Title :
On channel capacity of parallel interference cancellation with outage probability in coded DS-CDMA systems
Author :
Li, Husheng ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
Abstract :
The channel capacity of DS-CDMA systems using parallel interference cancellation (PIC) is considered. It is shown that in non-fading channels, PIC does not improve channel capacity. In frequency flat fading channels without power control and with outage probability, the capacity improvement and spectral efficiencies of different PIC schemes are analyzed. The optimal capacity of such fading channels is given and shown numerically to be achieved by a PIC+minimum-mean-square-error scheme in most cases.
Keywords :
channel capacity; code division multiple access; fading channels; interference suppression; least mean squares methods; multiuser detection; probability; radiofrequency interference; spread spectrum communication; channel capacity; coded DS-CDMA system; direct sequence code division multiple access; frequency flat fading channels; minimum-mean-square-error scheme; multiuser detection; outage probability; parallel interference cancellation; AWGN; Channel capacity; Decoding; Fading; Frequency; Interference cancellation; Multiaccess communication; Multiuser detection; Power control; Silicon carbide;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1291955
