Title :
Analysis of CDMA signal spectral regrowth and waveform quality
Author_Institution :
Qualcomm Inc., San Diego, CA, USA
Abstract :
Spectral regrowth and waveform quality of a reverse-link CDMA signal passed through a weakly nonlinear circuit are analyzed using the power series and statistical methods. The analysis is based on a time-domain model of the signal that gives more accurate distortion estimates than the widely used Gaussian noise assumption. The model is also used to derive the probability density function of the CDMA signal to show its difference from that of the Gaussian noise.
Keywords :
Q-factor; code division multiple access; nonlinear distortion; probability; series (mathematics); statistical analysis; time-domain analysis; CDMA signal spectral regrowth; CDMA waveform quality; IS-95 systems; power series; probability density function; reverse-link CDMA signal; statistical methods; time-domain model; weakly nonlinear circuit; Circuit analysis; Gaussian noise; Linear circuits; Low pass filters; Multiaccess communication; Nonlinear distortion; Probability density function; Signal analysis; Statistical analysis; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966826
