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Analysis of RP Power Amplifier Nonlinearity and BER Characteristics for Multi­Carrier Transmission System  

신동환 (경남대학교 정보통신공학과 전파통신연구실)
이영철 (경남대학교 정보통신공학과 전파통신연구실)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.7, no.8, 2003 , pp. 1612-1620 More about this Journal
Abstract
This papers describes a nonlinear transfer function modelling of designed GaAs FET power amplifier by measured and simulated values of designed PA amplifier for multi­carrier transmission system, With the results of PA nonlinearity characteristic, we can estimates AM­AM and AM­PM of designed PA. According to the estimated nonlinear characteristics, we can analysis the ACPR of PA for spectral regrowth, the error vector measurement(EVM) of constallation signals and bit error rate of QPSK and 64­QAM. The suggested nonlinear modelling results are used to get an accurate estimate of digital characteristics between PA amplifier and wireless multi­carrier transmission system using OFDM.
Keywords
OFDM(Orthogonal Frequency Division Multiplexing); EVM(Error Vector Magnitude); PAPR(Peak to Average Power Ratio); PSD(Power Spectral Density); Spectrum Regrowth;
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