Title :
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
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;
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
DOI :
10.1109/CHICC.2006.4347013
