RS + LDPC-Staircase Codes for the Erasure Channel: Standards, Usage and Performance

Vincent Roca 1, * Mathieu Cunche 1, 2, * Cédric Thienot 3 Jonathan Detchart 4 Jérôme Lacan 4
* Corresponding author
1 PRIVATICS - Privacy Models, Architectures and Tools for the Information Society
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
2 CITI - CITI Centre of Innovation in Telecommunications and Integration of services
3 Chercheur indépendant
4 DMIA - Département de Mathématiques, Informatique, Automatique
Abstract : Application-Level Forward Erasure Correction (AL-FEC) codes are a key element of telecommunication systems. They are used to recover from packet losses when retransmission are not feasible and to optimize the large scale distribution of contents. In this paper we introduce Reed-Solomon/LDPC-Staircase codes, two complementary AL-FEC codes that have recently been recognized as superior to Raptor codes in the context of the 3GPP-eMBMS call for technology. After a brief introduction to the codes, we explain how to design high performance codecs which is a key aspect when targeting embedded systems with limited CPU/battery capacity. Finally we present the performances of these codes in terms of erasure correction capabilities and encoding/decoding speed, taking advantage of the 3GPP-eMBMS results where they have been ranked first.
Mots-clés : Erasure channel AL-FEC codes FLUTE/ALC FECFRAME 3GPP-MBMS
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Conference papers
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Vincent Roca, Mathieu Cunche, Cédric Thienot, Jonathan Detchart, Jérôme Lacan. RS + LDPC-Staircase Codes for the Erasure Channel: Standards, Usage and Performance. 9th IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob 2013), General Chair: Abderrahim Benslimane, University of Avignon, France, Oct 2013, Lyon, France. ⟨hal-00850118⟩

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