Title :
Double-threshold selective PIC receiver for CDMA communications in multipath fading channel
Author :
Fantacci, Romano ; Morosi, Simone ; Villano, Serena
Author_Institution :
Dipt. di Ingegneria Elettronica, Univ. of Florence, Firenze, Italy
Abstract :
This paper deals with a multiuser cancellation detection scheme for DS/CDMA communication systems where the BPSK modulation technique is used in transmission. The proposed detector, named double-threshold selective parallel interference cancellation (DTS-PIC), divide users according to their reliability in three groups and perform groupwise interference reconstruction and cancellation. The case of asynchronous users in a multipath fading channel is mainly considered. In particular, it is shown here that the DTS-PIC receiver exhibits a good behavior in comparison with previously proposed alternatives
Keywords :
code division multiple access; fading channels; multipath channels; multiuser channels; phase shift keying; radio receivers; radiofrequency interference; signal detection; spread spectrum communication; BPSK; DS/CDMA communication systems; DTS-PIC receiver; asynchronous users; double-threshold selective PIC receiver; groupwise interference cancellation; groupwise interference reconstruction; hard detection; multipath fading channel; multiuser cancellation detection; AWGN; Binary phase shift keying; Degradation; Detectors; Fading; Interference cancellation; Matched filters; Multiaccess communication; Multiple access interference; Signal processing;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.945012
