Buffer control for variable bit rate video over wireless ATM LAN

Research output: Contribution to journalConference articlepeer-review


The derivation of the constraints on the encoded bit rate of a video signal imposed by a channel, encoder and decoder buffers is important in the context of video transmission over a wireless channel. In this paper, we derive the conditions for buffer control to ensure that the buffers do not overflow or underflow when video is transmitted over a variable bit rate channel. Using these conditions and a commonly proposed network-user contract, the effect of a network policing function (or usage parameter control function) on the allowable variability of the encoded video bit rate is examined. The details of how these effects might be implemented in a system that controls both the encoded and transmitted bit rates is also presented.

Original languageEnglish (US)
Pages (from-to)49-56
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1998
EventMultimedia Networks: Security, Displays, Terminals, and Gateways - Dallas, TX, United States
Duration: Nov 4 1997Nov 4 1997


  • Buffer control
  • Congestion
  • Policing function
  • Variable bit-rate (VBR)
  • Wireless ATM LAN

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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