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High diversity detection using semidefinite relaxation
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0001-6630-243X
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2006 (English)In: 2006 Fortieth Asilomar Conference on Signals, Systems and Computers, 2006, p. 2082-2086Conference paper, Published paper (Refereed)
Abstract [en]

Receiver diversity is an important measure of a receivers robustness towards fading in wireless communications. For the detection of binary symbols transmitted over a general MIMO channel, the semidefinite relaxation (SDR) detector is a computationally attractive alternative to exact ML detection. In the SDR detector, the hard combinatorial optimization problem arising in the ML detector is relaxed into a simple convex optimization problem followed by component wise threshold decisions. In this work, we argue that the SDR detector win provide an increase in diversity over simpler decoder structures such as the ZF and NMSE detectors. Specifically, for the case of uncoded V-BLAST transmission over a MIMO channel with real valued i.i.d. Gaussian channel coefficients we present an analytic result stating that the SDR detector achieves the maximum possible receiver diversity.

Place, publisher, year, edition, pages
2006. p. 2082-2086
Series
Conference record of the asilomar conference on signals, systems and computers, ISSN 1058-6393
Keywords [en]
MIMO systems, Communication systems, Signal processing, Fading channels, Channel coding
National Category
Signal Processing Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-34947DOI: 10.1109/ACSSC.2006.355134ISI: 000246925204044Scopus ID: 2-s2.0-47049089150ISBN: 978-1-4244-0784-2 (print)OAI: oai:DiVA.org:kth-34947DiVA, id: diva2:427449
Conference
40th Asilomar Conference on Signals, Systems and Computers Pacific Grove, CA, OCT 29-NOV 01, 2006
Note
QC 20110628Available from: 2011-06-28 Created: 2011-06-17 Last updated: 2012-01-23Bibliographically approved

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Jaldén, JoakimOttersten, Björn

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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