Artículo
An Upgraded Dual-Band Digital Predistorter Model for Power Amplifiers Linearization
Autor/es | Pérez Hernández, Abraham
Becerra González, Juan Antonio Madero Ayora, María José Crespo Cadenas, Carlos |
Departamento | Universidad de Sevilla. Departamento de Teoría de la Señal y Comunicaciones |
Fecha de publicación | 2021-01 |
Fecha de depósito | 2022-02-24 |
Publicado en |
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Resumen | Digital predistortion (DPD) based on Volterra models is commonly employed to counteract the nonlinear distortion of power amplifiers. However, when concurrent dual-band signals are transmitted, 2-D DPD models are required. ... Digital predistortion (DPD) based on Volterra models is commonly employed to counteract the nonlinear distortion of power amplifiers. However, when concurrent dual-band signals are transmitted, 2-D DPD models are required. In this work, upgrading of a standard dual-band model is proposed and justified using multinomial theorem. The linearization performance of the current proposal has been compared to the unextended model. Fifth generation (5G) New Radio signals have been generated to compose a dual-band signal, which later was employed as input signal at Chalmers University of Technology's RF WebLab. Using coefficient selection techniques, the most relevant regressors are shown, and the importance of the new extension is proven. Linearization results highlight the benefits of this proposal. |
Identificador del proyecto | TEC2017-82807-P |
Cita | Pérez-Hernández, A., Becerra-González, J.A., Madero-Ayora, M.J. y Crespo-Cadenas, C. (2021). An Upgraded Dual-Band Digital Predistorter Model for Power Amplifiers Linearization. IEEE Microwave and Wireless Components Letters, 31 (1), 33-36. |
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