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Dynamic selection and update of digital predistorter coefficients for power amplifier linearization

Author
Pham, T.; López, D.; Montoro, G.; Gilabert, Pere L.
Type of activity
Presentation of work at congresses
Name of edition
2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications
Date of publication
2019
Presentation's date
2019-01-20
Book of congress proceedings
2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR)
First page
1
Last page
4
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
DOI
10.1109/PAWR.2019.8708732
Repository
http://hdl.handle.net/2117/134497 Open in new window
URL
https://ieeexplore.ieee.org/abstract/document/8708732 Open in new window
Abstract
In this paper, a new method for dynamically estimating and updating the coefficients of a digital predistortion (DPD) linearizer is presented. By means of the partial least squares (PLS) algorithm, the basis matrix used in the DPD estimation/adaptation is dynamically updated at every iteration to minimize the linearization error. Moreover, only the minimum necessary DPD coefficients being required to meet a target estimation error are computed. The proposed estimation technique is compared with ...
Citation
Pham, T. [et al.]. Dynamic selection and update of digital predistorter coefficients for power amplifier linearization. A: IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications. "2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR)". Institute of Electrical and Electronics Engineers (IEEE), p. 1-4.
Keywords
Digital predistorter, Digital predistortion, Estimation techniques, FPGA implementations, Least squares approximations, Least squares estimation, Linearization, Partial least square (PLS), Partial least squares regression, Power amplifier linearization, Power amplifiers, partial least squares regression, power amplifier linearization Iterative methods
Group of research
CSC - Components and Systems for Communications Research Group

Participants