Design and analysis of multicast delivery to provide VCR functionality in video-on-demand systems

Wilson Wing Fai Poon, Kwok Tung Lo, Jian Feng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

15 Citations (Scopus)


Multicast delivery is one of the solutions to reduce the cost in a large video-on-demand (VoD) system. However, multicast transmission makes it more difficult to implement interactive functions for an individual user. In this paper, we first try to explore and evaluate the performance of different multicast VoD systems. A new scheme called single-rate multicast double-rate unicast (SRMDRU) is then developed to minimize the system resources for supporting full VCR functionality in a multicast VoD system. The proposed SRMDRU multicast system tries to double the transmission rate in unicast streams and then merge customers into multicast channels so that it can reduce the number of unicast streams. Computer simulations show that the multicast system using the SRMDRU scheme performs much better than other multicast systems in terms of system blocking probabilities. In addition, this scheme allows a multicast system to support true VoD services so customers can be served as soon as the system receives the requests.
Original languageEnglish
Title of host publication1999 2nd International Conference on ATM, ICATM 1999
Number of pages8
ISBN (Electronic)0780354281, 9780780354289
Publication statusPublished - 1 Jan 1999
Event2nd International Conference on ATM, ICATM 1999 - Colmar, France
Duration: 21 Jun 199923 Jun 1999


Conference2nd International Conference on ATM, ICATM 1999


  • Interactive TV
  • Video on demand (VoD)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture

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