Towards a Generic Model for MU-MIMO Analysis Including Mutual Coupling and Multipath Effects
Paper in proceedings, 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

Gratings

Wireless communication

sparse array

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

Mutual coupling

Interference

Signal to noise ratio

network theory

Author

Navid Amani

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Henk Wymeersch

Chalmers, Electrical Engineering, Communication and Antenna Systems, Communication Systems

U. Johannsen

A. B. Smolders

Marianna Ivashina

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Rob Maaskant

Chalmers, Electrical Engineering, Communication and Antenna Systems

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

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

European Commission (Horizon 2020), 2016-09-01 -- 2020-08-31.

Subject Categories

Telecommunications

Communication Systems

Signal Processing

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Latest update

9/3/2019 1