Beyond the Moore-Penrose inverse: Strategies for the estimation of digital predistortion linearization parameters

PL Gilabert, RN Braithwaite… - IEEE Microwave …, 2020 - ieeexplore.ieee.org
Digital predistortion (DPD) is the linearization technique most often used to cope with the
inherent tradeoff between linearity and efficiency in power amplifiers (PAs). Adaptation is …

Complexity-reduced model adaptation for digital predistortion of RF power amplifiers with pretraining-based feature extraction

Y Li, X Wang, A Zhu - IEEE Transactions on Microwave Theory …, 2020 - ieeexplore.ieee.org
In this article, we present a new method to reduce the model adaptation complexity for digital
predistortion (DPD) of radio frequency (RF) power amplifiers (PAs) under varying operating …

Survey: Characterization and mitigation of spatial/spectral interferers and transceiver nonlinearities for 5G MIMO systems

N Peccarelli, B James, R Irazoqui… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
With an incredible increase in the number of wireless devices and an ever-growing demand
for high data rates, 5G needs to provide a solution to satisfy the demand for the next decade …

A Bayesian approach for nonlinear equalization and signal detection in millimeter-wave communications

B Li, C Zhao, M Sun, H Zhang, Z Zhou… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
For the emerging 5G millimeter-wave communications, the nonlinearity is inevitable due to
RF power amplifiers of the enormous bandwidth operating in extremely high frequency …

Direct error-searching SPSA-based model extraction for digital predistortion of RF power amplifiers

N Kelly, A Zhu - IEEE Transactions on Microwave Theory and …, 2017 - ieeexplore.ieee.org
This paper presents a low-complexity architecture to extract model coefficients for digital
predistortion of radio frequency power amplifiers. The proposed approach directly updates …

Least-squares phase predistortion of a+ 30 dBm class-D outphasing RF PA in 65 nm CMOS

Y Jung, J Fritzin, M Enqvist… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
This paper presents a model-based phase-only predistortion method suitable for outphasing
radio frequency (RF) power amplifiers (PA). The predistortion method is based on a model of …

[图书][B] Inverse system identification with applications in predistortion

Y Jung - 2018 - books.google.com
Models are commonly used to simulate events and processes, and can be constructed from
measured data using system identification. The common way is to model the system from …

Pre-distortion method, associated apparatus and non-transitory machine readable medium

YS Chang - US Patent 9,450,544, 2016 - Google Patents
A pre-distortion method includes: receiving an input data; and obtaining a pre-distortion
output by inputting the input data into a pre-distortion function, wherein the pre-distortion …

Digital pre-distortion architecture for RF power amplifier based on affine projection algorithm

YJ Seong, CS Cho, JW Lee - Electronics letters, 2012 - IET
The design is reported of a digital pre-distortion (DPD) architecture based on the affine
projection algorithm (AP) for RF power amplifiers operating in 900 MHz band. The linearity …

Adaptive digital pre-distortions based on affine projection algorithm for WCDMA power amplifier applications

SH Chun, YH Kim, KJ Choi, JY Kim… - 2010 IEEE MTT-S …, 2010 - ieeexplore.ieee.org
In this paper, we propose an adaptive digital pre-distortion (DPD) linearization based on an
affine projection (AP) algorithm for WCDMA power amplifier applications. The performance …