Results 51 to 60 of about 1,347 (153)
An Ultra-Wideband Digitally Programmable Power Amplifier with Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards [PDF]
, 2016 The design and measurements of a fabricated novel digitally programmable wideband power amplifier (PA) are presented. The PA is made suitable for use in all communication standards, including GSM, 3G, LTE and Femto-cells, offering a bandwidth of several ...
Albasha, Lutfi +7 more
core +3 more sources
IEEE Access, 2022 This paper proposes a novel predistorter architecture suitable for hybrid baseband/RF implementation. The distortion function is split into a memory polynomial and an AM/AM only look-up table (LUT).
Anfal Alsayed Ali +2 more
doaj +1 more source
3-D distributed memory polynomial behavioral model for concurrent dual-band envelope tracking power amplifier linearization [PDF]
, 2015 © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Gilabert Pinal, Pere Lluís +1 more
core +2 more sources
Thresholds Optimization of Decomposed Vector Rotation Model for Digital Predistortion of RF Power Amplifier [PDF]
Radioengineering, 2021 In this paper, we propose an efficient approach for optimizing the decomposed vector rotation (DVR) model for digital predistortion (DPD). The DVR model’s basis functions are constructed piecewise by dividing the input space into segments bounded by ...
C. Kantana, G. Baudoin, O. Venard
doaj
IEEE Photonics Journal, 2019 Optical communication systems often include nonlinear components, such as Mach–Zehnder modulators (MZMs). The components’ nonlinearity may have a deleterious effect on the system performance, especially when the memory effect is included ...
Hananel Faig +3 more
doaj +1 more source
IEEE Access, 2020 In this article, a novel digital predistortion (DPD) model based on complex-valued pipelined Chebyshev functional link recurrent neural network (CPCFLRNN) for joint compensation of wideband transmitter distortions and impairments is proposed.
Mingyu Li +5 more
doaj +1 more source
Digital predistortion of RF amplifiers using baseband injection for mobile broadband communications [PDF]
, 2014 Radio frequency (RF) power amplifiers (PAs) represent the most challenging design parts of wireless transmitters. In order to be more energy efficient, PAs should operate in nonlinear region where they produce distortion that significantly degrades the ...
Cabarkapa, M., Cabarkapa, M.
core
Bandwidth, Power and Carrier Configuration Resilient Neural Networks Digital Predistorter
IEEE Access, 2023 This paper proposes a neural networks predistorter based on the bidirectional long-short-term memory (BiLSTM) structure. The proposed predistorter was trained while ensuring that it captures the full intrinsic behavior of the device under test including ...
Asma Ali, Oualid Hammi
doaj +1 more source
Concurrent Multi-Beam Digital Predistortion Using FFT Beamforming and Virtual Arrays
SensorsA digital predistortion (DPD) scheme for concurrent multi-beam transmission in fully digital multiple-input, multiple-output (MIMO) systems, using Fast Fourier Transform (FFT) beamforming and so-called virtual-array processing, is proposed.
Björn Langborn +3 more
doaj +1 more source
The Journal of Engineering, 2019 This paper proposes an improved estimation approach for modelling RF power amplifiers (PAs) using the Saleh behavioural model. The proposed approach is appropriate for solid-state PA technologies.
Haider Al-kanan, Xianzhen Yang, Fu Li
doaj +1 more source