Compensation of linear and nonlinear distortions in envelope tracking amplifier

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

5 Citations (Scopus)

Abstract

This paper considers a problem of time-misalignment between envelope and RF signals in envelope-tracking amplifiers. We propose two novel time-misalignment compensation methods which are based on the concepts of self-tuning control and model reference control from adaptive control theory. The performance of proposed methods, which we measure by the achievable adjacent-channel power ratio, is compared to the performance of the state-of-the-art method. Simulation results suggest that the time-misalignment compensation which is based on self-tuning structure offers a comparable performance as the state-of-the-art method. On the other hand, the time-misalignment compensation which is based on model reference structure outperforms the state-of-the-art method by 20 dB on the average. Furthermore, compensation with model reference structure appears to be very robust to changes in system parameters. (10 refs.)
Original languageEnglish
Title of host publication19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008
Place of PublicationPiscataway, NJ, USA
PublisherInstitute of Electrical and Electronic Engineers IEEE
Pages5
ISBN (Print)978-1-4244-2643-0
DOIs
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
Event2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008 -
Duration: 1 Jan 2008 → …

Conference

Conference2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008
Period1/01/08 → …

Fingerprint

Nonlinear distortion
Tuning
Control theory
Compensation and Redress

Keywords

  • adaptive predistortion
  • nonlinear effects
  • Wiener systems

Cite this

Kotelba, A., Hekkala, A., & Lasanen, M. (2008). Compensation of linear and nonlinear distortions in envelope tracking amplifier. In 19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008 (pp. 5). Piscataway, NJ, USA: Institute of Electrical and Electronic Engineers IEEE. https://doi.org/10.1109/PIMRC.2008.4699408
Kotelba, Adrian ; Hekkala, Atso ; Lasanen, Mika. / Compensation of linear and nonlinear distortions in envelope tracking amplifier. 19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008. Piscataway, NJ, USA : Institute of Electrical and Electronic Engineers IEEE, 2008. pp. 5
@inproceedings{cb28bdd46c634f3faf2b6aa839536cd6,
title = "Compensation of linear and nonlinear distortions in envelope tracking amplifier",
abstract = "This paper considers a problem of time-misalignment between envelope and RF signals in envelope-tracking amplifiers. We propose two novel time-misalignment compensation methods which are based on the concepts of self-tuning control and model reference control from adaptive control theory. The performance of proposed methods, which we measure by the achievable adjacent-channel power ratio, is compared to the performance of the state-of-the-art method. Simulation results suggest that the time-misalignment compensation which is based on self-tuning structure offers a comparable performance as the state-of-the-art method. On the other hand, the time-misalignment compensation which is based on model reference structure outperforms the state-of-the-art method by 20 dB on the average. Furthermore, compensation with model reference structure appears to be very robust to changes in system parameters. (10 refs.)",
keywords = "adaptive predistortion, nonlinear effects, Wiener systems",
author = "Adrian Kotelba and Atso Hekkala and Mika Lasanen",
year = "2008",
doi = "10.1109/PIMRC.2008.4699408",
language = "English",
isbn = "978-1-4244-2643-0",
pages = "5",
booktitle = "19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008",
publisher = "Institute of Electrical and Electronic Engineers IEEE",
address = "United States",

}

Kotelba, A, Hekkala, A & Lasanen, M 2008, Compensation of linear and nonlinear distortions in envelope tracking amplifier. in 19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008. Institute of Electrical and Electronic Engineers IEEE, Piscataway, NJ, USA, pp. 5, 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008, 1/01/08. https://doi.org/10.1109/PIMRC.2008.4699408

Compensation of linear and nonlinear distortions in envelope tracking amplifier. / Kotelba, Adrian; Hekkala, Atso; Lasanen, Mika.

19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008. Piscataway, NJ, USA : Institute of Electrical and Electronic Engineers IEEE, 2008. p. 5.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Compensation of linear and nonlinear distortions in envelope tracking amplifier

AU - Kotelba, Adrian

AU - Hekkala, Atso

AU - Lasanen, Mika

PY - 2008

Y1 - 2008

N2 - This paper considers a problem of time-misalignment between envelope and RF signals in envelope-tracking amplifiers. We propose two novel time-misalignment compensation methods which are based on the concepts of self-tuning control and model reference control from adaptive control theory. The performance of proposed methods, which we measure by the achievable adjacent-channel power ratio, is compared to the performance of the state-of-the-art method. Simulation results suggest that the time-misalignment compensation which is based on self-tuning structure offers a comparable performance as the state-of-the-art method. On the other hand, the time-misalignment compensation which is based on model reference structure outperforms the state-of-the-art method by 20 dB on the average. Furthermore, compensation with model reference structure appears to be very robust to changes in system parameters. (10 refs.)

AB - This paper considers a problem of time-misalignment between envelope and RF signals in envelope-tracking amplifiers. We propose two novel time-misalignment compensation methods which are based on the concepts of self-tuning control and model reference control from adaptive control theory. The performance of proposed methods, which we measure by the achievable adjacent-channel power ratio, is compared to the performance of the state-of-the-art method. Simulation results suggest that the time-misalignment compensation which is based on self-tuning structure offers a comparable performance as the state-of-the-art method. On the other hand, the time-misalignment compensation which is based on model reference structure outperforms the state-of-the-art method by 20 dB on the average. Furthermore, compensation with model reference structure appears to be very robust to changes in system parameters. (10 refs.)

KW - adaptive predistortion

KW - nonlinear effects

KW - Wiener systems

U2 - 10.1109/PIMRC.2008.4699408

DO - 10.1109/PIMRC.2008.4699408

M3 - Conference article in proceedings

SN - 978-1-4244-2643-0

SP - 5

BT - 19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008

PB - Institute of Electrical and Electronic Engineers IEEE

CY - Piscataway, NJ, USA

ER -

Kotelba A, Hekkala A, Lasanen M. Compensation of linear and nonlinear distortions in envelope tracking amplifier. In 19th International Symposium on Personal, Indoor and Mobile Radio Communications. Cannes, France, 15 - 18 Sept. 2008. Piscataway, NJ, USA: Institute of Electrical and Electronic Engineers IEEE. 2008. p. 5 https://doi.org/10.1109/PIMRC.2008.4699408