A NEW STATISTICAL-MODEL FOR TRAFFIC GENERATED BY VBR CODERS FOR TELEVISION ON THE BROAD-BAND ISDN

Many techniques have been proposed for modeling source rates generated by variable bit rate video coders, However, Little work has been done to verify these models, especially in the area of measuring the quali ty of their predictions for network performance and the grade of servi ce experienced by a customer. In this paper, we summarize the previous work in this area, highlight some of the difficulties in effectively verifying these models, and suggest methods by which source rate model s for VER video might be more effectively verified in the future. In a ddition to studying the problem of model verification, a new model is proposed, Using this model, a video sequence is characterized by four parameters, As in previous cases, the number of bits generated by the coder for a sequence of video frames is modelled, The new model differ s from previous models. in that this sequence is not Markovian.