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Erasure Codes for Space Communications: Recent Findings and New Challenges

Garrammone, Giuliano and De Cola, Tomaso and Matuz, Balázs and Liva, Gianluigi (2012) Erasure Codes for Space Communications: Recent Findings and New Challenges. ASMS2012/SPSC2012, 5 Sep 2012 - 7 Sep 2012, Baiona, Spain.

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Abstract

The use of erasure codes in space communications has proved to be promising in order to make communication more robust against both independent and correlated data losses. In particular, erasure codes are an appealing solution to provide space communications with increased reliability, especially in scenarios where large latencies make the use of automatic repeat request (ARQ) strategies problematic. In this regard, preliminary studies on the use of binary low-density parity-check (LDPC) codes under maximum likelihood (ML)/iterative (IT) decoding have been carried out showing the performance benefit they can bring over traditional schemes based on retransmissions. This paper extends the analysis conducted in previous studies towards non-binary LDPC codes. Performance assessment is carried out with respect to reliability metrics (codeword error rate) and encoding/decoding complexity, taking into consideration the limitations of space communications in terms of storage and processing capabilities. Finally, the paper sketches some design guidelines on the integration of the proposed codes into the Consultative Committee for Space Data Systems (CCSDS) protocol stack, implemented as extension of the Licklider Transmission Protocol (LTP).

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Erasure Codes for Space Communications: Recent Findings and New Challenges
Authors:
AuthorsInstitution or Email of Authors
Garrammone, Giulianogiuliano.garrammone@dlr.de
De Cola, Tomasotomaso.decola@dlr.de
Matuz, Balázsbalazs.matuz@dlr.de
Liva, Gianluigigianluigi.liva@dlr.de
Date:2012
Status:Published
Keywords:Erasure codes, LDPC codes
Event Title:ASMS2012/SPSC2012
Event Location:Baiona, Spain
Event Type:international Conference
Event Dates:5 Sep 2012 - 7 Sep 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Communication, Navigation and Surveillance
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Digital Networks
Deposited By: Giuliano Garrammone
Deposited On:19 Sep 2012 09:54
Last Modified:06 Feb 2013 09:20

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