Adaptive predistortion for high power amplifier with linear dynamics

Yuanming Ding, Hiromitsu Ohmori, Akira Sano

Research output: Contribution to journalConference article

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)III121-III124
JournalMidwest Symposium on Circuits and Systems
Volume3
Publication statusPublished - 2004 Dec 1
EventThe 2004 47th Midwest Symposium on Circuits and Systems - Conference Proceedings - Hiroshima, Japan
Duration: 2004 Jul 252004 Jul 28

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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