A simple characterization of power spectral density for nonlinearly amplified OFDM signals

Author

Taewoo Lee ; Ochiai, Hideya

Author_Institution

Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2014

fDate

19-23 Jan. 2014

Firstpage

88

Lastpage

90

Abstract

In this work, by exploiting the concept of total signal-to-distortion power ratio (SDR), we propose a simple method for estimating the spectral regrowth of the orthogonal frequency division multiplexing (OFDM) signals due to the power amplifier (PA) nonlinearity based on the third-order polynomial model. The accuracy of the proposed approach is confirmed by both the simulation and measurement using a real PA.

Keywords

OFDM modulation; nonlinear distortion; polynomials; power amplifiers; spectral analysis; OFDM signal nonlinear amplification; PA; SDR; orthogonal frequency division multiplexing signals; power amplifier; power spectral density characterization; signal-to-distortion power ratio; spectral regrowth estimation; third-order polynomial model; Bandwidth; Computers; Correlation; Frequency measurement; Nonlinear distortion; OFDM; Polynomials; Nonlinearity; OFDM; Polynomial PA Model; Power Amplifier;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Amplifiers for Wireless and Radio Applications (PAWR), 2014 IEEE Topical Conference on

Conference_Location

Newport Beach, CA

Print_ISBN

978-1-4799-2298-7

Type

conf

DOI

10.1109/PAWR.2014.6825744

Filename

6825744