Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends
The power amplifier (PA) is the key component of the transmit chain in a mobile telecommunication system. It allows the coverage of a wide service area but it’s non-linear effects need to be compensated in order to obtain high linearity and efficiency without introducing interference on the adjacent...
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| Формат: | Online |
| Язык: | английский |
| Опубликовано: |
FAU University Press
2025
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| Предметы: | |
| Online-ссылка: | ONIX_20251215T160010_9783961470815_19 |
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| _version_ | 1869524352086573056 |
|---|---|
| author | Donati, Giovanni |
| author_browse | Donati, Giovanni |
| author_facet | Donati, Giovanni |
| author_sort | Donati, Giovanni |
| collection | Directory of Open Access Books |
| description | The power amplifier (PA) is the key component of the transmit chain in a mobile telecommunication system. It allows the coverage of a wide service area but it’s non-linear effects need to be compensated in order to obtain high linearity and efficiency without introducing interference on the adjacent channels. Digital Pre-Distortion (DPD) is the commonly used solution to overcome these problems. The The LTE system makes use of OFDM modulation used in modern systems, provides signals with wide bandwidth, but low average power, thus common PA designs achieve low average efficiency. Dual-input Doherty power amplifiers with digital steering introduce new degrees of freedom in terms of linearization and reconfiguration. This work analyzes the tradeoffs between linearity, efficiency and linearization bandwidth, when digitally driving the DPA inputs separately. The knowledge of the physics of the devices allows to design a workflow to linearize the dual-input DPA obtaining high efficiency and reconfigurability. In this work an application of a bio inspired optimization algorithm show how to calibrate the DPD directly at the base-station. |
| format | Online |
| id | doab-20.500.12854ir-170265 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | FAU University Press |
| publisherStr | FAU University Press |
| record_format | ojs |
| spelling | doab-20.500.12854ir-1702652025-12-16T05:42:21Z Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends Donati, Giovanni Vorverzerrung Power Amplifier Linearization Partikel-Schwarm-Optimierung Basisstation PA-Anlage OFDM Leistungsverstärker Algorithmus Digital Signal Processing thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes The power amplifier (PA) is the key component of the transmit chain in a mobile telecommunication system. It allows the coverage of a wide service area but it’s non-linear effects need to be compensated in order to obtain high linearity and efficiency without introducing interference on the adjacent channels. Digital Pre-Distortion (DPD) is the commonly used solution to overcome these problems. The The LTE system makes use of OFDM modulation used in modern systems, provides signals with wide bandwidth, but low average power, thus common PA designs achieve low average efficiency. Dual-input Doherty power amplifiers with digital steering introduce new degrees of freedom in terms of linearization and reconfiguration. This work analyzes the tradeoffs between linearity, efficiency and linearization bandwidth, when digitally driving the DPA inputs separately. The knowledge of the physics of the devices allows to design a workflow to linearize the dual-input DPA obtaining high efficiency and reconfigurability. In this work an application of a bio inspired optimization algorithm show how to calibrate the DPD directly at the base-station. 2025-12-16T05:42:20Z 2025-12-16T05:42:20Z 2025-12-15T15:03:13Z 2018 book ONIX_20251215T160010_9783961470815_19 https://library.oapen.org/handle/20.500.12657/109139 9783961470815 9783961470808 https://directory.doabooks.org/handle/20.500.12854/170265 eng FAU Studien aus der Elektrotechnik open access image/jpeg Attribution-NonCommercial-NoDerivatives 4.0 International https://library.oapen.org/bitstream/20.500.12657/109139/1/9783961470815.pdf FAU University Press 10.25593/978-3-96147-081-5 10.25593/978-3-96147-081-5 2c600dea-eece-4066-87be-da335e323fdb 9783961470815 9783961470808 117 Erlangen open access |
| spellingShingle | Vorverzerrung Power Amplifier Linearization Partikel-Schwarm-Optimierung Basisstation PA-Anlage OFDM Leistungsverstärker Algorithmus Digital Signal Processing thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes Donati, Giovanni Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends |
| title | Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends |
| title_full | Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends |
| title_fullStr | Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends |
| title_full_unstemmed | Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends |
| title_short | Advanced Digital Predistortion Algorithms for modern Base-Station Front-Ends |
| title_sort | advanced digital predistortion algorithms for modern base station front ends |
| topic | Vorverzerrung Power Amplifier Linearization Partikel-Schwarm-Optimierung Basisstation PA-Anlage OFDM Leistungsverstärker Algorithmus Digital Signal Processing thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes |
| topic_facet | Vorverzerrung Power Amplifier Linearization Partikel-Schwarm-Optimierung Basisstation PA-Anlage OFDM Leistungsverstärker Algorithmus Digital Signal Processing thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes |
| url | ONIX_20251215T160010_9783961470815_19 |
| work_keys_str_mv | AT donatigiovanni advanceddigitalpredistortionalgorithmsformodernbasestationfrontends |