A new approach to long-range dependence in variable bit rate video traffic

Recently it has been observed that variable bit rate (VBR) video traffic di splays long-range dependence, which suggests that traditional Markovian mod els may not be suitable for performance evaluation of telecommunications ne tworks carrying this traffic. Inspection of the bit rate profile of VBR vid eo traffic suggests that shifting level processes might be more appropriate for this task. In this paper we show that a particular class of these proc esses matches the autocorrelation and bit rate distribution of real VBR vid eo traffic, including exhibiting long-range dependent behaviour.