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Multi-threshold top - Full-diversity vector perturbation precodingwith finite-rate feedforward
2008 (English)In: 2008 42ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, 2008, 428-432 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider vector perturbation (VP) precoding for a multiple antenna broadcast scenario with Multiple noncooperative users. Under an instantaneous transmit power constraint, VP precoding requires the feedforward of a power normalization factor to the users. Simple quantization of the power normalization factor is shown to result in an error floor. To overcome this problem, we propose a new precoding scheme that uses a finite set of power normalization factors and avoids transmission at all when the available power is not sufficient to perform channel equalization at the transmit side. With this scheme, full diversity can be achieved (even with imperfect channel state information) while simultaneously significant amounts of transmit power can be saved.

Place, publisher, year, edition, pages
2008. 428-432 p.
Series
Conference record of the Asilomar conference on signals, systems and computers, ISSN 1058-6393
National Category
Computer Science Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-34890DOI: 10.1109/ACSSC.2008.5074440ISI: 000274551000081ISBN: 978-1-4244-2940-0 (print)OAI: oai:DiVA.org:kth-34890DiVA: diva2:427916
Conference
42nd Asilomar Conference on Signals, Systems and Computers Pacific Grove, CA, OCT 26-29, 2008
Note
QC 20110629Available from: 2011-06-29 Created: 2011-06-17 Last updated: 2011-06-29Bibliographically approved

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Jaldén, Joakim

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CiteExportLink to record
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  • apa
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  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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  • text
  • asciidoc
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