AAL1 with FEC for the transport of CBR MPEG2 video over ATM networks

AAL1 represents a long term solution for the transport of CBR MPEG2 video traffic over ATM networks. This paper describes an integrated implementation model for AAL1 carrying CBR MPEG2 traffic with particular focus on the receiver convergence sublayer functions and the issues affecting the end-to-end performance of the AAL1 connection. Through a comprehensive simulation of the AAL and the ATM layers, we verify that the implementation model is capable of delivering the desired QoS for video applications under a wide range of cell losses and cell delay variations. In addition, we show the effects of using FEC with byte interleaving on the end-to-end performance parameters. We conclude that cell loss statistics constitute the key factors in determining the overall performance of the AAL1 connection