AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams
Joint Authors
Gozálvez, David
Stockhammer, Thomas
Gómez-Barquero, David
Luby, Michael
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-10-18
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Engineering Sciences and Information Technology
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
We investigate the use of application layer FEC protection in DVB-T (Digital Video Broadcasting-Terrestrial) networks for the provision of mobile services.
Mobile reception is characterized by variations of the received signal caused by fast fading and shadowing.
DVB-T was originally designed for fixed and portable reception, and generally does not provide enough quality in mobile environments.
The link layer protection mechanism MPE-FEC (Multi Protocol Encapsulation-Forward Error Correction) was standardized in DVB-H (Digital Video Broadcasting-Handheld) for the protection of mobile TV services.
Although DVB-T itself does not incorporate any link or application layer protection mechanism, AL-FEC (Application layer Forward Error Correction) protection can be introduced in DVB-T in a backwards compatible way.
By means of AL-FEC, it is possible to improve the robustness of DVB-T services for the provision of mobile TV.
In this paper, we explain the concept of AL-FEC protection in DVB-T and evaluate its performance by means of laboratory measurements and dynamic simulations with shadowing.
We study different configurations of AL-FEC and compare its performance with MPE-FEC.
In this paper, we discuss some implementation aspects of AL-FEC in real scenarios and propose an implementation based on Raptor codes and hash sequences.
We also present results obtained by a first AL-FEC prototype for DVB-T that demonstrates the feasibility of the approach.
American Psychological Association (APA)
Gozálvez, David& Gómez-Barquero, David& Stockhammer, Thomas& Luby, Michael. 2009. AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams. International Journal of Digital Multimedia Broadcasting،Vol. 2009, no. 2009, pp.1-10.
https://search.emarefa.net/detail/BIM-485207
Modern Language Association (MLA)
Gozálvez, David…[et al.]. AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams. International Journal of Digital Multimedia Broadcasting No. 2009 (2009), pp.1-10.
https://search.emarefa.net/detail/BIM-485207
American Medical Association (AMA)
Gozálvez, David& Gómez-Barquero, David& Stockhammer, Thomas& Luby, Michael. AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams. International Journal of Digital Multimedia Broadcasting. 2009. Vol. 2009, no. 2009, pp.1-10.
https://search.emarefa.net/detail/BIM-485207
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-485207