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On the impact of spatial correlation and precoder design on the performance of MIMO systems with space-time coding
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
Communication Theory, Communications Laboratory, Dresden University of Technology, D-01062 Dresden, Germany.
2009 (English)In: 2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1- 8, PROCEEDINGS, IEEE , 2009, 2741-2744 p.Conference paper (Refereed)
Abstract [en]

The symbol error performance of spatially correlated multi-antenna systems is analyzed herein. When the transmitter only has statistical channel information, the use of space-time block codes still permits spatial multiplexing and mitigation of fading. The statistical information can be used for precoding to optimize some quality measure. Herein, we analyze the performance in terms of the symbol error rate (SER). It is shown analytically that spatial correlation at the receiver decreases the performance both without precoding and with an SER minimizing precoder. Without precoding, correlation should also be avoided at the transmitter side, but with an SER minimizing precoder the performance is actually improved by increasing spatial correlation at the transmitter. The structure of the optimized precoder is analyzed and the asymptotic properties at high and low SNRs are characterized and illustrated numerically.

Place, publisher, year, edition, pages
IEEE , 2009. 2741-2744 p.
, International Conference on Acoustics Speech and Signal Processing (ICASSP), ISSN 1520-6149
Keyword [en]
Linear Precoding, Majorization, MIMO Systems, Orthogonal Space-Time Block Codes, Symbol Error Rate
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-30714DOI: 10.1109/ICASSP.2009.4960190ISI: 000268919201225ScopusID: 2-s2.0-70349192793ISBN: 978-1-4244-2353-8OAI: diva2:402714
IEEE International Conference on Acoustics, Speech and Signal Processing, Taipei, TAIWAN, APR 19-24, 2009
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. QC 20110309Available from: 2011-10-26 Created: 2011-03-04 Last updated: 2012-05-23Bibliographically approved

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