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SEMI-CLOSED FORM SOLUTION FOR SUM RATE MAXIMIZATION IN DOWNLINK MULTIUSER MIMO VIA LARGE-SYSTEM ANALYSIS
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-5954-434X
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
2018 (English)In: 2018 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE , 2018, p. 3699-3703Conference paper, Published paper (Refereed)
Abstract [en]

This work introduces a new approach to solve the joint precoding and power allocation for sum rate maximization problem in the downlink multiuser MIMO by a combination of random matrix theory and optimization theory. The new approach results in a simplified problem that, though non-convex, obeys a simple separable structure. The sum rate maximization problem is decomposed into different single-variable optimization problems that can be solved in parallel. A water-filling-like solution is found, which can be applied under some mild conditions on the SNRs of the users. The proposed scheme provides large gains over heuristic solutions when the number of users in the cell is large, which suggests the applicability in massive MIMO systems.

Place, publisher, year, edition, pages
IEEE , 2018. p. 3699-3703
Keywords [en]
Beamforming; Multiuser MIMO; Massive MIMO; Optimization; Deterministic Equivalence
National Category
Computational Mathematics
Identifiers
URN: urn:nbn:se:liu:diva-152418DOI: 10.1109/ICASSP.2018.8462386ISI: 000446384603173ISBN: 978-1-5386-4658-8 (electronic)ISBN: 978-1-5386-4659-5 (print)OAI: oai:DiVA.org:liu-152418DiVA, id: diva2:1259533
Conference
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Note

Funding Agencies|Swedish Research Council (VR); Linkoping University Center for Industrial Information Technology (CENIIT); ELLIIT

Available from: 2018-10-30 Created: 2018-10-30 Last updated: 2019-06-28

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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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  • Other style
More styles
Language
  • de-DE
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  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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