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Computation Limited Matrix Inversion Using Neumann Series Expansion for Massive MIMO
Linköping University, Department of Electrical Engineering, Computer Engineering. Linköping University, Faculty of Science & Engineering. (Datorteknik)ORCID iD: 0000-0002-4249-7858
Linköping University, Department of Electrical Engineering, Computer Engineering. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-3470-3911
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
2017 (English)In: 2017 FIFTY-FIRST ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS, 2017, p. 466-469Conference paper, Published paper (Refereed)
Abstract [en]

Neumann series expansion is a method for performing matrix inversion that has received a lot of interest in the context of massive MIMO systems. However, the computational complexity of the Neumann methods is higher than for the lowest complexity exact matrix inversion algorithms, such as LDL, when the number of terms in the series is three or more. In this paper, the Neumann series expansion is analyzed from a computational perspective for cases when the complexity of performing exact matrix inversion is too high. By partially computing the third term of the Neumann series, the computational complexity can be reduced. Three different preconditioning matrices are considered. Simulation results show that when limiting the total number of operations performed, the BER performance of the tree different preconditioning matrices is the same.

Place, publisher, year, edition, pages
2017. p. 466-469
Keywords [en]
Massive MIMO, Matrix inversion
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-151315DOI: 10.1109/ACSSC.2017.8335382ISI: 000442659900082ISBN: 978-1-5386-1823-3 (electronic)OAI: oai:DiVA.org:liu-151315DiVA, id: diva2:1248917
Conference
51th Asilomar Conference on Signals, Systems, and Computers (ASILOMARSSC)
Available from: 2018-09-17 Created: 2018-09-17 Last updated: 2018-09-21

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Gustafsson, OscarLarsson, Erik G.

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CiteExportLink to record
Permanent link

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