Title :
Effect of system imperfections on BER performance of CDMA receiver with multipath diversity combining
Author :
Panicker, John P C ; Kumar, Surinder
Author_Institution :
Saskatchewan Univ., Saskatoon, Sask., Canada
Abstract :
The bit error rate performance of a multipath combining type code division multiple access receiver with imperfections in power control, channel parameter estimation and spreading code phase estimation 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 significantly degrades when variance of power control imperfection is above 0 dB, mean square error in channel parameter estimation is above 0.01 and standard deviation of the code phase error is above 0.1
Keywords :
Gaussian processes; code division multiple access; coding errors; diversity reception; error statistics; land mobile radio; log normal distribution; multipath channels; phase estimation; power control; pseudonoise codes; radio receivers; random processes; spread spectrum communication; telecommunication control; BER performance; CDMA receiver; bit error rate performance; channel parameter estimation; code phase error; log normally distributed random variable; mean square error; multipath combining type code division multiple access receiver; power control; power control imperfection; spreading code phase estimation; system imperfections; zero mean Gaussian random variables; Bit error rate; Degradation; Mean square error methods; Multiaccess communication; Parameter estimation; Performance analysis; Phase estimation; Power control; Power system modeling; Random variables;
Conference_Titel :
WESCANEX 95. Communications, Power, and Computing. Conference Proceedings., IEEE
Conference_Location :
Winnipeg, Man.
Print_ISBN :
0-7803-2725-X
DOI :
10.1109/WESCAN.1995.494062
