liu.seSearch for publications in DiVA
Change search
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
Random Pilot and Data Access in Massive MIMO for Machine-Type Communications
Aalborg University, Denmark.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Aalborg University, Denmark.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
Show others and affiliations
2017 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 16, no 12, p. 7703-7717Article in journal (Refereed) Published
Abstract [en]

A massive MIMO system, represented by a base station with hundreds of antennas, is capable of spatially multiplexing many devices and thus naturally suited to serve dense crowds of wireless devices in emerging applications, such as machine-type communications. Crowd scenarios pose new challenges in the pilot-based acquisition of channel state information and call for pilot access protocols that match the intermittent pattern of device activity. A joint pilot assignment and data transmission protocol based on random access is proposed in this paper for the uplink of a massive MIMO system. The protocol relies on the averaging across multiple transmission slots of the pilot collision events that result from the random access process. We derive new uplink sum rate expressions that take pilot collisions, intermittent device activity, and interference into account. Simplified bounds are obtained and used to optimize the device activation probability and pilot length. A performance analysis indicates how performance scales as a function of the number of antennas and the transmission slot duration.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017. Vol. 16, no 12, p. 7703-7717
Keyword [en]
Machine-type communications; massive MIMO; pilot collisions; pilot contamination; random access
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-144150DOI: 10.1109/TWC.2017.2748106ISI: 000418184400002Scopus ID: 2-s2.0-85030757777OAI: oai:DiVA.org:liu-144150DiVA: diva2:1172308
Conference
41st IEEE International Conference on Acoustics, Speech, and Signal Processing
Note

Funding Agencies|Danish Council for Independent Research [DFF133500273]; Danish National Advanced Technology Foundation via the VIRTUOSO Project; Horizon Project FANTASTIC-5G [ICT-671660]; EU FP7 Project MAMMOET [ICT-619086]; ELLIIT; CENIIT

Available from: 2018-01-09 Created: 2018-01-09 Last updated: 2018-01-17Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Larsson, Erik G.

Search in DiVA

By author/editor
Björnson, EmilLarsson, Erik G.
By organisation
Communication SystemsFaculty of Science & Engineering
In the same journal
IEEE Transactions on Wireless Communications
Telecommunications

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 12 hits
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