QoS mapping mechanism for MPEG video transport in a DiffServ network

Johann Max Hofmann Magalhaes; Paulo Roberto Guardieiro

doi:10.1117/12.473016

1 July 2002 QoS mapping mechanism for MPEG video transport in a DiffServ network

Johann Max Hofmann Magalhaes, Paulo Roberto Guardieiro

Proceedings Volume 4866, Quality of Service over Next-Generation Internet; (2002) https://doi.org/10.1117/12.473016
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

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.

Citation Download Citation

Johann Max Hofmann Magalhaes and Paulo Roberto Guardieiro "QoS mapping mechanism for MPEG video transport in a DiffServ network", Proc. SPIE 4866, Quality of Service over Next-Generation Internet, (1 July 2002); https://doi.org/10.1117/12.473016

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