Nonlinear Effects in NOMA Signals: Performance Evaluation and Receiver Design

Pre-processing techniques employed at the transmitter side of multiple-input, multiple-output (MIMO) systems, such as the ones used by MIMO singular value decomposition (SVD) (MIMO-SVD) techniques, can lead to signals with large envelope fluctuations and high peak-to-average power ratio (PAPR). For...

Full description

Bibliographic Details
Main Author: Guerreiro, João (author)
Other Authors: Dinis, Rui (author), Montezuma, Paulo (author), Silva, Mário Marques da (author)
Format: article
Language:eng
Published: 2022
Subjects:
Online Access:http://hdl.handle.net/11144/5471
Country:Portugal
Oai:oai:repositorio.ual.pt:11144/5471
Description
Summary:Pre-processing techniques employed at the transmitter side of multiple-input, multiple-output (MIMO) systems, such as the ones used by MIMO singular value decomposition (SVD) (MIMO-SVD) techniques, can lead to signals with large envelope fluctuations and high peak-to-average power ratio (PAPR). For this reason, we can have amplification difficulties and increased sensitivity to nonlinear distortion effects. In this work, we consider MIMO-SVD schemes with strong nonlinear distortion effects. It is shown that contrarily to what one could expect, the asymptotic optimum performance of the MIMO system with strong nonlinear distortion effects can be much better than the optimum performance with an ideal, linear transmitter.