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Massive MIMO performance evaluation based on measured propagation data

Gao, Xiang LU ; Edfors, Ove LU ; Rusek, Fredrik LU and Tufvesson, Fredrik LU (2015) In IEEE Transactions on Wireless Communications 14(7). p.3899-3911
Abstract
Massive MIMO, also known as very-large MIMO or large-scale antenna systems, is a new technique that potentially can offer large network capacities in multi-user scenarios. With a massive MIMO system, we consider the case where a base station equipped with a large number of antenna elements simultaneously serves multiple single-antenna users in the same time-frequency resource. So far, investigations are mostly based on theoretical channels with independent and identically distributed (i.i.d.) complex Gaussian coefficients, i.e., i.i.d. Rayleigh channels. Here, we investigate how massive MIMO performs in channels measured in real propagation environments. Channel measurements were performed at 2.6 GHz using a virtual uniform linear array... (More)
Massive MIMO, also known as very-large MIMO or large-scale antenna systems, is a new technique that potentially can offer large network capacities in multi-user scenarios. With a massive MIMO system, we consider the case where a base station equipped with a large number of antenna elements simultaneously serves multiple single-antenna users in the same time-frequency resource. So far, investigations are mostly based on theoretical channels with independent and identically distributed (i.i.d.) complex Gaussian coefficients, i.e., i.i.d. Rayleigh channels. Here, we investigate how massive MIMO performs in channels measured in real propagation environments. Channel measurements were performed at 2.6 GHz using a virtual uniform linear array (ULA) which has a physically large aperture, and a practical uniform cylindrical array (UCA) which is more compact in size, both having 128 antenna ports. Based on measurement data, we illustrate channel behavior of massive MIMO in three representative propagation conditions, and evaluate the corresponding performance. The investigation shows that the measured channels, for both array types, allow us to achieve performance close to that in i.i.d. Rayleigh channels. It is concluded that in real propagation environments we have characteristics that can allow for efficient use of massive MIMO, i.e., the theoretical advantages of this new technology can also be harvested in real channels. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
singular value spread, angular power spectra, channel capacity, very-large MIMO, Massive MIMO, channel measurements, multi-user MIMO, 5G
in
IEEE Transactions on Wireless Communications
volume
14
issue
7
pages
3899 - 3911
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000357805200030
  • scopus:84937134074
ISSN
1536-1276
DOI
10.1109/TWC.2015.2414413
language
English
LU publication?
yes
id
237c181b-16ec-49bd-883a-9dbfcf401339 (old id 5218941)
date added to LUP
2015-03-31 10:59:27
date last changed
2017-11-12 03:34:53
@article{237c181b-16ec-49bd-883a-9dbfcf401339,
  abstract     = {Massive MIMO, also known as very-large MIMO or large-scale antenna systems, is a new technique that potentially can offer large network capacities in multi-user scenarios. With a massive MIMO system, we consider the case where a base station equipped with a large number of antenna elements simultaneously serves multiple single-antenna users in the same time-frequency resource. So far, investigations are mostly based on theoretical channels with independent and identically distributed (i.i.d.) complex Gaussian coefficients, i.e., i.i.d. Rayleigh channels. Here, we investigate how massive MIMO performs in channels measured in real propagation environments. Channel measurements were performed at 2.6 GHz using a virtual uniform linear array (ULA) which has a physically large aperture, and a practical uniform cylindrical array (UCA) which is more compact in size, both having 128 antenna ports. Based on measurement data, we illustrate channel behavior of massive MIMO in three representative propagation conditions, and evaluate the corresponding performance. The investigation shows that the measured channels, for both array types, allow us to achieve performance close to that in i.i.d. Rayleigh channels. It is concluded that in real propagation environments we have characteristics that can allow for efficient use of massive MIMO, i.e., the theoretical advantages of this new technology can also be harvested in real channels.},
  author       = {Gao, Xiang and Edfors, Ove and Rusek, Fredrik and Tufvesson, Fredrik},
  issn         = {1536-1276},
  keyword      = {singular value spread,angular power spectra,channel capacity,very-large MIMO,Massive MIMO,channel measurements,multi-user MIMO,5G},
  language     = {eng},
  number       = {7},
  pages        = {3899--3911},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Wireless Communications},
  title        = {Massive MIMO performance evaluation based on measured propagation data},
  url          = {http://dx.doi.org/10.1109/TWC.2015.2414413},
  volume       = {14},
  year         = {2015},
}