Research Repository

Fuzzy-logic congestion control of transcoded video streaming without packet loss feedback

Jammeh, E and Fleury, M and Ghanbari, M (2008) 'Fuzzy-logic congestion control of transcoded video streaming without packet loss feedback.' IEEE Transactions on Circuits and Systems for Video Technology, 18 (3). 387 - 393. ISSN 1051-8215

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Congestion control of a variable bit-rate video stream crossing the Internet is crucial to ensuring the quality of the received video. When a fuzzy-logic congestion controller (FLC) changes the sending rate of a video transcoder, it does so without feedback of packet loss, using packet dispersion instead. Compared with the well-known TFRC and RAP controllers, the FLC's sending rate is significantly smoother, allowing it to more closely take up available bandwidth at a bottleneck link. There is an accompanying order of magnitude reduction in packet losses. Due to better utilization of the available bandwidth, video quality is improved over time by several decibels in low-packet-loss conditions. The strength of the FLC solution is demonstrated by the resulting video quality when typical Web traffic forms the background traffic. The FLC avoids any risk of congestion collapse through fairness to coexisting TCP flows and is robust to changes in path delay and router buffer configuration. © 2006 IEEE.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Jim Jamieson
Date Deposited: 13 May 2013 19:14
Last Modified: 30 Jan 2019 16:22

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