Towards Very Large Aperture Massive MIMO

a measurement based study

Àlex Oliveras Martínez, Elisabeth De Carvalho, Jesper Ødum Nielsen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

38 Citations (Scopus)
341 Downloads (Pure)

Abstract

Massive MIMO is a new technique for wireless communications that claims to offer very high system throughput and energy efficiency in multi-user scenarios. The cost is to add a very large number of antennas at the base station. Theoretical research has probed these benefits, but very few measurements have showed the potential of Massive MIMO in practice. We investigate the properties of measured Massive MIMO channels in a large indoor venue. We describe a measurement campaign using 3 arrays having different shape and aperture, with 64 antennas and 8 users with 2 antennas each. We focus on the impact of the array aperture which is the main limiting factor in the degrees of freedom available in the multiple antenna channel. We find that performance is improved as the aperture increases, with an impact mostly visible in crowded scenarios where the users are closely spaced. We also test MIMO capability within a same user device with user proximity effect. We see a good channel resolvability with confirmation of the strong effect of the user hand grip. At last, we highlight that propagation conditions where line-of-sight is dominant can be favourable.
Original languageEnglish
Title of host publicationIEEE GLOBECOM 2014 proceedings
PublisherIEEE
Publication date2014
Pages281-286
DOIs
Publication statusPublished - 2014
EventGlobecom 2014 - Austin, United States
Duration: 8 Dec 201412 Dec 2014

Conference

ConferenceGlobecom 2014
CountryUnited States
CityAustin
Period08/12/201412/12/2014
SeriesGLOBECOM - conference record / IEEE Global Telecommunications Conference
ISSN0895-1195

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MIMO systems
Antennas
Base stations
Energy efficiency
Throughput
Communication
Costs

Cite this

Oliveras Martínez, À., De Carvalho, E., & Nielsen, J. Ø. (2014). Towards Very Large Aperture Massive MIMO: a measurement based study. In IEEE GLOBECOM 2014 proceedings (pp. 281-286). IEEE. GLOBECOM - conference record / IEEE Global Telecommunications Conference https://doi.org/10.1109/GLOCOMW.2014.7063445
Oliveras Martínez, Àlex ; De Carvalho, Elisabeth ; Nielsen, Jesper Ødum. / Towards Very Large Aperture Massive MIMO : a measurement based study. IEEE GLOBECOM 2014 proceedings. IEEE, 2014. pp. 281-286 (GLOBECOM - conference record / IEEE Global Telecommunications Conference).
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Oliveras Martínez, À, De Carvalho, E & Nielsen, JØ 2014, Towards Very Large Aperture Massive MIMO: a measurement based study. in IEEE GLOBECOM 2014 proceedings. IEEE, GLOBECOM - conference record / IEEE Global Telecommunications Conference, pp. 281-286, Globecom 2014, Austin, United States, 08/12/2014. https://doi.org/10.1109/GLOCOMW.2014.7063445

Towards Very Large Aperture Massive MIMO : a measurement based study. / Oliveras Martínez, Àlex; De Carvalho, Elisabeth; Nielsen, Jesper Ødum.

IEEE GLOBECOM 2014 proceedings. IEEE, 2014. p. 281-286 (GLOBECOM - conference record / IEEE Global Telecommunications Conference).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Oliveras Martínez À, De Carvalho E, Nielsen JØ. Towards Very Large Aperture Massive MIMO: a measurement based study. In IEEE GLOBECOM 2014 proceedings. IEEE. 2014. p. 281-286. (GLOBECOM - conference record / IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOMW.2014.7063445