Title page for ETD etd-01598-55245


Type of Document Master's Thesis
Author Taylor, Elvin Lattis Jr.
Author's Email Address eltaylor@ee.vt.edu
URN etd-01598-55245
Title Modeling and Simulation of a Video-on-Demand Network Implementing Adaptive Source-Level Control and Relative Rate Marking Flow Control for the Available Bit Rate Service
Degree Master of Science
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Midkiff, Scott F. Committee Chair
Davis, Nathaniel J. IV Committee Member
Parry, Charles J. Committee Member
Keywords
  • Traffic Management
  • Video-on-Demand
  • High-speed Networking
Date of Defense 1997-12-18
Availability unrestricted
Abstract
The Available Bit Rate (ABR) service class for the Asynchronous Transfer Mode (ATM) protocol was originally designed to manage data traffic. ABR flow control makes no guarantees concerning cell transfer delay or cell delay variation. A closed-loop feedback mechanism is used for traffic management. To use this class of service for video transport, the video source will accept feedback from the network and adapt its source rate based on this status information. The objective of this research is to assess the ability of the ATM ABR service class to deliver Moving Picture Experts Group version 1 (MPEG-1) video. Three approaches to source-level control are compared: (i) arbitrary loss or no control method, (ii) selective discard of MPEG B-pictures, and (iii) selective discard of MPEG B- and P-pictures. Performance is evaluated based on end-to-end delay, congested queue occupancy levels, network utilization, and jitter. A description of the investigation, assumptions, limitations, and results of the simulation study are included.
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