Adaptive Nonlinearity Compensation for Power Amplifiers Based on Local-Modeling Approach

Author

Yuanming, Ding ; Akira, Sano

Author_Institution

Liaoning Key Lab. of Intelligent Inf. Process., Liaoning

fYear

2007

Firstpage

159

Lastpage

163

Abstract

A new predistortion linearization scheme is proposed to compensate nonlinear power amplifiers (PAs) in orthogonal frequency division multiplexing (OFDM) communication systems. The PA is represented by a Wiener-Hammerstein model. The inverse model of the PA is constructed based on the local modeling techniques. Furthermore, a look-up table (LUT) for constructing a predistorter (compensator) of PA is also given to simplify the proposed compensation scheme. The effectiveness of the proposed scheme is validated by a numerical simulation.

Keywords

OFDM modulation; linearisation techniques; power amplifiers; table lookup; Wiener-Hammerstein model; adaptive nonlinearity compensation; local-modeling approach; look-up table; nonlinear power amplifiers; orthogonal frequency division multiplexing; power amplifiers; predistortion linearization scheme; Baseband; High power amplifiers; Inverse problems; Nonlinear distortion; OFDM; Power amplifiers; Power engineering and energy; Power system modeling; Predistortion; Table lookup; Adaptive Compensation; Identification; Linearization; Power Amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference, 2007. CCC 2007. Chinese

Conference_Location

Hunan

Print_ISBN

978-7-81124-055-9

Electronic_ISBN

978-7-900719-22-5

Type

conf

DOI

10.1109/CHICC.2006.4347013

Filename

4347013