Title :
Multiuser receiver with multiple sensors in asynchronous CDMA systems
Author :
Lilleberg, Jorma ; Haifeng, Wang
Author_Institution :
Nokia Mobile Phones, Oulu, Finland
Abstract :
A multi-sensor multiuser receiver is proposed in this paper for asynchronous CDMA systems. The receiver consists of multiple sensors, RAKE receivers, channel estimators and a multiuser detector. The proposed receiver improves the signal-to-noise ratio, effectively counteracts the effects of fading and suppresses the multiple access interference. We compare the performance of the multi-sensor RAKE receiver, the conventional multistage detector and our generalized multistage detector with different numbers of sensors by simulations. Finally, the bit-error-rate results for Rayleigh fading channels with different system capacity are presented versus the signal to noise ratio
Keywords :
Rayleigh channels; code division multiple access; error statistics; interference suppression; radio receivers; radiofrequency interference; synchronisation; RAKE receivers; Rayleigh fading channel; asynchronous CDMA systems; bit-error-rate; channel estimators; multi-sensor multiuser receiver; multiple access interference; multiple sensors; multiuser detector; multiuser receiver; performance; signal-to-noise ratio; system capacity; Detectors; Fading; Interference cancellation; Multiaccess communication; Multipath channels; Multiple access interference; Multiuser detection; RAKE receivers; Sensor systems; Signal to noise ratio;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.796983
