AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams
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 fi...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Digital Multimedia Broadcasting |
| Online Access: | http://dx.doi.org/10.1155/2009/614178 |
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| author | David Gozálvez David Gómez-Barquero Thomas Stockhammer Michael Luby |
| author_facet | David Gozálvez David Gómez-Barquero Thomas Stockhammer Michael Luby |
| author_sort | David Gozálvez |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-4d7b42e5b7044558b1497e20a599d6d5 |
| institution | Kabale University |
| issn | 1687-7578 1687-7586 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Digital Multimedia Broadcasting |
| spelling | doaj-art-4d7b42e5b7044558b1497e20a599d6d52025-02-03T01:21:38ZengWileyInternational Journal of Digital Multimedia Broadcasting1687-75781687-75862009-01-01200910.1155/2009/614178614178AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport StreamsDavid Gozálvez0David Gómez-Barquero1Thomas Stockhammer2Michael Luby3Universidad Politécnica de Valencia (UPV), Mobile Communications Group, 46022 Valencia, SpainUniversidad Politécnica de Valencia (UPV), Mobile Communications Group, 46022 Valencia, SpainQUALCOMM Incorporated, Santa Clara, CA 95051, USAQUALCOMM Incorporated, Santa Clara, CA 95051, USAWe 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.http://dx.doi.org/10.1155/2009/614178 |
| spellingShingle | David Gozálvez David Gómez-Barquero Thomas Stockhammer Michael Luby AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams International Journal of Digital Multimedia Broadcasting |
| title | AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams |
| title_full | AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams |
| title_fullStr | AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams |
| title_full_unstemmed | AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams |
| title_short | AL-FEC for Improved Mobile Reception of MPEG-2 DVB-T Transport Streams |
| title_sort | al fec for improved mobile reception of mpeg 2 dvb t transport streams |
| url | http://dx.doi.org/10.1155/2009/614178 |
| work_keys_str_mv | AT davidgozalvez alfecforimprovedmobilereceptionofmpeg2dvbttransportstreams AT davidgomezbarquero alfecforimprovedmobilereceptionofmpeg2dvbttransportstreams AT thomasstockhammer alfecforimprovedmobilereceptionofmpeg2dvbttransportstreams AT michaelluby alfecforimprovedmobilereceptionofmpeg2dvbttransportstreams |