Abstract

This chapter outlines the design of the network traffic workload models for Asynchronous Transfer Mode-Traffic and Network (ATM-TN). Three specific traffic models have been chosen for implementation: a Motion Pictures Experts Group (MPEG) compressed video traffic model, an Ethernet local area network traffic model, and an Internet World Wide Web traffic model. The MPEG video traffic model in ATM-TN is designed to model the unidirectional transmission of a single variable bit rate compressed video stream in an ATM network, where the video source is compressed according to the MPEG standard. The MPEG video sources are modeled using the Transform-Expand-Sample modeling methodology developed by B. Melamed et al. The final MPEG model has four parameters: the Group of Pictures structure of the MPEG stream; a scaling factor for the average bit rate; the frame rate for the displayed video; and a smoothing parameter for shaping the video source.

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