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2009•Unpublished venueRequires access

Mobile reception of DVB-T services by means of AL-FEC protection

David Gozálvez, David Gómez‐Barquero, Thomas Stockhammer

Open publisher page 7 citations

Abstract

This paper proposes and investigates the use of Application Layer Forward Error Correction (AL-FEC) based on Raptor codes for digital television DVB-T (Digital Video Broadcasting - Terrestrial) services. By means of AL-FEC it is possible to increase the robustness of traditional DVB-T transmissions for the provision of mobile TV. The AL-FEC protection is introduced in a backwards compatible way with the legacy DVB-T standard and does not alter the originally transmitted multimedia data. In order to evaluate the performance of AL-FEC in mobile channel environments, we employ laboratory measurements along with dynamic shadowing simulations. The paper presents direct comparisons with the link layer protection mechanism of DVB-H - referred to as MPE-FEC (Multi Protocol Encapsulation - Forward Error Correction) - and illustrates the link margin gains that can be achieved in mobile DVB-T reception by means of AL-FEC.

About this research paper

What this paper is about

This paper proposes and investigates the use of Application Layer Forward Error Correction (AL-FEC) based on Raptor codes for digital television DVB-T (Digital Video Broadcasting - Terrestrial) services. By means of AL-FEC it is possible to increase the robustness of traditional DVB-T transmissions for the provision of mobile TV. The AL-FEC protection is introduced in a backwards compatible way with the legacy DVB-T standard and does not alter the originally transmitted multimedia data. In order to evaluate the performance of AL-FEC in mobile channel environments, we employ laboratory measurements along with dynamic shadowing simulations. The paper presents direct comparisons with the link layer protection mechanism of DVB-H - referred to as MPE-FEC (Multi Protocol Encapsulation - Forward Error Correction) - and illustrates the link margin gains that can be achieved in mobile DVB-T reception by means of AL-FEC.

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Available abstract

This paper proposes and investigates the use of Application Layer Forward Error Correction (AL-FEC) based on Raptor codes for digital television DVB-T (Digital Video Broadcasting - Terrestrial) services. By means of AL-FEC it is possible to increase the robustness of traditional DVB-T transmissions for the provision of mobile TV. The AL-FEC protection is introduced in a backwards compatible way with the legacy DVB-T standard and does not alter the originally transmitted multimedia data. In order to evaluate the performance of AL-FEC in mobile channel environments, we employ laboratory measurements along with dynamic shadowing simulations. The paper presents direct comparisons with the link layer protection mechanism of DVB-H - referred to as MPE-FEC (Multi Protocol Encapsulation - Forward Error Correction) - and illustrates the link margin gains that can be achieved in mobile DVB-T reception by means of AL-FEC.

Key concepts: Forward error correction, Digital Video Broadcasting, Computer science, Computer network, Robustness (evolution), Raptor code, DVB-T, Digital multimedia broadcasting

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