Uniform Linear Arrays With Optimized Inter-Element Spacing for LOS Massive MIMO
Artikel i vetenskaplig tidskrift, 2021

In this letter, a uniform linear array (ULA) is proposed for line-of-sight massive multiple-input-multiple-output (MIMO). It is assumed that the number of antennas is fixed. For a given ULA with an arbitrary inter-element spacing, the probability that the correlation among the channel vectors of two users being above a threshold value is derived. The inter-element spacing of the proposed ULA is the one for which the aforementioned probability is minimized. To show the effectiveness of the proposed ULA, simulation results for two scenarios are given for a 64-antenna ULA that serves 6 single-antenna users. By using the proposed ULA instead of conventional half-wavelength ULA, 5th percentile sum-rate for zero-forcing precoder is improved by 9.90 bits/channel use in first scenario without dropping, and by 1.43 bits/channel use in second scenario with dropping 1 user.

Gratings

massive MIMO

zero-forcing

Apertures

Power control

uniform linear array

Correlation

Line-of-sight

MIMO communication

Antenna arrays

Författare

Amirashkan Farsaei

Technische Universiteit Eindhoven

Navid Amani

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Rob Maaskant

Chalmers, Elektroteknik, Kommunikations- och antennsystem

Ulf Gustavsson

Ericsson AB

Alex Alvarado

Technische Universiteit Eindhoven

Frans M. J. Willems

Technische Universiteit Eindhoven

IEEE Communications Letters

1089-7798 (ISSN)

Vol. 25 2 613-616

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

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

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/LCOMM.2020.3030681

Mer information

Senast uppdaterat

2021-03-17