Performance analysis of a buffer management technique for interactive video-on-demand

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (SciVal)


Recently several design alternatives have been proposed for interactive Video-On-Demand (VOD) systems to satisfy the increasing performance and quality of service (QoS) requirements. Interval caching is a buffer management technique, which can be implemented in conjunction with other techniques to further improve a VOD server performance. This mechanism exploits the temporal locality of requests to the same movie and tries to serve requests from the cache, thereby enhancing system throughput. Earlier studies have examined interval caching with only normal playback operations and have not considered various interactive VCR functionalities such as fast forward, rewind, and pause. Moreover, the complexity of the problem has confined the evaluation methodology to simulation. In this paper, we present a mathematical model for analyzing the performance of an interactive video server that uses interval caching. The model captures the complex interactions of five different VCR operations and predicts the improvement in system throughput due to interval caching. Validation through simulation shows that the model is quite accurate in predicting performance over a wide range of parameters. The usefulness of the model, as a design tool in studying server performance for varying user-interactivity and system parameters, is demonstrated through several examples.

Original languageEnglish (US)
Title of host publicationMultimedia Modeling
Subtitle of host publicationModeling Multimedia Information and Systems, MMM 2000
EditorsShuji Hashimoto
PublisherWorld Scientific Publishing Co. Pte Ltd
Number of pages22
ISBN (Electronic)9810244894, 9789810244897
StatePublished - Jan 1 2020
Event7th International Conference on Multimedia Modeling 2000, MMM 2000 - Nagano, Japan
Duration: Nov 13 2000Nov 15 2000

Publication series

NameMultimedia Modeling: Modeling Multimedia Information and Systems, MMM 2000


Conference7th International Conference on Multimedia Modeling 2000, MMM 2000

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Computer Graphics and Computer-Aided Design
  • Software


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