TES-BASED VIDEO SOURCE MODELING FOR PERFORMANCE EVALUATION OF INTEGRATED NETWORKS

This letter considers modeling methodologies of variable bit-rate (VBR ) video sources for performance evaluation of integrated networks. We consider an example in which compressed H.261 standard VBR video is tr ansmitted over a local area network carrying both video and data. A gr oup-of-block (GOB) level source model has been constructed using TES ( Transform-Expand-Sample) - a new general methodology for generating st ationary autocorrelated time series, which can simultaneously capture a prescribed marginal distribution and autocorrelation function. The T ES model was used to drive CSNA/CD network simulations for a performan ce evaluation study. Numerical comparisons with a conventional autoreg ressive (AR) modeling approach are given.