Title :
Multistage parallel interference canceller for asynchronous multirate DS-CDMA systems in AWGN and flat Rayleigh channels
Author :
Jeszensky, Paul Jean E ; Abrao, Taufik
Author_Institution :
LCS, Sao Paulo, Brazil
Abstract :
The performance of a multi-code (MC) multirate DS-CDMA (direct sequence-code division multiple access) transmission system is analyzed, associated to a multistage parallel interference cancellation (MPIC) structure with a hyperbolic tangent decision device in the intermediate stages. Extensive Monte Carlo simulations (MCS) considering total and partial cancellation in additive white Gaussian noise (AWGN) and flat Rayleigh channels indicate great performance gain of the MC-MPIC structure when compared to conventional MC detection. The results show the feasibility of the proposed structure for future third generation (3G) systems.
Keywords :
3G mobile communication; AWGN channels; Rayleigh channels; code division multiple access; interference suppression; mobile radio; radiofrequency interference; spread spectrum communication; AWGN channels; additive white Gaussian noise; asynchronous DS-CDMA systems; direct sequence-code division multiple access; flat Rayleigh channels; hyperbolic tangent decision device; multi-code DS-CDMA; multirate DS-CDMA systems; multistage parallel interference cancellation; third generation mobile systems; AWGN; Delay; Fading; Feedback; Interference cancellation; Multiaccess communication; Multiple access interference; Multiuser detection; Rayleigh channels; Silicon carbide;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on
Print_ISBN :
0-7803-7627-7
DOI :
10.1109/ISSSTA.2002.1049333
