CONGESTION CONTROL ACROSS A VIDEO-DOMINATED INTERNET TIGHT LINK

E. A. Jammeh, M. Fleury, M. Ghanbari

Abstract

Existing congestion controllers have been designed with TCP traffic in mind. Changing traffic patterns on the Internet imply that on some tight links all UDP video streams will occur. Three different congestion controllers (RAP, TFRC, and fuzzy-logic based), already successful in avoiding instability in current TCP-dominated internets, were tested across a tight link in which video traffic dominated. Congestion control is either achieved by modulating the sending rate in response to feedback of packet loss rates and/or round-trip delays (RAP/TFRC) or a congestion level based on packet dispersion across a network path (fuzzy controller). The controllers were found to differ in the smoothness of resulting video clip streams, with the fuzzy and TFRC controllers, in that order, producing the smoothest received video. Tests also demonstrated that, when controlled flows of different types compete across a tight link, it is possible for the sending rate of TFRC to exceed the available bandwidth, resulting in excess packet loss and implying quite poor video quality at the receiver. The results show that fuzzy-logic control is more flexible when video streams dominate.

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Paper Citation


in Harvard Style

A. Jammeh E., Fleury M. and Ghanbari M. (2006). CONGESTION CONTROL ACROSS A VIDEO-DOMINATED INTERNET TIGHT LINK . In Proceedings of the International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2006) ISBN 978-972-8865-64-1, pages 89-94. DOI: 10.5220/0001567700890094


in Bibtex Style

@conference{sigmap06,
author={E. A. Jammeh and M. Fleury and M. Ghanbari},
title={CONGESTION CONTROL ACROSS A VIDEO-DOMINATED INTERNET TIGHT LINK},
booktitle={Proceedings of the International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2006)},
year={2006},
pages={89-94},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001567700890094},
isbn={978-972-8865-64-1},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2006)
TI - CONGESTION CONTROL ACROSS A VIDEO-DOMINATED INTERNET TIGHT LINK
SN - 978-972-8865-64-1
AU - A. Jammeh E.
AU - Fleury M.
AU - Ghanbari M.
PY - 2006
SP - 89
EP - 94
DO - 10.5220/0001567700890094