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Quantized feedback design for MIMO broadcast channels
KTH, School of Electrical Engineering (EES), Communication Theory.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0002-3599-5584
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-7926-5081
2007 (English)In: 2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2007, 1-4 p.Conference paper, Published paper (Refereed)
Abstract [en]

Low-rate feedback design for multiple-input multiple-output broadcast channels is studied under a vector quantization framework. Iterative algorithms are proposed to design the partial feedback link, the scheduler, and the linear precoding code-book. It is demonstrated that the gain due to multi-user diversity can be significant even with heavily quantized channel state information at the transmitter. Our results highlight the potential of multi-user diversity, even with simple schemes and extremely-low-rate feedback.

Place, publisher, year, edition, pages
2007. 1-4 p.
Series
International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
Keyword [en]
fading channels, quantization, broadcast channels, feedback communications, information rates
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-28990DOI: 10.1109/ICASSP.2007.366457ISI: 000248906600001Scopus ID: 2-s2.0-34547534415OAI: oai:DiVA.org:kth-28990DiVA: diva2:395620
Conference
32nd IEEE International Conference on Acoustics, Speech and Signal Processing Honolulu, HI, APR 15-20, 2007
Note
QC 20110207Available from: 2011-02-07 Created: 2011-01-25 Last updated: 2011-11-07Bibliographically approved

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Bengtsson, MatsSkoglund, Mikael

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  • Other locale
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