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Channel dependent termination of the semidefinite relaxation detector
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0001-6630-243X
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
2006 (English)In: 2006 IEEE International Conference on Acoustics, Speech, and Signal Processing, NEW YORK, NY: IEEE , 2006, 185-188 p.Conference paper (Refereed)
Abstract [en]

We study the problem of semidefinite relaxation (SDR) for detection of symbols transmitted over a general MIMO channel. In the SDR detector the maximum likelihood detection problem is relaxed into a semidefinite program (SDP) which is solved numerically using an interior-point path-following algorithm. Herein, we provide a criteria which, based on the channel matrix realization, determine the accuracy required by the SDP solver to give a good bit error rate performance of the overall SDR detector. This also reduce the complexity of the SDR detector as it limits the number of interior iterations required in the SDP solver. The performance is demonstrated through simulations.

Place, publisher, year, edition, pages
NEW YORK, NY: IEEE , 2006. 185-188 p.
, International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
Keyword [en]
MIMO channel, bit error rate, channel dependent termination, channel matrix realization, interior-point path-following algorithm, maximum likelihood detection problem, semidefinite relaxation detector, AWGN, Symmetric matrices
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-34941DOI: 10.1109/ICASSP.2006.1660936ISI: 000245062900047ScopusID: 2-s2.0-33947687087OAI: diva2:427469
31st IEEE International Conference on Acoustics, Speech and Signal Processing Toulouse, FRANCE, MAY 14-19, 2006
QC 20110628Available from: 2011-06-28 Created: 2011-06-17 Last updated: 2012-01-23Bibliographically approved

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