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Design of robust linear dispersion codes based on imperfect
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
2006 (English)In: Proceedings European Signal Processing Conference, 2006Conference paper, Published paper (Refereed)
Abstract [en]

This paper concerns the design of codes for multiple-input multiple-output communication systems. The transmission scheme utilizes imperfect channel state information (CSI) in the design, assuming that maximum-likelihood detection is employed at the receiver. It is argued that channel diagonalizing codes are not robust to imperfections in the CSI. A robust non-diagonalizing code with good minimum distance separation between received codewords is proposed. The design is very suitable for systems operating at high data rates since the complexity scales nicely with the number of antennas. Numerical results show that the proposed code outperforms a state-of-the-art diagonalizing precoder.

Place, publisher, year, edition, pages
2006.
Series
European Signal Processing Conference, ISSN 2219-5491
Keyword [en]
Code-words, High data rate, Imperfect channel state information, Imperfect CSI, Linear dispersion codes, Maximum- likelihood detection, Minimum distance, Multiple-input multiple-output communication systems, Numerical results, Precoders, Transmission schemes
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-73193Scopus ID: 2-s2.0-84862597820OAI: oai:DiVA.org:kth-73193DiVA: diva2:488624
Conference
14th European Signal Processing Conference, EUSIPCO 2006. Florence, Italy, September 4-8, 2006
Note

QC 20141104

Available from: 2012-02-01 Created: 2012-02-01 Last updated: 2017-03-27Bibliographically approved

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Ottersten, Björn

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CiteExportLink to record
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