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Proceedings Paper

QoS mapping mechanism for MPEG video transport in a DiffServ network
Author(s): Johann Max Hofmann Magalhaes; Paulo Roberto Guardieiro
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Paper Abstract

In this paper, we propose a new QoS mapping mechanism for video transport in a network using the DiffServ architecture. Video packets mapping is based on the QoS index, which represents the preference of each video flow in terms of loss and delay. Then, in a specified video application, the QoS mapping will be given by prioritizing certain packets according to its importance in MPEG video streams and the desired end-to-end quality. In order to verify the efficiency of this mechanism, the end-to-end system performance was evaluated by means of modeling and simulation of MPEG-4 video transmission over a DiffServ domain. The results showed that the proposed QoS mapping mechanism can take advantage of the DiffServ architecture, making possible enhanced end-to-end video quality according to the user, and applications needs.

Paper Details

Date Published: 1 July 2002
PDF: 11 pages
Proc. SPIE 4866, Quality of Service over Next-Generation Internet, (1 July 2002); doi: 10.1117/12.473016
Show Author Affiliations
Johann Max Hofmann Magalhaes, Univ. Federal de Uberlandia (Brazil)
Paulo Roberto Guardieiro, Univ. Federal de Uberlandia (Brazil)

Published in SPIE Proceedings Vol. 4866:
Quality of Service over Next-Generation Internet
Mohammed Atiquzzaman; Mahbub Hassan, Editor(s)

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