Array Configuration Effect on the Spatial Correlation of MU-MIMO Channels in NLoS Environments
Paper i proceeding, 2020

In this paper, three different base-station antenna (BSA) configurations are compared in terms of inter-user spatial correlation in a two dimensional (2D) non-line-of-sight (NLoS) environment. The three configurations are: (i) a regular uniform linear array (ULA); (ii) a periodic sparse array; and (iii) an aperiodic sparse array. Electromagnetic modeling of the NLoS channel is proposed where scatterers are considered as resonant dipoles confined in clusters of scatterers (CoSs). While the probability of facing highly correlated user-equipments (UEs) in a multi-user multiple-input multiple-output (MU-MIMO) system is decreasing as the richness of mutipath increases, the sparsity (increased inter-element spacing) is seen to be capable of reducing this probability as well. This is due to the larger spatial variations experienced by the sparse array. Moreover, the results show that further improvement can be achieved by deploying an aperiodic distribution of antenna elements into the sparse antenna aperture.

Multi-user multiple-input multiple-output (MU- MIMO)

spatial correlation

sparse array

non-line-of-sight (NLoS)

Författare

Navid Amani

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

A. Farsaei

Technische Universiteit Eindhoven

Ulf Gustavsson

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Thomas Eriksson

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

F. M.J. Willems

Technische Universiteit Eindhoven

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Rob Maaskant

Chalmers, Elektroteknik, Kommunikations- och antennsystem

2020 14th European Conference on Antennas and Propagation (EuCAP)

2164-3342 (ISSN)

14th European Conference on Antennas and Propagation
Copenhagen, Denmark,

Silicon-based Ka-band massive MIMO antenna systems for new telecommunication services (SILIKA)

Europeiska kommissionen (Horisont 2020), 2016-09-01 -- 2020-08-31.

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

Drivkrafter

Innovation och entreprenörskap

DOI

10.23919/EuCAP48036.2020.9135446

Mer information

Skapat

2020-07-21