TY - GEN
T1 - Analysis of inter-modulation products and nonlinear distortion in RF OFDM transmitter systems
AU - O'Droma, Máirtín
AU - Lei, Yiming
AU - Bertran, Eduard
AU - Gilabert, Pere
PY - 2009
Y1 - 2009
N2 - Orthogonal Frequency Division Multiplexing (OFDM) systems are significantly sensitive to the nonlinear distortion caused by RF power amplifiers. Generally, nonlinear distortion of OFDM signals, which generates a huge number of inter-modulation products (IMPs), is treated as a macro phenomenon. In this paper, low order IMPs are classified into various categories by their composition and the characteristics of IMPs in each category is presented. Relationships between single IMP and nonlinear distortion are also explored. The popular Bessel-Fourier (BF) envelope model with associated three signal representation approaches are used as analysis tools. An IEEE 802.11a signal is used and the nonlinear envelope is measured from a GaN power amplifier.
AB - Orthogonal Frequency Division Multiplexing (OFDM) systems are significantly sensitive to the nonlinear distortion caused by RF power amplifiers. Generally, nonlinear distortion of OFDM signals, which generates a huge number of inter-modulation products (IMPs), is treated as a macro phenomenon. In this paper, low order IMPs are classified into various categories by their composition and the characteristics of IMPs in each category is presented. Relationships between single IMP and nonlinear distortion are also explored. The popular Bessel-Fourier (BF) envelope model with associated three signal representation approaches are used as analysis tools. An IEEE 802.11a signal is used and the nonlinear envelope is measured from a GaN power amplifier.
KW - IMP
KW - Nonlinear distortion
KW - OFDM
KW - Power amplifier
UR - http://www.scopus.com/inward/record.url?scp=70349676032&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2009.5073392
DO - 10.1109/VETECS.2009.5073392
M3 - Conference contribution
AN - SCOPUS:70349676032
SN - 9781424425174
T3 - IEEE Vehicular Technology Conference
BT - VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
T2 - VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
Y2 - 26 April 2009 through 29 April 2009
ER -