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Estimation of Kronecker Structured Channel Covariances Using Training Data
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: 0000-0002-6855-5868
2007 (English)In: Proceedings European Signal Processing Conference, 2007, 1201-1205 p.Conference paper, Published paper (Refereed)
Abstract [en]

The problem of estimating second order statistics for MIMO channels is treated. It is assumed that the so called Kronecker-model holds. This implies that the channel covariance is the Kronecker product of two covariance matrices associated with the transmit and receive array, respectively. The proposed estimator uses training data from a number of signal blocks to compute the estimate. This is in contrast to methods that assume that the channel realizations are directly available, or possible to estimate almost without error. It is also demonstrated how methods that make use of the training data indirectly via channel estimates can be biased. An estimator is derived that can, in an asymptotically optimal way, use, not only the structure implied by the Kronecker assumption, but also linear structure on the transmit- and receive covariance matrices. The performance of the proposed estimator is analyzed and numerical simulations illustrate the results and also provide insight into the small sample behavior of the proposed method.

Place, publisher, year, edition, pages
2007. 1201-1205 p.
Keyword [en]
MIMO channels, second order statistics, Kronecker-model, channel covariance, channel realizations, asymptotically optimal
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-82555Scopus ID: 2-s2.0-84863740526OAI: oai:DiVA.org:kth-82555DiVA: diva2:498351
Conference
European Signal Processing Conference, Poznan, Poland, September 3-7, 2007
Note
QC 20120516Available from: 2012-02-12 Created: 2012-02-12 Last updated: 2012-05-16Bibliographically approved

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Scopushttp://www.eurasip.org/Proceedings/Eusipco/Eusipco2007/Papers/c1l-c05.pdf

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Jansson, Magnus

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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