Towards a Generic Model for MU-MIMO Analysis Including Mutual Coupling and Multipath Effects
Paper i proceeding, 2019

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.

Antenna arrays

Base station antenna


Wireless communication

sparse array

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

Mutual coupling


Signal to noise ratio

network theory


Navid Amani

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

U. Johannsen

A. B. Smolders

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Rob Maaskant

Chalmers, Elektroteknik, Kommunikations- och antennsystem

13th European Conference on Antennas and Propagation (EuCAP)
Krakow, Poland,

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

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





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