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Massive MIMO in Sub-6 GHz and mmWave: Physical, Practical, and Use-Case Differences
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-5954-434x
Katholieke Univ Leuven, Belgium; Lund Univ, Sweden.
Univ Cassino and Lazio Merid, Italy; CNIT, Italy.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
2019 (English)In: IEEE wireless communications, ISSN 1536-1284, E-ISSN 1558-0687, Vol. 26, no 2, p. 100-108Article in journal (Refereed) Published
Abstract [en]

The use of base stations (BSs) and access points (APs) with a large number of antennas, called Massive MIMO (multiple-input multiple-output), is a key technology for increasing the capacity of 5G networks and beyond. While originally conceived for conventional sub-6 GHz frequencies, Massive MIMO (mMIMO) is also ideal for frequency bands in the range 30-300 GHz, known as millimeter wave (mmWave). Despite conceptual similarities, the way in which mMIMO can be exploited in these bands is radically different, due to their specific propagation behaviors and hardware characteristics. This article reviews these differences and their implications, while dispelling common misunderstandings. Building on this foundation, we suggest appropriate signal processing schemes and use cases to efficiently exploit mMIMO in both frequency bands.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2019. Vol. 26, no 2, p. 100-108
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:liu:diva-158378DOI: 10.1109/MWC.2018.1800140ISI: 000466553300016Scopus ID: 2-s2.0-85060948627OAI: oai:DiVA.org:liu-158378DiVA, id: diva2:1333620
Available from: 2019-07-01 Created: 2019-07-01 Last updated: 2019-08-09Bibliographically approved

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Björnson, Emil

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