A novel method for modeling and analysis of distributed video on demand systems

Eric W.M. Wong, Michael Y.M. Chiu, Moshe Zukerman, Zvi Rosberg, Sammy Chan, Andrew Zalesky

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations


We consider a simple model for distributed video on demand (VoD) systems. The model is analyzed by the Erlang Fixed Point (EFP) approximation and by a new method referred to as Overflow Priority Classification (OPC). The OPC method imposes a preemptive priority regime in a non-priority system to capture the traffic load dependence among VoD servers. Comparison between OPC and EFP reveals that OPC is more accurate. The comparison is made with respect to two Quality of Service (QoS) measures, the loss probability and the probability that a video request is not served by the preferred VoD server given that it is not lost.

Original languageEnglish
Pages (from-to)88-92
Number of pages5
JournalConference Record - International Conference on Communications
StatePublished - 15 Sep 2005
Event2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of
Duration: 16 May 200520 May 2005


  • Distributed systems
  • Erlang Fixed Point
  • VoD

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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