On the interference cancellation by reduced channel zero forcing class of precodings in massive MIMO systems

Dmitry Mineev (), Evgeny Bobrov () and Viktor Kuznetsov ()
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Dmitry Mineev: Huawei Technologies
Evgeny Bobrov: Huawei Technologies
Viktor Kuznetsov: Huawei Technologies

Telecommunication Systems: Modelling, Analysis, Design and Management, 2023, vol. 83, issue 1, No 3, 29-40

Abstract: Abstract In this research, we study the interference cancellation capabilities of receivers and transmitters in multiple-input-multiple-output (MIMO) systems using theoretical calculations and numerical simulations in Quadriga. We study so-called Reduced Channel Zero-Forcing (RCZF) class of precoding as well as Minimum MSE Interference Rejection Combiner (MMSE-IRC) and QR Maximum Likelihood Detection (QR-MLD) receivers. The precodings from the RCZF class are widely used in practice and include for example Zero-Forcing (ZF) and Eigen Zero-Forcing (EZF) precodings. Our theoretical and experimental results confirm that MMSE-IRC and QR-MLD receivers in combination with the RCZF precoding provide complete interference suppression asymptotically. The major findings and the calculation results far as the RCZF class of precoding as well as the MMSE-IRC and QR-MLD receivers’ performance concerned, which is a subject of the paper.

Keywords: Massive MIMO; Wireless systems; Precoding; Interference; QR-MLD; MMSE-IRC; Generalized LSE (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s11235-023-01005-5

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