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DETECTION OF PILOT-HOPPING SEQUENCES FOR GRANT-FREE RANDOM ACCESS IN MASSIVE MIMO SYSTEMS
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
2019 (English)In: 2019 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), IEEE , 2019, p. 8380-8384Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we study an active user detection problem for massive machine type communications (mMTC). The users transmit pilot-hopping sequences and detection of active users is performed based on the received energy. We utilize the channel hardening and favorable propagation properties of massive multiple- input multipleoutput (MIMO) to simplify the user detection. We propose and compare a number of different user detection methods and find that using non- negative least squares (NNLS) is well suited for the task at hand as it achieves good results as well as having the benefit of not having to specify further parameters.

Place, publisher, year, edition, pages
IEEE , 2019. p. 8380-8384
Series
International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
Keywords [en]
massive MIMO; machine type communication; compressed sensing
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:liu:diva-160640ISI: 000482554008124ISBN: 978-1-4799-8131-1 (electronic)OAI: oai:DiVA.org:liu-160640DiVA, id: diva2:1360161
Conference
44th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Note

Funding Agencies|ELLIIT; Swedish Research Council (VR)Swedish Research Council

Available from: 2019-10-11 Created: 2019-10-11 Last updated: 2019-10-11

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Becirovic, EmaBjörnson, EmilLarsson, Erik G
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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