Adaptive digital predistortion of wireless power amplifiers/transmitters using dynamic real-valued focused time-delay line neural networks

M Rawat, K Rawat… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
Neural networks (NNs) are becoming an increasingly attractive solution for power amplifier
(PA) behavioral modeling, due to their excellent approximation capability. Recently, different …

Power adaptive digital predistortion for wideband RF power amplifiers with dynamic power transmission

Y Guo, C Yu, A Zhu - IEEE Transactions on Microwave Theory …, 2015 - ieeexplore.ieee.org
To reduce power consumption of wireless transmitters, the transmission power level of RF
power amplifiers (PAs) may dynamically change according to real-time data traffic. This …

Metrics and methods for benchmarking of RF transmitter behavioral models with application to the development of a hybrid memory polynomial model

O Hammi, M Younes… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
This paper presents a study of performance evaluation metrics for behavioral models of
power amplifiers and transmitters. A novel normalized absolute mean spectrum error …

FPGA implementation of adaptive digital predistorter with fast convergence rate and low complexity for multi-channel transmitters

Y Ma, Y Yamao, Y Akaiwa, C Yu - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
This paper reports an adaptive digital predistorter (DPD) with fast convergence rate and low
complexity for multi-channel transmitters, which is fully implemented in a field programmable …

Deep learning-based M-ary spread spectrum communication system in shallow water acoustic channel

G Qiao, Y Liu, F Zhou, Y Zhao, S Mazhar, G Yang - Applied Acoustics, 2022 - Elsevier
A deep learning-based M-ary spread spectrum (SS) underwater acoustic (UWA)
communication system is proposed. The long short-term memory (LSTM) model is used as …

Power alignment of digital predistorters for power amplifiers linearity optimization

O Hammi, FM Ghannouchi - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
In this paper, a study of the power alignment issue in digital predistorters is presented. The
proper alignment is achieved by adjusting the normalization gain used to synthesize the …

A PSO based memory polynomial predistorter with embedded dimension estimation

AH Abdelhafiz, O Hammi, A Zerguine… - IEEE Transactions …, 2013 - ieeexplore.ieee.org
Power amplifiers are widely used in RF broadcasting applications. However, they tend to
exhibit nonlinear behavior that distorts the input signals both in the time and frequency …

Polynomials and LUTs in PA behavioral modeling: A fair theoretical comparison

FM Barradas, TR Cunha, PM Lavrador… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
Traditionally, power amplifier behavioral modeling and digital predistortion have been
based on polynomials or Volterra series. Recently, however, there has been a trend to …

Advanced multimode radio for wireless & mobile broadband communication

G Kardaras, C Lanzani - 2009 European wireless technology …, 2009 - ieeexplore.ieee.org
Distributed base station architectures represent the new trend that operators follow in order
to resolve cost, performance and efficiency challenges when deploying 4G networks. Main …

Dice coefficient matching-based sparsity adaptive matching pursuit algorithm for the digital predistortion model pruning

MD Zhu, M Li, Z Geng, Z Yu, W Jiang… - 2018 IEEE 18th …, 2018 - ieeexplore.ieee.org
In this paper, an efficient Dice coefficient matching-based sparsity adaptive matching pursuit
(DSAMP) algorithm is introduced to prune the redundant terms of power amplifier (PA) …