Performance Analysis of Service Model in Parallel VOD system

병렬 VOD 시스템에서 서비스 모델의 성능분석

  • Nam, Jeong-Yim (Computer Information Communication Engineering Department, Chonnam National University) ;
  • Nam, Ji-Seung (Computer Information Communication Engineering Department, Chonnam National University)
  • 남정임 (전남대학교 공과대학 컴퓨터정보통신공학과) ;
  • 남지승 (전남대학교 공과대학 컴퓨터정보통신공학과)
  • Published : 2005.11.26

Abstract

Media service model is divided into 3 models that are Client Pull, Server Push, and IPP(Interleaving Pull & Push) model. In most single VOD(Video On Demand) environment, Client Pull model was sufficient to play the movie Because most media contents has a low bitrate and resolution. But according to an increment of the demand of the high definition media, Client Pull model is not sufficient. Parallel VOD environment is made of several of VOD servers and provides the parallel media stream simultaneously for one client. We compared and analyzed the performance of service models with respect to network delay and data size in buffer in the single and parallel VOD environment and we found that IPP service model keeps the least network delay and stable client buffer state in the parallel VOD environment.

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