A hermite interpolated LUT for RF power amplifiers
Digital predistortion is one of the most widely used techniques to linearize a power amplifier (PA) to reduce the error vector magnitude (EVM) distortion and spectral regrowth. By far, the lookup table (LUT) predistorters are most frequently used scheme to mitigate the effects of non-linear power am...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universiti Putra Malaysia Press
2017
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/55895/1/35-JTS%28S%29-0149-2016-4thProof.pdf |
| _version_ | 1796976366981218304 |
|---|---|
| author | Selvadurai, Dinaagaren Mohd Sidek, Roslina Al-Hussaini, Khalid Taher Mohammed Mohd Ali, Borhanuddin |
| author_facet | Selvadurai, Dinaagaren Mohd Sidek, Roslina Al-Hussaini, Khalid Taher Mohammed Mohd Ali, Borhanuddin |
| author_sort | Selvadurai, Dinaagaren |
| collection | UPM |
| description | Digital predistortion is one of the most widely used techniques to linearize a power amplifier (PA) to reduce the error vector magnitude (EVM) distortion and spectral regrowth. By far, the lookup table (LUT) predistorters are most frequently used scheme to mitigate the effects of non-linear power amplifier. In this paper, a new algorithm of joint-polynominal LUT predistorter which attains the best linearization performance is proposed. The algorithm employs the hermite interpolation LUT, which has a higher accuracy of interpolation. Simulation results show that the proposed method provides a better rejection of EVM distortion and an improvement of 30-40% of adjacent channel leakage ratio (ACLR) for the wideband code division multiple access at a minimal memory usage. |
| first_indexed | 2024-03-06T09:24:47Z |
| format | Article |
| id | upm.eprints-55895 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:24:47Z |
| publishDate | 2017 |
| publisher | Universiti Putra Malaysia Press |
| record_format | dspace |
| spelling | upm.eprints-558952017-07-05T03:29:59Z http://psasir.upm.edu.my/id/eprint/55895/ A hermite interpolated LUT for RF power amplifiers Selvadurai, Dinaagaren Mohd Sidek, Roslina Al-Hussaini, Khalid Taher Mohammed Mohd Ali, Borhanuddin Digital predistortion is one of the most widely used techniques to linearize a power amplifier (PA) to reduce the error vector magnitude (EVM) distortion and spectral regrowth. By far, the lookup table (LUT) predistorters are most frequently used scheme to mitigate the effects of non-linear power amplifier. In this paper, a new algorithm of joint-polynominal LUT predistorter which attains the best linearization performance is proposed. The algorithm employs the hermite interpolation LUT, which has a higher accuracy of interpolation. Simulation results show that the proposed method provides a better rejection of EVM distortion and an improvement of 30-40% of adjacent channel leakage ratio (ACLR) for the wideband code division multiple access at a minimal memory usage. Universiti Putra Malaysia Press 2017 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/55895/1/35-JTS%28S%29-0149-2016-4thProof.pdf Selvadurai, Dinaagaren and Mohd Sidek, Roslina and Al-Hussaini, Khalid Taher Mohammed and Mohd Ali, Borhanuddin (2017) A hermite interpolated LUT for RF power amplifiers. Pertanika Journal of Science & Technology, 25 (spec. Feb.). pp. 299-306. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2025%20(S)%20Feb.%202017/35-JTS(S)-0149-2016-4thProof.pdf |
| spellingShingle | Selvadurai, Dinaagaren Mohd Sidek, Roslina Al-Hussaini, Khalid Taher Mohammed Mohd Ali, Borhanuddin A hermite interpolated LUT for RF power amplifiers |
| title | A hermite interpolated LUT for RF power amplifiers |
| title_full | A hermite interpolated LUT for RF power amplifiers |
| title_fullStr | A hermite interpolated LUT for RF power amplifiers |
| title_full_unstemmed | A hermite interpolated LUT for RF power amplifiers |
| title_short | A hermite interpolated LUT for RF power amplifiers |
| title_sort | hermite interpolated lut for rf power amplifiers |
| url | http://psasir.upm.edu.my/id/eprint/55895/1/35-JTS%28S%29-0149-2016-4thProof.pdf |
| work_keys_str_mv | AT selvaduraidinaagaren ahermiteinterpolatedlutforrfpoweramplifiers AT mohdsidekroslina ahermiteinterpolatedlutforrfpoweramplifiers AT alhussainikhalidtahermohammed ahermiteinterpolatedlutforrfpoweramplifiers AT mohdaliborhanuddin ahermiteinterpolatedlutforrfpoweramplifiers AT selvaduraidinaagaren hermiteinterpolatedlutforrfpoweramplifiers AT mohdsidekroslina hermiteinterpolatedlutforrfpoweramplifiers AT alhussainikhalidtahermohammed hermiteinterpolatedlutforrfpoweramplifiers AT mohdaliborhanuddin hermiteinterpolatedlutforrfpoweramplifiers |