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Massive MIMO in Spectrum Sharing Networks: Achievable Rate and Power Efficiency
UCL, England.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Queen Mary University of London, England.
Queens University of Belfast, North Ireland.
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2017 (English)In: IEEE Systems Journal, ISSN 1932-8184, E-ISSN 1937-9234, Vol. 11, no 1, 20-31 p.Article in journal (Refereed) Published
Abstract [en]

Massive multiple input multiple output (MIMO) is one of the key technologies for fifth generation and can substantially improve energy and spectrum efficiencies. This paper explores the potential benefits of massive MIMO in spectrum sharing networks. We consider a multiuser MIMO primary network, with N-P-antenna primary base station (PBS) andK singleantenna primary users (PUs), and a multiple-input-single-output secondary network, with N-S-antenna secondary base station and a single-antenna secondary user. Using the proposed model, we derive a tight closed-form expression for the lower bound on the average achievable rate, which is applicable to arbitrary system parameters. By performing large-system analysis, we examine the impact of large number of PBS antennas and large number of PUs on the secondary network. It is shown that, when N-P and K grow large, N-S must be proportional to lnK or larger, to enable successful secondary transmission. In addition, we examine the impact of imperfect channel state information on the secondary network. It is shown that the detrimental effect of channel estimation errors is significantly mitigated as N-S grows large.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2017. Vol. 11, no 1, 20-31 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-136634DOI: 10.1109/JSYST.2015.2449289ISI: 000397779700004OAI: oai:DiVA.org:liu-136634DiVA: diva2:1089851
Note

Funding Agencies|Engineering and Physical Sciences Research Council [EP/M016005/1]; Newton Fund Institutional Links Grant [172719890]

Available from: 2017-04-21 Created: 2017-04-21 Last updated: 2017-04-21

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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