Next Article in Journal
Face Liveness Detection Using Dynamic Local Ternary Pattern (DLTP)
Next Article in Special Issue
Continuity-Aware Scheduling Algorithm for Scalable Video Streaming
Previous Article in Journal
An Artificial Bee Colony-Based COPE Framework for Wireless Sensor Network
Previous Article in Special Issue
An Efficient Decoder for the Recognition of Event-Related Potentials in High-Density MEG Recordings
Article Menu

Export Article

Open AccessArticle
Computers 2016, 5(2), 9; doi:10.3390/computers5020009

Video over DSL with LDGM Codes for Interactive Applications

1
School of Computer Science and Electronic Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
2
Grupo de Tratamiento de Imágenes, Universidad Politécnica de Madrid, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Pedro Alonso Jordá
Received: 31 March 2016 / Revised: 4 May 2016 / Accepted: 17 May 2016 / Published: 23 May 2016
View Full-Text   |   Download PDF [450 KB, uploaded 23 May 2016]   |  

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. View Full-Text
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 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
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Al-Jobouri, L.; Casu, F.; Fleury, M.; Cabrera, J. Video over DSL with LDGM Codes for Interactive Applications. Computers 2016, 5, 9.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Computers EISSN 2073-431X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top