An adaptive data predistorter for compensation of nonlinear distortion in OFDM systems

Author

Jeon, Won Gi ; Chang, Kyung Hi ; Cho, Yong Soo

Author_Institution

Dept. of Electron. Eng., Chungang Univ., Seoul, South Korea

Volume

45

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1167

Lastpage

1171

Abstract

In this paper, an adaptive data predistortion technique which can compensate for the nonlinear effect of a TWT high-power amplifier (HPA) in orthogonal frequency-division multiplexing (OFDM) systems is proposed. It is shown that the convergence time and MSE of an adaptive data predistorter can be significantly reduced by using a broadcasting technique and by designing appropriate training signals

Keywords

adaptive systems; broadcasting; compensation; convergence of numerical methods; frequency division multiplexing; power amplifiers; quadrature amplitude modulation; travelling wave amplifiers; MSE; OFDM systems; QAM; TWT; adaptive data predistortion technique; broadcasting technique; convergence time; high-power amplifier; nonlinear distortion compensation; orthogonal frequency-division multiplexing; training signals design; Convergence; Digital video broadcasting; Frequency division multiplexing; Intersymbol interference; Nonlinear distortion; OFDM modulation; Predistortion; Quadrature amplitude modulation; Random access memory; Read-write memory;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.634677

Filename

634677