Title :
Analysis of CDMA RF channel nonlinear distortion
Author :
Songbai, He ; Li Mingyu ; Hongmin, Deng ; Juebang, Yu
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
Spectral regrowth of a code division multiple access (CDMA) signal passed through a weakly nonlinear circuit are analyzed using power series and statistical method The method yields an analytical expression for the autocorrelation function of the output signal as a the statistical function of the input signal transformed by a behavioral model of the amplifier. It provides helpful predictions of inter-modulation in wireless communication systems with nonlinear distortion effects. This method for the estimation of spectral regrowth for a CDMA signal passed through a nonlinear power circuit have been used in the design of a transceiver for CDMA communication systems.
Keywords :
UHF power amplifiers; code division multiple access; intermodulation; nonlinear distortion; transceivers; CDMA RF channel nonlinear distortion; RF power amplifier; autocorrelation function; behavioral model; code division multiple access; inter-modulation; power series; spectral regrowth; statistical method; transceiver; weakly nonlinear circuit; wireless communication systems; Autocorrelation; Circuit analysis; Multiaccess communication; Nonlinear circuits; Nonlinear distortion; Power amplifiers; Power system modeling; Radio frequency; Signal analysis; Statistical analysis;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180662
