Performance of buffer-based request-reply scheme for VoD streams over IP networks

  • Poon S
  • Jie S
  • Lee B
 et al. 
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Abstract

This paper introduces the buffer-based request/reply (RQRP) Pull delivery model, which has been accepted by the digital audio-visual council (DAVIC) for the delivery of audio-video stream in video on demand (VoD) systems [DAVIC, Jitter Concealment Tool, DAVIC 1.5 baseline document 15z07r40]. A VoD system has been successfully developed and the performances of two variations of the RQRP protocol, namely half-duplex and full-duplex modes have been evaluated. Simulation study of the performance was initially carried out on the RQRP protocol. A prototype VoD system using the RQRP protocol specification was implemented and the experiment results were obtained. The investigation shows that the full-duplex RQRP yields better results, especially over high delay networks, in terms of maximum throughput, rate of adapting to client play-out rate changes and shorter start-up time.

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Authors

  • S. M. Poon

  • Song Jie

  • B. S. Lee

  • C. K. Yeo

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