Long‐Range Dependence and Queueing Effects for VBR Video
Daniel P. Heyman, T. V. Lakshman · 2000
In this chapter we present some of our results concerning source models for H.261 coded VBR (variable bit rate) video. Video services have been forecasted to be a substantial portion of the traffic on emerging broadband digital networks. Statistical source models of video traffic are needed to design networks that delivery acceptable picture quality at minimum cost, and to control and shape the output rate of the coder. For example, one issue is deciding whether a new video connection can be admitted to a network, and the consequent determination of the bandwidth that must be allocated to the connection to ensure adequate quality of service. A model of the bandwidth that the connection will try to consume is required for this task. In addition to providing a good description of the bandwidth requirements, the source model should be usable in the connection-acceptance decision model.