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Title: Massive MIMO with Nonlinear Amplification: Signal Characterization and Performance Evaluation
Authors: Guerreiro, João
Dinis, Rui
Carvalho, Paulo Montezuma
Keywords: MIMO system
Nonlinear Amplification
Issue Date: 1-Dec-2016
Publisher: IEEE
Abstract: In this paper, we consider a T \times R massive MIMO system with up to R simultaneous links (T>> R>>1) and nonlinear amplifiers in each transmitter branch. The impact of a nonlinear amplification is analytically studied and accurate expressions for the spectral characterization of the transmitted signals, as well as the bit-error-rate (BER) are derived. The accuracy of our analysis is validated by simulations. It is also shown that the nonlinear distortion levels for detection purposes decrease with the ratio T/R, which means that the impact of the nonlinear distortion effects on the system's performance can be alleviated provided that T>>R. Therefore, the combination of massive MIMO systems with nonlinear, highly efficient power amplifiers can be an interesting option for low-cost, broadband wireless systems.
Peer reviewed: yes
Appears in Collections:AUTONOMA TECHLAB - Comunicações em conferências

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