Performance Evaluation of Ethernets and ATM Networks Carrying Video Traffic
Ismail Dalgic, Fouad A. Tobagi · 1996
In this report the performance of Ethernets (10Base-T and 100Base-T) and ATM networks carrying multimedia traffic is presented. End-to-end delay requirements suitable for a wide range of multimedia applications are considered (ranging from 20 ms to 500 ms). Given the specific nature of the network considered and the maximum latency requirement, some data is lost. Data loss at the receiver causes quality degradations in the displayed video in the form of discontinuities, referred to as glitches. We define various quantities characterizing the glitches, namely, the total amount of information lost in glitches, their duration, and the rate at which glitches occur. We study these quantities for various network and traffic scenarios, using a computer simulation model driven by real video traffic generated by encoding video sequences. We also determine the maximum number of video streams that can be supported for given maximum delay requirement and glitch rate. We consider and compare the re...