Adaptive predistortion for high power amplifier with linear dynamics

Yuanming Ding Yuanming Ding,H Ohmori,A Sano

doi:10.1109/mwscas.2004.1354306

Adaptive predistortion for high power amplifier with linear dynamics

Yuanming Ding Yuanming Ding, H Ohmori + Show 1 more

https://doi.org/10.1109/mwscas.2004.1354306

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Publication Date: Jul 25, 2004

Citations: 10

Affiliation: Dalian University of Technology, Dalian University, Keio University

#High Power Amplifiers #Wiener-Hammerstein Model + Show 8 more

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Abstract

The generalized Wiener-Hammerstein model (WHM) is adopted to describe the input-output relationship of high power amplifiers (HPA) with linear dynamics in OFDM systems. A power series model with memory is proposed to approximate WHM or inverse of the HPA, and adaptive predistortion for compensating nonlinearity of HPA is proposed based on identification. The effectiveness of the proposed predistortion method is validated by numerical simulation for 64QAM-OFDM systems.

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