Spectrum Analysis of OFDM-Based Communication Systems with Nonlinear High Power Amplifier

Author

Yan Chen ; Chun-hua Zhu ; Yan, Chen ; Hui Xiao

Author_Institution

Sch. of Comput. & Inf. Eng., Beijing Technol. & Bus. Univ., Beijing, China

Volume

2

fYear

2010

fDate

12-14 April 2010

Firstpage

451

Lastpage

454

Abstract

In RF communication design and analysis, the nonlinear effects of high power amplifier (HPA) are critical. But its AM/PM distortion is usually ignored in existing literatures for simplicity. The AM/AM and AM/PM characteristics of HPA are modeled by the power series expansion, and the theoretical expressions of out-band emission levels are derived in this paper. The predicted power spectrum of amplified OFDM signal by using this model agrees with the simulation results both the pass band and shoulder area.

Keywords

OFDM modulation; fading channels; multipath channels; spectral analysis; OFDM-based communication systems; amplified OFDM signal; nonlinear effects; nonlinear high power amplifier; power series expansion; spectrum analysis; Communication systems; High power amplifiers; Interference; OFDM modulation; Power amplifiers; Power engineering and energy; Power engineering computing; Power system modeling; Predictive models; Radio frequency; OFDM; high power amplifier; spectrum analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Mobile Computing (CMC), 2010 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-6327-5

Electronic_ISBN

978-1-4244-6328-2

Type

conf

DOI

10.1109/CMC.2010.155

Filename

5471303