Stochastic Analysis and Measurement of Error Vector Magnitude of OFDM Signal in MMIC Nonlinear Power Amplifier

Author

Kim, Joon Hyung ; Kwon, Heon Kuk ; Jung, Jae Ho ; Kim, Sung Min ; Lee, Gwang Cheon

Author_Institution

Electron. & Telecommun. Res. Inst., Daejeon

fYear

2006

Firstpage

1

Lastpage

5

Abstract

Theoretical approach to predict the error vector magnitude (EVM) performance of an orthogonal frequency-division multiplexing (OFDM) system in the presence of nonlinear distortion caused by RF amplifiers is described. It is shown that the EVM model can be described by means of the autocorrelation of uncorrelated distortion noise term and a common complex gain. For the experimental validation, an EVM value of modulated signals through the fabricated HBT MMIC power amplifier is derived by the proposed method and compared with the measurement results.

Keywords

MMIC power amplifiers; OFDM modulation; heterojunction bipolar transistors; stochastic processes; HBT MMIC power amplifier; MMIC nonlinear power amplifier; OFDM signal; RF amplifiers; distortion noise term; error vector magnitude; heterojunction bipolar transistors; modulated signals; monolithic microwave integrated circuits; nonlinear distortion; orthogonal frequency division multiplexing system; stochastic analysis; Distortion measurement; Frequency division multiplexing; MMICs; Nonlinear distortion; OFDM; Power amplifiers; Power measurement; Radiofrequency amplifiers; Signal analysis; Stochastic processes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0062-7

Electronic_ISBN

1-4244-0063-5

Type

conf

DOI

10.1109/VTCF.2006.605

Filename

4109870