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Article

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Title

Clipping noise cancellation receiver for the downlink of massive MIMO OFDM system

Authors

[ 1 ] Instytut Radiokomunikacji, Wydział Informatyki i Telekomunikacji, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.3] Information and communication technology

Year of publication

2023

Published in

IEEE Transactions on Communications

Journal year: 2023 | Journal volume: vol. 71 | Journal number: no. 10

Article type

scientific article

Publication language

english

Keywords
EN
  • orthogonal frequency-division multiplexing (OFDM)
  • massive MIMO (mMIMO)
  • front-end nonlinearity
  • clipping noise cancellation (CNC)
Abstract

EN Massive multiple-input multiple-output (mMIMO) technology is considered a key enabler for the 5G and future wireless networks. In most wireless communication systems, mMIMO is employed together with orthogonal frequency-division multiplexing (OFDM) which exhibits a high peak-to-average-power ratio (PAPR). While passing the OFDM signal through one of the common RF front-ends of limited linearity, significant distortion of the transmitted signal can be expected. In mMIMO systems, this problem is still relevant as in some channels the distortion component is beamformed in the same directions as the desired signal. In this work, we propose a multi-antenna clipping noise cancellation (MCNC) algorithm for the downlink of the mMIMO OFDM system. Computer simulations show it can remove nonlinear distortion even under severe nonlinearity. Next, a simplified version of the algorithm is proposed. It was observed that for the direct visibility channels, its performance is only slightly degraded with respect to the MCNC algorithm.

Pages (from - to)

6061 - 6073

DOI

10.1109/TCOMM.2023.3293159

URL

https://ieeexplore.ieee.org/document/10175641

Ministry points / journal

140

Impact Factor

7,2

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