Title :
Interference cancellation schemes for a dual-rate variable processing gain DS/CDMA system
Author :
Hwang, Sun H. ; Kang, Chung G.
Author_Institution :
SK Telecom Central R&D Center, South Korea
Abstract :
The existing multi-stage interference cancellation (IC) schemes have been extended to be specialized for the dual-rate DS/CDMA system with variable processing gains subject to the graded power control. The bit error rate performance using these IC schemes for the dual-rate DS/CDMA system is analytically derived under a frequency non-selective fading channel. Numerical examples in this analysis demonstrate that the rate-dependent near-far effect can be effectively eliminated with the proposed approaches under unfavorable situation of the graded power control, which incurs additional interference in the variable processing gain DS/CDMA system
Keywords :
spread spectrum communication; BER performance; bit error rate; coherent BPSK; dual-rate DS/CDMA system; frequency nonselective fading channel; graded power control; multi-stage interference cancellation; multimedia services; rate-dependent near-far effect; third generation mobile radio systems; variable processing gains; Bit error rate; Decorrelation; Degradation; Interference cancellation; Multiaccess communication; Multimedia systems; Performance gain; Power control; Research and development; Sun;
Conference_Titel :
Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3777-8
DOI :
10.1109/ICUPC.1997.627208
