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Network Deployment for Maximal Energy Efficiency in Uplink with Zero-Forcing
Univ Pisa, Italy.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Univ Pisa, Italy; Univ Paris Saclay, France.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-5954-434X
2017 (English)In: GLOBECOM 2017 - 2017 IEEE GLOBAL COMMUNICATIONS CONFERENCE, IEEE , 2017Conference paper, Published paper (Refereed)
Abstract [en]

This work aims to design a cellular network for maximal energy efficiency (EE). In particular, we consider the uplink with multi-antenna base stations and assume that zero-forcing (ZF) combining is used for data detection with imperfect channel state information. Using stochastic geometry and a new lower bound on the average per-user spectral efficiency of the network, we optimize the pilot reuse factor, number of antennas and users per base station. Closed-form expressions are computed from which valuable insights into the interplay between the optimization variables, hardware characteristics, and propagation environment are obtained. Numerical results are used to validate the analysis and make comparisons with a network using maximum ratio (MR) combining. The results show that a Massive MIMO setup arises as the EE-optimal network configuration. In addition, ZF provides higher EE than MR while allowing a smaller pilot reuse factor and a more dense network deployment.

Place, publisher, year, edition, pages
IEEE , 2017.
Series
IEEE Global Communications Conference, ISSN 2334-0983
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-147599DOI:  10.1109/GLOCOM.2017.8254572ISI: 000428054303004ISBN: 978-1-5090-5019-2 (print)OAI: oai:DiVA.org:liu-147599DiVA, id: diva2:1201675
Conference
IEEE Global Communications Conference (GLOBECOM)
Note

Funding Agencies|ERC [305123 MORE]; Swedish Foundation for Strategic Research (SFF)

Available from: 2018-04-26 Created: 2018-04-26 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