Video over DSL with LDGM codes for interactive applications

Laith Al-Jobouri; Filippo Casu; Martin Fleury; Julián Cabrera

doi:10.3390/computers5020009

Video over DSL with LDGM codes for interactive applications

Laith Al-Jobouri, Filippo Casu, Martin Fleury^*, Julián Cabrera

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

7 Downloads (Pure)

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 re-sent. 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 Matrix (LDGM) codes 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 a reduction of up to 4 dB in video distortion is achievable with LDGM Application Layer (AL) FEC. In addition, an extension to the LDGM scheme is demonstrated, which works by rearranging the columns of the parity check matrix so as to make it even more resilient to burst errors. Telemedicine and video conferencing are typical target applications.

Original language	English
Article number	9
Number of pages	18
Journal	Computers
Volume	5
Issue number	2
Early online date	23 May 2016
DOIs	https://doi.org/10.3390/computers5020009
Publication status	Published - 23 May 2016
Externally published	Yes
Event	7th Computer Science and Electronic Engineering Conference - University of Essex, Colchester, United Kingdom Duration: 24 Sept 2015 → 25 Sept 2015 Conference number: 7th

Keywords

Digital subscriber line (DSL)
Forward error correction (FEC)
Low density generator matrix (LDGM)
Low-density parity-check (LDPC)
Low latency
Packet loss
Reed-solomon (RS)
Video streaming

Access to Document

10.3390/computers5020009Licence: CC BY

Al-Jobouri_VideoOverDSL_Published_2016Final published version, 456 KBLicence: CC BY

Cite this

@article{82c037fbd7674df89f04bc0296d4b8a0,

title = "Video over DSL with LDGM codes for interactive applications",

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 re-sent. 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 Matrix (LDGM) codes 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 a reduction of up to 4 dB in video distortion is achievable with LDGM Application Layer (AL) FEC. In addition, an extension to the LDGM scheme is demonstrated, which works by rearranging the columns of the parity check matrix so as to make it even more resilient to burst errors. Telemedicine and video conferencing are typical target applications.",

author = "Laith Al-Jobouri and Filippo Casu and Martin Fleury and Juli{\'a}n Cabrera",

note = "Publisher Copyright: {\textcopyright} 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).; 7th Computer Science and Electronic Engineering Conference, CEEC 2015 ; Conference date: 24-09-2015 Through 25-09-2015",

year = "2016",

month = may,

day = "23",

doi = "10.3390/computers5020009",

language = "English",

volume = "5",

journal = "Computers",

issn = "2073-431X",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "2",

}

TY - JOUR

T1 - Video over DSL with LDGM codes for interactive applications

AU - Al-Jobouri, Laith

AU - Casu, Filippo

AU - Fleury, Martin

AU - Cabrera, Julián

N1 - Conference code: 7th

PY - 2016/5/23

Y1 - 2016/5/23

N2 - 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 re-sent. 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 Matrix (LDGM) codes 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 a reduction of up to 4 dB in video distortion is achievable with LDGM Application Layer (AL) FEC. In addition, an extension to the LDGM scheme is demonstrated, which works by rearranging the columns of the parity check matrix so as to make it even more resilient to burst errors. Telemedicine and video conferencing are typical target applications.

AB - 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 re-sent. 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 Matrix (LDGM) codes 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 a reduction of up to 4 dB in video distortion is achievable with LDGM Application Layer (AL) FEC. In addition, an extension to the LDGM scheme is demonstrated, which works by rearranging the columns of the parity check matrix so as to make it even more resilient to burst errors. Telemedicine and video conferencing are typical target applications.

U2 - 10.3390/computers5020009

DO - 10.3390/computers5020009

M3 - Article

AN - SCOPUS:85063837504

SN - 2073-431X

VL - 5

JO - Computers

JF - Computers

IS - 2

M1 - 9

T2 - 7th Computer Science and Electronic Engineering Conference

Y2 - 24 September 2015 through 25 September 2015

ER -

Video over DSL with LDGM codes for interactive applications

Abstract

Keywords

Access to Document

Fingerprint

Cite this