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Spatial loading based on channel covariance feedback and channel estimates
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
2015 (English)In: European Signal Processing Conference, European Signal Processing Conference, EUSIPCO , 2015, p. 519-522Conference paper, Published paper (Refereed)
Abstract [en]

Transmission schemes for flat multi-input, multi-output (MIMO) channels are well established for the cases where perfect channel state information or no channel state information is available at the transmitter. However, communication over channels where the transmitter has access to partial or imperfect information has received less attention. If exploited, such information has the potential of improving system performance and reducing the bandwidth requirements of feedback links or the required quality of channel estimates. Herein, a simple design scheme is introduced, that approximately maximizes the data rates of MIMO communication systems where the transmitter has access to partial channel state information in the form of covariance feedback or erroneous channel estimates. An algorithm is presented which is computationally attractive and performance gains are shown when compared to systems not using this information.

Place, publisher, year, edition, pages
European Signal Processing Conference, EUSIPCO , 2015. p. 519-522
Keywords [en]
Channel state information, Communication channels (information theory), Feedback, MIMO systems, Transmitters, Bandwidth requirement, Covariance feedback, Imperfect information, MIMO communication system, No channel state information, Partial channel state information, Perfect channel state information, Transmission schemes, Signal processing
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-194635Scopus ID: 2-s2.0-84979894501OAI: oai:DiVA.org:kth-194635DiVA, id: diva2:1050410
Conference
12th European Signal Processing Conference, EUSIPCO 2004, 6 September 2004 through 10 September 2004
Note

QC 20161129

Available from: 2016-11-29 Created: 2016-10-31 Last updated: 2016-11-29Bibliographically approved

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CiteExportLink to record
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Citation style
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