Results 41 to 50 of about 164 (124)
Electronics Letters, Volume 57, Issue 7, Page 300-302, March 2021., 2021 Abstract This letter presents a non‐linear dynamic behaviour model for characterising the broadband power amplifiers (PAs) by using deep convolution generative adversarial networks (DCGAN). The DCGAN structure is based on the convolution neural network model and combines the generative adversarial networks to improve its linearisation ability of the ...
Rina Su, Taijun Liu, Yan Ye, Gaoming Xu
wiley +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
doaj
A Schottky diode and FET‐paralleled analogue predistorter for 5G small‐cell base stations
Electronics Letters, Volume 57, Issue 6, Page 235-237, March 2021., 2021 Abstract This letter presents an analogue predistorter (APD) named Schottky diode (SD) and field effect transistor (FET)‐paralleled APD (SDFP‐APD) for the fifth‐generation (5G) mobile system, which is composed of an FET paralleled with two SDs. The simulation results show that the SDFP‐APD has the best compression compensation for the radio frequency ...
Li Huang +3 more
wiley +1 more source
A Novel PAPR Reduction Scheme for OFDM Systems Based on Neural Networks
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 Orthogonal frequency division multiplexing (OFDM) is extensively applied in the downlink of narrowband Internet of Things (NB‐IoT). However, the high peak‐to‐average power ratio (PAPR) of OFDM systems leads to a decrease in transmitter efficiency. Therefore, the researchers proposed the artificial neural network (ANN) based PAPR reduction schemes ...
Feng Zou +4 more
wiley +1 more source
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
doaj +1 more source
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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Applied Sciences, 2021 This paper presents an experimental realization of multiband 5G new radio (NR) optical front haul (OFH) based radio over fiber (RoF) system using digital predistortion (DPD).
Muhammad Usman Hadi +4 more
doaj +1 more source
Practically Feasible Closed-Loop Digital Predistortion for VCSEL-MMF-Based Radio-over-Fiber Links [PDF]
Radioengineering, 2020 The article demonstrates a novel Digital Predistortion (DPD) architecture for Mobile Front Haul links for the advanced Long-Term Evolution (LTE) and upcoming 5G networks.
M. U. Hadi +5 more
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