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Optimal Downlink BeamformingUsing Semidefinite Optimization
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-3599-5584
KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
1999 (English)In: Proc. of 37th Annual Allerton Conference on Communication,Control, and Computing, 1999, 987-996 p.Conference paper, Published paper (Other academic)
Abstract [en]

When using antenna arrays at the base station of a cellular system, one critical aspectis the transmission strategy. An optimal choice of beamformers for simultaneous transmissionto several co-channel users must be solved jointly for all users and base stations in anarea. We formulate an optimal transmit strategy and show how the solution can be calculatedefficiently using interior point methods for semidefinite optimization. The algorithmminimizes the total transmitted power under certain constraints to guarantee a specificquality of service. The method provides large flexibility in the choice of constraints andcan be extended to be robust to channel perturbations.

Place, publisher, year, edition, pages
1999. 987-996 p.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-143884OAI: oai:DiVA.org:kth-143884DiVA: diva2:709384
Conference
37th Annual Allerton Conference on Communication, Control, and Computing
Note

QC 20140522

Available from: 2014-04-01 Created: 2014-04-01 Last updated: 2014-05-22Bibliographically approved

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fulltext(208 kB)810 downloads
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Type fulltextMimetype application/pdf

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Bengtsson, MatsOttersten, Björn

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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