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Cross-layer enhancement of error control techniques for adaptation layers of DVB satellites

Cantillo, Juan and Lacan, Jérôme and Buret, Isabelle Cross-layer enhancement of error control techniques for adaptation layers of DVB satellites. (2006) International Journal of Satellite Communications and Networking, 2 (6). 579-590. ISSN 1542-0973

(Document in English)

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Official URL: http://dx.doi.org/10.1002/sat.861


This paper assesses the way error control is managed jointly by Forward Error Codes (FEC) and Cyclic Redundancy Checks (CRC) in the lower layers of today’s Digital Video Broadcasting (DVB) satellites. Mathematical and simulation results clearly show that the outer block codes of the coding schemes used in DVB-S and DVB-S2 (Reed-Solomon and Bose-Chaudhuri-Hocquenghem, respectively) can provide very accurate error-detection information to the receiver in addition to their basic correction task at virtually no cost, making an uncorrected error after decoding an extremely improbable event. For this reason, the workload of CRCs can be ensured safely by the FEC subsystem if a dedicated function allowing the physical layer to share its decoding information with the adaptation layer is set. This particular crosslayer mechanism would allow freeing up the bandwidth currently used by CRCs -which adds up to 10 % for more than 35 % of the total number of IP packets- and pave the way for an enhanced transport of IP over DVB-S2.

Item Type:Article
HAL Id:hal-03615545
Audience (journal):Special issue journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole Nationale de l'Aviation Civile - ENAC (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Collins Aerospace (FRANCE)
Other partners > Thales (FRANCE)
Other partners > Télécom Paris (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Direction Générale de l’Aviation Civile - DGAC (FRANCE)
Laboratory name:
Thales Alenia Space
Deposited On:03 Jun 2008 16:15

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