshan Univ., Qinhuangdao 066004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2004-09-15 Published:2013-06-25
  • Contact: Hu, Y.-Q.
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Abstract: Video scheduling and proxy caching were investigated for proxy-assisted VOD (video-on-demand). The existing scheduling schemes were analyzed in a distributive proxy-based VOD system including mainly the client-pull and server-push schemes. In order to improve the utilization rate of bandwidth resources efficiently, a clear distinction between popular and unpopular videos was made taking the visual consumption of system's bandwidth resource as a performance index. A video-integrated scheduling scheme was proposed to configure client-pull and server-push scheduling schemes differing unpopular from popular videos. In addition, an optimal proxy caching algorithm was also proposed in combination with the video-integrated scheduling scheme, thus resulting in an efficient utilization of bandwidth resources. A performance evaluation showed that both algorithms can widen greatly the bandwidth bottleneck.

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