Transport Of Vbr Mpeg Video In Atm Networks

The complex traffic characteristics of variable bit rate (VBR) video sources makes them difficult to accommodate in ATM networks. To efficiently transport these services will require both an understanding of the source traffic and novel network control schemes. In this paper; we study a variable bandwidth allocation scheme which estimates the required bandwidth for a VBR MPEG video source using a simple prediction algorithm. We also discuss the advantages of using a layered MPEG coder over the standard MPEG coder and demonstrate a method for controlling such a l coder in order to reduce the effect of cell losses.