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Adapting the Number of Antennas and Power to Traffic Load: When to Turn on Massive MIMO?
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 WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC), IEEE , 2018Conference paper, Published paper (Refereed)
Abstract [en]

In this work, we consider the downlink of a multiuser multiple-input multiple-output (MIMO) system and aim to find the jointly optimal number of base station (BS) antennas and transmission powers that minimize the power consumption while satisfying each users signal-to-interference-and-noise-ratio (SINR) constraint and the BSs power constraint. Different from prior work, we consider a power consumption model that takes both transmitted and hardware-consumed power into account. We formulate the joint optimization problem for a singlecell system and derive closed-form expressions for the optimal number of BS antennas and transmission powers. The solution can be utilized in practice to turn on and off antennas depending on the traffic load variations. Substantial power savings are demonstrated by simulation.

Place, publisher, year, edition, pages
IEEE , 2018.
Series
IEEE Wireless Communications and Networking Conference, ISSN 1525-3511
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-149758DOI: 10.1109/WCNC.2018.8377286ISI: 000435542402007ISBN: 978-1-5386-1734-2 (print)OAI: oai:DiVA.org:liu-149758DiVA, id: diva2:1234355
Conference
IEEE Wireless Communications and Networking Conference (WCNC)
Note

Funding Agencies|ELLIIT; Swedish Foundation for Strategic Research (SSF)

Available from: 2018-07-24 Created: 2018-07-24 Last updated: 2019-06-28

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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