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Some results on 16-QAM MIMO detection using semidefinite relaxation
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0001-6630-243X
2008 (English)In: 2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 2008, 2673-2676 p.Conference paper, Published paper (Refereed)
Abstract [en]

Semidefinite relaxation (SDR) is a high-performance efficient approach to MIMO detection especially for the BPSK or QPSK constellations. Recently, a number of research endeavors have focused on extending SDR to the case of 16-QAM constellations. This paper reports two interesting and useful results on this problem. First, we show that two of the existing 16-QAM SDR receivers, namely the polynomial-inspired SDR (PI-SDR) and bound-constrained SDR (BC-SDR) methods, are equivalent. Second, we develop a specialized interior-point algorithm for the implementation of BC-SDR. The proposed algorithm is computationally efficient exploiting the BC-SDR structures, and enables us to handle larger problem sizes in practice.

Place, publisher, year, edition, pages
2008. 2673-2676 p.
Series
International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
Keyword [en]
MIMO detection, semidefinite relaxation, convex optimization
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-34915DOI: 10.1109/ICASSP.2008.4518199ISI: 000257456701330ISBN: 978-1-4244-1483-3 (print)OAI: oai:DiVA.org:kth-34915DiVA: diva2:427195
Conference
33rd IEEE International Conference on Acoustics, Speech and Signal Processing Las Vegas, NV, MAR 30-APR 04, 2008
Note
QC 20110627Available from: 2011-06-27 Created: 2011-06-17 Last updated: 2011-06-27Bibliographically approved

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Jalden, Joakim

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  • apa
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Output format
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