Title :
Effect of system imperfections on BER performance of a CDMA receiver with multipath diversity combining
Author :
Panicker, John ; Kumar, Surinder
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada
fDate :
11/1/1996 12:00:00 AM
Abstract :
The bit error rate performance of a high chip rate, indoor code division multiple access multipath combining receiver with imperfections in power control, estimation of channel parameters (path amplitude and phase), and estimation of spreading code phase is analyzed. Imperfection in power control is taken into account by modeling the received signal power as a log normally distributed random variable. The estimate errors are modeled as zero mean Gaussian random variables. It is shown that the performance of such a receiver degrades when the variance of power control imperfection is above 0 dB, mean square error in channel parameter estimation is above 0.01, or standard deviation of the code phase error is above 0.1
Keywords :
code division multiple access; diversity reception; error statistics; indoor radio; land mobile radio; multipath channels; phase estimation; power control; pseudonoise codes; radio receivers; spread spectrum communication; telecommunication control; BER performance; CDMA receiver; bit error rate; channel parameter estimation; code phase error; estimate errors; high chip rate indoor CDMA multipath combining receiver; log normally distributed random variable; mean square error; multipath diversity combining; path amplitude; power control; received signal power; spreading code phase; system imperfections; zero mean Gaussian random variables; Amplitude estimation; Bit error rate; Degradation; Mean square error methods; Multiaccess communication; Parameter estimation; Performance analysis; Phase estimation; Power control; Random variables;
Journal_Title :
Vehicular Technology, IEEE Transactions on
