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Quantized feedback information in orthogonal space-time block coding
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0002-7926-5081
2004 (English)In: IEEE Transactions on Information Theory, ISSN 0018-9448, Vol. 50, no 10, 2473-2482 p.Article in journal (Refereed) Published
Abstract [en]

This work considers how the presence of quantized channel information obtained from a feedback link may be utilized for determining a transmit weighting matrix that improves the performance of a predetermined orthogonal space-time block (OSTB) code. To reduce the effects of feedback delay, quantization errors and feedback channel bit errors, methods based on vector quantization for noisy channels are used in the design of the feedback link. The resulting transmission scheme and feedback link take the imperfect nature of the channel information into account while combining the benefits of conventional beamforming with those provided by OSTB coding.

Place, publisher, year, edition, pages
IEEE Information Theory Society , 2004. Vol. 50, no 10, 2473-2482 p.
Keyword [en]
beamforming, feedback, MIMO, quantization, space-time codes, transmit diversity, transmit diversity, performance, channels, codes
National Category
URN: urn:nbn:se:kth:diva-23751DOI: 10.1109/TIT.2004.834746ISI: 000224067600024ScopusID: 2-s2.0-5144222039OAI: diva2:342450
QC 20100525. QC 20110922. QC 20111215. IEEE International Symposium on Information Theory. WASHINGTON, DC. JUN 24-29, 2001. Replaces IR-S3-SB-0238Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2012-06-07Bibliographically approved

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ReferencesLink to record
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