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Video over DSL with LDGM codes for interactive applications

Casu, Filippo and Cabrera, Julian and Al-Jobouri, Laith and Fleury, Martin (2015) Video over DSL with LDGM codes for interactive applications. In: 2015 7th Computer Science and Electronic Engineering (CEEC), 2015-09-24 - 2015-09-25, Colchester.

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Abstract

Digital Subscriber Line (DSL) network access is subject to error bursts, which, for interactive video, can introduce unacceptable latencies if video packets need to be resent. If the video packets are protected against errors with Forward Error Correction (FEC) calculation of the application-layer channel codes themselves may also introduce additional latency. This paper proposes Low-Density Generator Codes (LDGM) rather than other popular codes because they are more suitable for interactive video streaming not only for their computational simplicity but also for their licensing advantage. The paper demonstrates that up to a 4 dB reduction in video distortion is achievable with LDGM Application Layer (AL) FEC. Telemedicine and video conferencing are typical target applications.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: DSL; FEC; low latency; packet loss; video streaming
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 01 Jul 2016 15:50
Last Modified: 15 Jan 2022 01:24
URI: http://repository.essex.ac.uk/id/eprint/17126

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