GENERATION OF RANDOM-VARIABLES FOR MODELING VBR MULTIMEDIA SOURCES

The design and performance evaluation of multimedia systems require th e availability of adequate models to mimic the statistical properties of the traffic generated by a multimedia source. In this paper the aut hors propose a very simple method for the generation of discrete-time and discrete-state autocorrelated random variables which can be used t o model a traffic source by simulation. The probability distribution a nd autocorrelation sequence of the variables generated exactly match t he corresponding experimental histograms of the source to be modelled when the experimental autocorrelation sequence is decreasing with down ward convexity. In this paper an analytical demonstration of the metho d proposed is given and its use is illustrated by three telecommunicat ions examples.