Compensation of Nonlinear Distortion During Transmission Based on the Adaptive Predistortion Method
Summary :
In many efforts to increase the efficiency of power amplifiers of mobile terminals, compensation of nonlinear distortion based on an adaptive predistortion method has performed an important role. In the course of basic evaluation of a method using a look-up table (LUT) and a method using an approximation for compensation of nonlinear distortion, a newly developed method using approximation and a ROM type LUT with a small-sized memory has been proposed to overcome barriers to practical application and disadvantages associated with the LUT method. Experimental trials of the proposed method were applied to narrow-band digital modulation systems. As a result, the proposed method was found to provide a satisfactory capability of compensating nonlinear distortion, with next adjacent channel interference of less than -55 dBc. The proposed method has advantages such as a small memory size and excellent RF performance, and is expected to occupy an important position in many adaptive predistortion methods.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E80-C No.6 pp.782-787
- Publication Date
- 1997/06/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Microwave and Millimeterwave High-power Devices)
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Takashi MATSUOKA, Masayuki ORIHASHI, Morikazu SAGAWA, Hikaru IKEDA, Kouei MISAIZU, "Compensation of Nonlinear Distortion During Transmission Based on the Adaptive Predistortion Method" in IEICE TRANSACTIONS on Electronics,
vol. E80-C, no. 6, pp. 782-787, June 1997, doi: .
Abstract: In many efforts to increase the efficiency of power amplifiers of mobile terminals, compensation of nonlinear distortion based on an adaptive predistortion method has performed an important role. In the course of basic evaluation of a method using a look-up table (LUT) and a method using an approximation for compensation of nonlinear distortion, a newly developed method using approximation and a ROM type LUT with a small-sized memory has been proposed to overcome barriers to practical application and disadvantages associated with the LUT method. Experimental trials of the proposed method were applied to narrow-band digital modulation systems. As a result, the proposed method was found to provide a satisfactory capability of compensating nonlinear distortion, with next adjacent channel interference of less than -55 dBc. The proposed method has advantages such as a small memory size and excellent RF performance, and is expected to occupy an important position in many adaptive predistortion methods.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e80-c_6_782/_p
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@ARTICLE{e80-c_6_782,
author={Takashi MATSUOKA, Masayuki ORIHASHI, Morikazu SAGAWA, Hikaru IKEDA, Kouei MISAIZU, },
journal={IEICE TRANSACTIONS on Electronics},
title={Compensation of Nonlinear Distortion During Transmission Based on the Adaptive Predistortion Method},
year={1997},
volume={E80-C},
number={6},
pages={782-787},
abstract={In many efforts to increase the efficiency of power amplifiers of mobile terminals, compensation of nonlinear distortion based on an adaptive predistortion method has performed an important role. In the course of basic evaluation of a method using a look-up table (LUT) and a method using an approximation for compensation of nonlinear distortion, a newly developed method using approximation and a ROM type LUT with a small-sized memory has been proposed to overcome barriers to practical application and disadvantages associated with the LUT method. Experimental trials of the proposed method were applied to narrow-band digital modulation systems. As a result, the proposed method was found to provide a satisfactory capability of compensating nonlinear distortion, with next adjacent channel interference of less than -55 dBc. The proposed method has advantages such as a small memory size and excellent RF performance, and is expected to occupy an important position in many adaptive predistortion methods.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Compensation of Nonlinear Distortion During Transmission Based on the Adaptive Predistortion Method
T2 - IEICE TRANSACTIONS on Electronics
SP - 782
EP - 787
AU - Takashi MATSUOKA
AU - Masayuki ORIHASHI
AU - Morikazu SAGAWA
AU - Hikaru IKEDA
AU - Kouei MISAIZU
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E80-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 1997
AB - In many efforts to increase the efficiency of power amplifiers of mobile terminals, compensation of nonlinear distortion based on an adaptive predistortion method has performed an important role. In the course of basic evaluation of a method using a look-up table (LUT) and a method using an approximation for compensation of nonlinear distortion, a newly developed method using approximation and a ROM type LUT with a small-sized memory has been proposed to overcome barriers to practical application and disadvantages associated with the LUT method. Experimental trials of the proposed method were applied to narrow-band digital modulation systems. As a result, the proposed method was found to provide a satisfactory capability of compensating nonlinear distortion, with next adjacent channel interference of less than -55 dBc. The proposed method has advantages such as a small memory size and excellent RF performance, and is expected to occupy an important position in many adaptive predistortion methods.
ER -
English
