liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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
On the Performance of Cell-Free Massive MIMO with Short-Term Power Constraints
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering. Ericsson Research, Wireless Access Networks, Linkoping, Sweden.
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: 0000-0002-7599-4367
Ericsson Research, Wireless Access Networks, Linkoping, Sweden.
2016 (English)In: 2016 IEEE 21ST INTERNATIONAL WORKSHOP ON COMPUTER AIDED MODELLING AND DESIGN OF COMMUNICATION LINKS AND NETWORKS (CAMAD), IEEE , 2016, 225-230 p.Conference paper (Refereed)
Abstract [en]

In this paper we consider a time-division duplex cell-free massive multiple-input multiple-output (MIMO) system where many distributed access points (APs) simultaneously serve many users. A normalized conjugate beamforming scheme, which satisfies short-term average power constraints at the APs, is proposed and analyzed taking into account the effect of imperfect channel information. We derive an approximate closed-form expression for the per-user achievable downlink rate of this scheme. We also provide, analytically and numerically, a performance comparison between the normalized conjugate beamforming and the conventional conjugate beamforming scheme in [1] (which satisfies long-term average power constraints). Normalized conjugate beamforming scheme reduces the beamforming uncertainty gain, which comes from the users lack of the channel state information knowledge, and hence, it improves the achievable downlink rate compared to the conventional conjugate beamforming scheme.

Place, publisher, year, edition, pages
IEEE , 2016. 225-230 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-134522DOI: 10.1109/CAMAD.2016.7790362ISI: 000391562900042ISBN: 978-1-5090-2558-9 OAI: oai:DiVA.org:liu-134522DiVA: diva2:1074321
Conference
21st IEEE International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)
Available from: 2017-02-15 Created: 2017-02-15 Last updated: 2017-02-15

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Interdonato, GiovanniNgo, Hien QuocLarsson, Erik G
By organisation
Communication SystemsFaculty of Science & Engineering
Telecommunications

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 11 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • 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