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Performance of Massive MIMO Uplink With Zero-Forcing Receivers Under Delayed Channels
Imperial Coll London, England; University of Edinburgh, Scotland.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering. Queen’s University Belfast, Belfast, Northern Ireland.
University of Edinburgh, UK.
2017 (English)In: IEEE Transactions on Vehicular Technology, ISSN 0018-9545, E-ISSN 1939-9359, Vol. 66, no 4, 3158-3169 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we analyze the performance of the up-link communication of massive multicell multiple-input multiple-output (MIMO) systems under the effects of pilot contamination and delayed channels because of terminal mobility. The base stations (BSs) estimate the channels through the uplink training and then use zero-forcing (ZF) processing to decode the transmit signals from the users. The probability density function (pdf) of the signal-to-interference-plus-noise ratio (SINR) is derived for any finite number of antennas. From this pdf, we derive an achievable ergodic rate with a finite number of BS antennas in closed form. Insights into the impact of the Doppler shift (due to terminal mobility) at the low signal-to-noise ratio (SNR) regimes are exposed. In addition, the effects on the outage probability are investigated. Furthermore, the power scaling law and the asymptotic performance result by infinitely increasing the numbers of antennas and terminals (while their ratio is fixed) are provided. The numerical results demonstrate the performance loss for various Doppler shifts. Among the interesting observations revealed is that massive MIMO is favorable even under channel aging conditions.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2017. Vol. 66, no 4, 3158-3169 p.
Keyword [en]
Delayed channels; massive multiple-input multiple-output (MIMO); multiuser MIMO system; zero-forcing (ZF) processing
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-137616DOI: 10.1109/TVT.2016.2594031ISI: 000399749500021OAI: oai:DiVA.org:liu-137616DiVA: diva2:1098086
Note

Funding Agencies|European Community of the European Commission [330806, 619647]; U.K. Engineering and Physical Sciences Research Council [EP/L025299/1]; Swedish Research Council (VR); ELLIIT

Available from: 2017-05-23 Created: 2017-05-23 Last updated: 2017-05-23

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CiteExportLink to record
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Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
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  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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