VBR MPEG video coding with dynamic bandwidth renegotiation

D. Reininger, G. Ramamurthy, D. Raychaudhuri

Research output: Contribution to conferencePaperpeer-review

21 Scopus citations

Abstract

A scheme for VBR video coding is proposed where encoding bandwidth can be renegotiated between the encoder and the network during the duration of a call. Renegotiation can be initiated by either the encoder or the network. The encoder's bandwidth requirement is characterized by a usage parameter control (UPC) set consisting of peak rate, burst length and sustained rate. An adaptive encoder rate-control algorithm at the network interface card (NIC) computes the necessary UPC parameters to maintain the user specified quality-of-service (QoS). The network may, optionally, set a lower UPC value to deal with congestion. Simulation results are given for a rate-controlled VBR video encoder operating through an ATM network interface which supports dynamic UPC. These results suggest that dynamic bandwidth renegotiation could provide significant quality gains and/or bandwidth savings with graceful degradation during renegotiation transients, even in the presence of relatively large feedback delay.

Original languageEnglish (US)
Pages1773-1777
Number of pages5
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 IEEE International Conference on Communications. Part 1 (of 3) - Seattle, WA, USA
Duration: Jun 18 1995Jun 22 1995

Other

OtherProceedings of the 1995 IEEE International Conference on Communications. Part 1 (of 3)
CitySeattle, WA, USA
Period6/18/956/22/95

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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