Performance of DS-CDMA system with M-ary orthogonal modulation and successive interference cancellation

Author

Xue, Guoqiang ; Gunawan, Erry ; Dubey, V.K. ; Soh, C.B.

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore

fYear

1997

fDate

9-12 Sep 1997

Firstpage

840

Abstract

The performance of a DS-CDMA system with M-ary orthogonal modulation is investigated; through computer experiments and mathematical analysis we find the variance of multiple access interference (MAI) in synchronous AWGN channels should be twice as much as adopted in previous references. The system performance of successive interference cancellation in multipath Rayleigh fading channels is also investigated by means of simulation. Our results show that successive interference cancellation is a simple yet effective way to mitigate MAI when the user density is low

Keywords

Gaussian channels; Rayleigh channels; code division multiple access; fading; interference suppression; multipath channels; quadrature phase shift keying; radiofrequency interference; spread spectrum communication; synchronisation; DS-CDMA system; M-ary orthogonal modulation; MAI; low user density; multipath Rayleigh fading channels; multiple access interference; performance; successive interference cancellation; synchronous AWGN channels; AWGN channels; Computational modeling; Decorrelation; Detectors; Interference cancellation; Mathematical analysis; Mathematical model; Multiaccess communication; Performance analysis; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on

Print_ISBN

0-7803-3676-3

Type

conf

DOI

10.1109/ICICS.1997.652097

Filename

652097