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Uplink Performance Analysis of Multicell MU-MIMO with Zero-Forcing Receivers and Perfect CSI
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.
Blekinge Institute of Technology, Sweden.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-7599-4367
2011 (English)In: Proceedings of the IEEE Swedish Communication Technologies Workshop (Swe-CTW), 2011, 40-45 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider the uplink of a multicell multiuser MIMO system. The data detection is done by using the zero-forcing (ZF) technique, assuming the base station has perfect channel state information. We derive an exact closed-form expression for the uplink rate per user. We further study the asymptotic performance of the system. We show that, at high signal-to-noise ratio, the system is interference-limited and hence, we cannot improve the system performance by increasing the transmit power at each user. Instead, by increasing the number of base station antennas, the effects of interference and noise can be reduced, thereby improving the system performance. In particular, we show that, with very large antenna arrays at the base station, the transmit power of each user can be made inversely proportional to the number of base station antennas while maintaining a desired quality-of-service. Numerical results verify our analysis.

Place, publisher, year, edition, pages
2011. 40-45 p.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-71611DOI: 10.1109/Swe-CTW.2011.6082486ISBN: 978-1-4577-1876-2 (print)ISBN: 978-1-4577-1877-9 (print)OAI: oai:DiVA.org:liu-71611DiVA: diva2:451463
Conference
IEEE Swedish Communication Technologies Workshop (Swe-CTW)
Available from: 2011-10-25 Created: 2011-10-25 Last updated: 2016-08-31Bibliographically approved

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Publisher's full textUplink performance analysis of multicell MU-MIMO with zero-forcing receivers and perfect CSI

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Ngo, Hien QuocLarsson, Erik G.

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CiteExportLink to record
Permanent link

Direct link
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