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Shaping EXIT functions of turbo codes
University of South Australia. (Institute for Telecommunication Research)
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7182-9543
University of South Australia. (Institute for Telecommunication Research)
2008 (English)In: 2008 AUSTRALIAN COMMUNICATIONS THEORY WORKSHOP, NEW YORK: IEEE , 2008, 119-124 p.Conference paper (Refereed)
Abstract [en]

This paper investigates the shaping of the extrinsic information transfer (EXIT) functions of parallel turbo codes, when the turbo code is used as an outer code in a serially concatenated scheme. As opposed to other work, we consider the overall EXIT function of the turbo decoder and not the EXIT chart for the component codes. Three methods for shaping are investigated: (i) individual puncturing of the systematic part and the two parity parts of the turbo codes, (ii) puncturing of the overall turbo code, and (iii) repetition of the overall turbo code. For each case, the EXIT function of the resulting turbo code is computed from the EXIT function of its component codes. Exact results are obtained for the binary erasure channel.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2008. 119-124 p.
National Category
URN: urn:nbn:se:kth:diva-28976DOI: 10.1109/AUSCTW.2008.4460832ISI: 000256382900021ScopusID: 2-s2.0-77956374908OAI: diva2:396564
9th Australian Communication Theory Workshop Christchurch, NEW ZEALAND, JAN 30-FEB 01, 2008

QC 20110210

Available from: 2011-02-10 Created: 2011-01-25 Last updated: 2016-05-23Bibliographically approved

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Rasmussen, Lars Kildehöj
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Communication TheoryACCESS Linnaeus Centre

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