Results 21 to 30 of about 1,347 (153)
Practical Demonstration of 5G NR Transport Over-Fiber System with Convolutional Neural Network
Telecom, 2022 This study describes an experimental realization using digital predistortion (DPD) for a fifth generation (5G) multiband new radio (NR) optical front haul (OFH) based Radio over Fiber (RoF) link.
Muhammad Usman Hadi
doaj +1 more source
IEEE Access, 2021 This paper proposes a new digital predistortion (DPD) scheme for linearizing millimeter-wave hybrid beamforming transmitters using observation receivers with low-bit resolution analog-to-digital converters (ADCs).
Ahmed Ben Ayed +3 more
doaj +1 more source
IEEE Access, 2023 Recently, new emerging techniques of neuromorphic hardware render spiking neuron networks (SNN) promising as an energy-efficient solution for artificial intelligence (AI).
Siqi Wang +2 more
doaj +1 more source
Transmitter IQ Imbalance Mitigation and PA Linearization in Software Defined Radios [PDF]
Radioengineering, 2022 Radio frequency (RF) power amplifiers (PA) are efficiently linearized by adaptive digital predistortion (DPD). However, performance of DPD is severely degraded in presence of transmitter’s frequency-selective in-phase/quadrature (I/Q) imbalance.
B. Jovanovic, S. Milenkovic
doaj
Neural Network DPD for Aggrandizing SM-VCSEL-SSMF-Based Radio over Fiber Link Performance
Photonics, 2021 This paper demonstrates an unprecedented novel neural network (NN)-based digital predistortion (DPD) solution to overcome the signal impairments and nonlinearities in Analog Optical fronthauls using radio over fiber (RoF) systems.
Muhammad Usman Hadi +4 more
doaj +1 more source
On Segmented Predistortion for Linearization of RF Power Amplifiers [PDF]
Radioengineering, 2020 This paper presents a general survey of digital predistortion (DPD) techniques with segmentation. A comparison of global DPD with two segmented approaches namely Vector-Switched DPD and Decomposed Vector Rotation DPD is presented with the support of ...
G. Baudoin
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Digital Predistortion of Wideband Signals with Reduced Complexity Based on Feedback Wiener System
Journal of Telecommunications and Information Technology, 2021 Digital predistortion (DPD) using baseband signals is commonly used for power amplifier linearization. This paper is devoted to this subject and aims to reduce DPD complexity.
Tayeb H. C. Bouazza +2 more
doaj +1 more source
IEEE Access, 2019 The method of function approximation to improve index accuracy of the lookup table (LUT) of digital predistortion (DPD) is proposed in this paper. The algorithm utilizes Taylor Series method for LUT approximation.
Jijun Ren
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Effect of the Base-band Measurement Setup Errors on DPD Performance and Elimination Procedure
Advanced Electromagnetics, 2017 In this study, the effect of base-band measurement setup errors on DPD performance was investigated and a calibration procedure is developed to eliminate the measurement errors. A base-band measurement setup is prepared at laboratory with instruments and
A. H. Yüzer, E. B. Şanlı
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Digital Predistortion Utilizing Over-the-Air Feedback for Phased Arrays
IEEE Access, 2021 In this paper, an efficient digital predistortion (DPD) architecture utilizing over-the-air (OTA) feedback is presented to linearize phased array transmitters.
Ying Liu +5 more
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