Title :
Accurate prediction of spectral regrowth and in-channel distortion based on CDMA signal time-domain model
Author :
Aparin, Vladimir
Author_Institution :
QUALCOMM Inc., San Diego, CA, USA
Abstract :
Spectral regrowth of a CDMA signal and in-channel distortion causing the gain compression or expansion are analyzed using the power series and statistical theory. The proposed time-domain model of the CDMA signal is shown to give more accurate distortion estimates than the widely used narrow-band Gaussian noise assumption. The model was also used to show the difference between statistical properties of the CDMA signal and the Gaussian noise
Keywords :
Gaussian noise; code division multiple access; nonlinear distortion; time-domain analysis; CDMA signal; gain compression; gain expansion; in-channel distortion; narrow-band Gaussian noise; power series; spectral regrowth; statistical properties; time-domain model; Baseband; Drives; Gaussian noise; Low pass filters; Multiaccess communication; Narrowband; Nonlinear distortion; Pulse modulation; Signal analysis; Time domain analysis;
Conference_Titel :
Custom Integrated Circuits, 2001, IEEE Conference on.
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-6591-7
DOI :
10.1109/CICC.2001.929722
