Towards a generic model for MU-MIMO analysis including mutual coupling and multipath effects

N. Amani; Henk Wymeersch; U. Johannsen; A.B. Smolders; M.V. Ivashina; R. Maaskant

Towards a generic model for MU-MIMO analysis including mutual coupling and multipath effects

N. Amani, Henk Wymeersch, U. Johannsen, A.B. Smolders, M.V. Ivashina, R. Maaskant

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

A network model which accounts for antenna mutual coupling and multipath effects in a wireless channel is proposed as a tool to qualitatively evaluate the performance of a multi-user multiple-input multiple-output (MU-MIMO) system. The system performance is assessed when a zero-forcing (ZF) beamformed conventional uniform linear array (ULA) and a sparse array are employed as one sector of a base station antenna (BSA) in a single-cell network. It is shown that highly correlated user equipments (UEs) in a line-of-sight (LOS) scenario can be decorrelated to some extents, by a scattering environment in a non-line-of-sight (NLOS) scenario. This occurs due to increase of the spatial variation by a multipath effect. Furthermore, in both environments a sparse array realized by an increased interelement spacing is also capable for correlation reduction among users due to the narrower beams.

Original language	English
Title of host publication	13th European Conference on Antennas and Propagation, EuCAP 2019
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Number of pages	4
ISBN (Electronic)	978-88-907018-8-7
Publication status	Published - 1 Mar 2019
Event	13th European Conference on Antennas and Propagation, EuCAP 2019 - Krakow, Poland Duration: 31 Mar 2019 → 5 Apr 2019 https://www.eucap2019.org/

Conference

Conference	13th European Conference on Antennas and Propagation, EuCAP 2019
Country	Poland
City	Krakow
Period	31/03/19 → 5/04/19
Internet address	https://www.eucap2019.org/

Keywords

Base station antenna
multi-user multiple-input multiple-output (MU-MIMO)
network theory
sparse array

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title = "Towards a generic model for MU-MIMO analysis including mutual coupling and multipath effects",

abstract = "A network model which accounts for antenna mutual coupling and multipath effects in a wireless channel is proposed as a tool to qualitatively evaluate the performance of a multi-user multiple-input multiple-output (MU-MIMO) system. The system performance is assessed when a zero-forcing (ZF) beamformed conventional uniform linear array (ULA) and a sparse array are employed as one sector of a base station antenna (BSA) in a single-cell network. It is shown that highly correlated user equipments (UEs) in a line-of-sight (LOS) scenario can be decorrelated to some extents, by a scattering environment in a non-line-of-sight (NLOS) scenario. This occurs due to increase of the spatial variation by a multipath effect. Furthermore, in both environments a sparse array realized by an increased interelement spacing is also capable for correlation reduction among users due to the narrower beams.",

keywords = "Base station antenna, multi-user multiple-input multiple-output (MU-MIMO), network theory, sparse array",

author = "N. Amani and Henk Wymeersch and U. Johannsen and A.B. Smolders and M.V. Ivashina and R. Maaskant",

year = "2019",

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booktitle = "13th European Conference on Antennas and Propagation, EuCAP 2019",

publisher = "Institute of Electrical and Electronics Engineers",

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note = "13th European Conference on Antennas and Propagation, EuCAP 2019 ; Conference date: 31-03-2019 Through 05-04-2019",

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Amani, N , Wymeersch, H , Johannsen, U , Smolders, AB, Ivashina, MV & Maaskant, R 2019, Towards a generic model for MU-MIMO analysis including mutual coupling and multipath effects. in 13th European Conference on Antennas and Propagation, EuCAP 2019., 8739369, Institute of Electrical and Electronics Engineers, Piscataway, 13th European Conference on Antennas and Propagation, EuCAP 2019, Krakow, Poland, 31/03/19.

Towards a generic model for MU-MIMO analysis including mutual coupling and multipath effects. / Amani, N.; Wymeersch, Henk ; Johannsen, U.; Smolders, A.B.; Ivashina, M.V.; Maaskant, R.

13th European Conference on Antennas and Propagation, EuCAP 2019. Piscataway : Institute of Electrical and Electronics Engineers, 2019. 8739369.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Johannsen, U.

AU - Smolders, A.B.

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AU - Maaskant, R.

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N2 - A network model which accounts for antenna mutual coupling and multipath effects in a wireless channel is proposed as a tool to qualitatively evaluate the performance of a multi-user multiple-input multiple-output (MU-MIMO) system. The system performance is assessed when a zero-forcing (ZF) beamformed conventional uniform linear array (ULA) and a sparse array are employed as one sector of a base station antenna (BSA) in a single-cell network. It is shown that highly correlated user equipments (UEs) in a line-of-sight (LOS) scenario can be decorrelated to some extents, by a scattering environment in a non-line-of-sight (NLOS) scenario. This occurs due to increase of the spatial variation by a multipath effect. Furthermore, in both environments a sparse array realized by an increased interelement spacing is also capable for correlation reduction among users due to the narrower beams.

AB - A network model which accounts for antenna mutual coupling and multipath effects in a wireless channel is proposed as a tool to qualitatively evaluate the performance of a multi-user multiple-input multiple-output (MU-MIMO) system. The system performance is assessed when a zero-forcing (ZF) beamformed conventional uniform linear array (ULA) and a sparse array are employed as one sector of a base station antenna (BSA) in a single-cell network. It is shown that highly correlated user equipments (UEs) in a line-of-sight (LOS) scenario can be decorrelated to some extents, by a scattering environment in a non-line-of-sight (NLOS) scenario. This occurs due to increase of the spatial variation by a multipath effect. Furthermore, in both environments a sparse array realized by an increased interelement spacing is also capable for correlation reduction among users due to the narrower beams.

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KW - multi-user multiple-input multiple-output (MU-MIMO)

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