Title :
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
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;
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
DOI :
10.1109/PAWR.2014.6825744
