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LDC in MIMO Ricean channels: Optimal transmit strategy with MMSE detection
KTH, School of Electrical Engineering (EES), Signal Processing.
2008 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 56, no 1, 313-328 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we study a MIMO system with a transmitter using a linear dispersion code (LDC) and a linear minimum mean square-error (MMSE) detector at the receiver in a Ricean flat-fading environment. We assume that the receiver has perfect channel state information and the transmitter knows only the mean channel matrix either by feedback or channel estimation. The focus of our work is the analysis of the optimal transmit strategy using different types of LDC. On the one hand, we consider spatial multiplexing schemes that achieve high data rates, but sacrifice diversity. On the other hand, we have schemes that achieve full diversity like quasi-orthogonal space-time block codes or orthogonal space-time block code. Depending on the LDC in use, the optimization problem is either convex or nonconvex. For both of these classes of LDC, we first derive the properties of the average normalized MSE and then analyze the impact of the mean component on the MSE, the optimal transmit strategy and the optimal power allocation. Finally, we derive some bounds on the error rate performance for different scenarios with the MMSE receiver.

Place, publisher, year, edition, pages
2008. Vol. 56, no 1, 313-328 p.
Keyword [en]
Block codes, Channel estimation, Channel state information, Data communication systems, Diversity reception, Error detection, Fading channels, Mean square error, Transmitters, Linear dispersion code, Minimum mean square-error detection, Ricean channel, Space-time block codes, Channel coding
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-154884DOI: 10.1109/TSP.2007.900753ISI: 000251947200027Scopus ID: 2-s2.0-37749027141OAI: oai:DiVA.org:kth-154884DiVA: diva2:759089
Note

QC 20141029

Available from: 2014-10-29 Created: 2014-10-28 Last updated: 2017-12-05Bibliographically approved

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CiteExportLink to record
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  • apa
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  • vancouver
  • Other style
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  • de-DE
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  • en-US
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  • Other locale
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