Title :
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
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;
Conference_Titel :
Mobile and Wireless Communications Network, 2002. 4th International Workshop on
Print_ISBN :
0-7803-7605-6
DOI :
10.1109/MWCN.2002.1045706
