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Hardware Design and Optimal ADC Resolution for Uplink Massive MIMO Systems
Linköping University, Department of Electrical Engineering, Communication Systems.ORCID iD: 0000-0003-2425-952X
Linköping University, Department of Electrical Engineering, Communication Systems.ORCID iD: 0000-0002-5954-434X
Queen’s University Belfast. (Institute of Electronics, Communications and Information Technology (ECIT))ORCID iD: 0000-0001-9235-7741
2016 (English)In: IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), Rio de Janeiro, Brazil, July 2016., 2016, 1-5 p.Conference paper (Refereed)
Abstract [en]

This work focuses on the hardware design for the efficient operation of Massive multiple-input multiple-output (MIMO) systems. A closed-form uplink achievable data rate expression is derived considering imperfect channel state information (CSI) and hardware impairments. We formulate an optimization problem to maximize the sum data rate subject to a constraint on the total power consumption. A general power consumption model accounting for the level of hardware impairments is utilized. The optimization variables are the number of base station (BS) antennas and the level of impairments per BS antenna. The resolution of the analog-to-digital converter (ADC) is a primary source of such impairments. The results show the trade-off between the number of BS antennas and the level of hardware impairments, which is important for practical hardware design. Moreover, the maximum power consumption can be tuned to achieve maximum energy efficiency (EE). Numerical results suggest that the optimal level of hardware impairments yields ADCs of 4 to 5 quantization bits.

Place, publisher, year, edition, pages
2016. 1-5 p.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-137324OAI: oai:DiVA.org:liu-137324DiVA: diva2:1095212
Conference
IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM) 2016.
Available from: 2017-05-12 Created: 2017-05-12 Last updated: 2017-05-12

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CiteExportLink to record
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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