On-line dynamic bandwidth allocation for VBR video transmission

Hai Liu, N. Ansari, Y. Q. Shi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


To guarantee quality of service (QoS), the requirements for video transmission, such as delay and cell loss rate (CLR), are very stringent. These constraints are difficult to meet if high network utilization is desired. In this paper, online dynamic bandwidth allocation algorithms, in which the bandwidth is adjusted based on the current frame size, are proposed to improve the bandwidth utilization. When the bandwidth deviation is large enough, a bandwidth re-negotiation process is triggered. Compared with a constant bit-rate (CBR) service, network utilization can be improved significantly for the same CLR. In general, to achieve a very low CLR and high bandwidth utilization, the re-negotiation frequency may become high. Algorithms which have been proven to be effective in reducing the re-negotiation frequency while keeping the bandwidth utilization at a reasonable level are also proposed.

Original languageEnglish (US)
Title of host publicationProceedings - International Conference on Information Technology
Subtitle of host publicationCoding and Computing, ITCC 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)0769510620, 9780769510620
StatePublished - 2001
EventInternational Conference on Information Technology: Coding and Computing, ITCC 2001 - Las Vegas, United States
Duration: Apr 2 2001Apr 4 2001

Publication series

NameProceedings - International Conference on Information Technology: Coding and Computing, ITCC 2001


OtherInternational Conference on Information Technology: Coding and Computing, ITCC 2001
Country/TerritoryUnited States
CityLas Vegas

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Science Applications
  • Information Systems
  • Software


  • MPEG
  • dynamic bandwidth allocation
  • frame delay
  • quality of service
  • video transmission


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