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A Power Efficient Pilot Design for Multi-cell Massive MIMO Systems
Department of Design Engineering & Mathematics, Middlesex University, London.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Department of Informatics, King’s College London, London.
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we address the pilot contamination problem in multi-cell massive MIMO systems. Particularly, we propose a pilot design scheme that simultaneously minimizes the channel estimation errors of all base stations (BSs) and the total pilot power consumption of all users subject to the transmit power constraint for every user in the network. We decompose the proposed non-convex problem into distributed optimization problems to be solved at each BS, assuming the knowledge of pilot signals of the other BSs. Then, we introduce a successive optimization approach to cast each distributed optimization problem into a convex linear matrix inequality form. Simulation results confirm that the proposed approach significantly reduces pilot power while maintain the same level of channel estimation error as a recent work in [1].

Place, publisher, year, edition, pages
California: Institute of Electrical and Electronics Engineers (IEEE), 2018.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-154875DOI: 10.1109/GlobalSIP.2018.8646568ISI: 000462968100167ISBN: 978-1-7281-1295-4 (electronic)ISBN: 978-1-7281-1296-1 (print)OAI: oai:DiVA.org:liu-154875DiVA, id: diva2:1293095
Conference
The 6th IEEE Global Conference on Signal and Information Processing (GlobalSIP)
Funder
ELLIIT - The Linköping‐Lund Initiative on IT and Mobile CommunicationsAvailable from: 2019-03-03 Created: 2019-03-03 Last updated: 2019-05-14

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Van Chien, Trinh

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Citation style
  • apa
  • harvard1
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  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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