CHARACTERIZATION AND MODELING OF VBR VIDEO TRAFFIC

The impact of VER video traffic characteristics on broadband network p erformance is analysed. In particular? the authors compare in a queue the behaviour of several models that adjust different statistical para meters of actual MPEG traces. It is proved that a good fit of the prob ability density function (PDF) is essential to approximate queuing beh aviour while the effects of short range dependence (SRD) are of second ary importance and those of long range dependence (LRD) could be negle cted for practical purposes if realistic scenarios, with strict QoS re quirements, are considered.