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Belief propagation for coded multiuser detection
Chalmers University of Technology.
University of South Australia. (Institute for Telecommunications Research)ORCID iD: 0000-0001-7182-9543
2006 (English)In: 2006 IEEE International Symposium on Information Theory, Vols 1-6, Proceedings, 2006, 1919-1923 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper a simplified parallel belief propagation (BP) algorithm is suggested as a suboptimal soft-input soft-output multiuser detector in an iterative multiuser decoding scheme. The iterative decoding scheme itself is based on applying an outer BP algorithm for message passing between the BP multiuser detector and the single-user decoders. The performance of the iterative decoding process is investigated based on parallel scheduling of the outer BP algorithm. In addition, we analyze the large system BER performance of the corresponding multiuser decoding algorithms. By making Gaussian assumptions on the output of the single-user decoders and the BP multiuser detector, we derive expressions which describe approximately the BER performance of the algorithms. Finally, numerical examples are presented, demonstrating the accuracy of this approximation

Place, publisher, year, edition, pages
2006. 1919-1923 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-62630DOI: 10.1109/ISIT.2006.261815ISI: 000245289703093ISBN: 978-1-4244-0505-3 (print)OAI: oai:DiVA.org:kth-62630DiVA: diva2:480781
Conference
IEEE International Symposium on Information Theory. Seattle, WA. JUL 09-14, 2006
Note
QC 20120120Available from: 2012-01-19 Created: 2012-01-19 Last updated: 2012-01-20Bibliographically approved

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Rasmussen, Lars Kildehöj

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CiteExportLink to record
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  • apa
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  • nn-NB
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  • Other locale
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  • asciidoc
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