Cyclostationary based interference cancellation in long code DS/CDMA systems

Author

Zali, A. ; Hendessi, F.

Author_Institution

Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Iran

fYear

2002

fDate

2002

Firstpage

115

Lastpage

118

Abstract

The structure of a FREquency SHift decision-feedback equalizer (FRESH-DFE), an equalizer design based on the cyclostationary property of modulated signals, is obtained for a DS/CDMA system. The performance of FRESH-DFE is compared with the conventional DFE in a long code DS/CDMA System. Our simulation results show that the FRESH-DFE provides better performance in terms of the mean square error and the bit error rate (BER). The new equalizer is superior to the DFE in rejecting interference when the longer code is used and the interference power is higher.

Keywords

channel bank filters; code division multiple access; decision feedback equalisers; error statistics; interference suppression; mean square error methods; radiofrequency interference; spread spectrum communication; BER; DFE; bit error rate; cyclostationary property; filter bank; frequency shift decision-feedback equalizer; interference cancellation; long code DS-CDMA; mean square error; signal processing methods; Autocorrelation; Decision feedback equalizers; Density functional theory; Digital modulation; Frequency; Interference cancellation; Mean square error methods; Multiaccess communication; Multiple access interference; Power harmonic filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Mobile and Wireless Communications Network, 2002. 4th International Workshop on

Print_ISBN

0-7803-7605-6

Type

conf

DOI

10.1109/MWCN.2002.1045706

Filename

1045706