Title :
Multistage interference cancellation methods for multiuser DS/CDMA detection and performance analysis
Author :
Damani, Rasoul ; Nasiri-Kenari, Masoumeh ; Shayesteh, Mahrokh G.
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
fDate :
6/23/1905 12:00:00 AM
Abstract :
In this paper we consider two multistage multiuser DS/CDMA detectors in multipath fading channels. The first detector is a modified version of detector proposed in Hui and Letaief (1998), and the second detector is a combination of the first one used as a PIC (parallel interference cancellation) detector and a detector called SIC (serial interference cancellation). These detectors take the advantage of multipath diversity to improve the signal to noise ratio (SNR). We also use an adaptive method to compute the threshold levels. We obtain an analytical equation for BER (bit error rate). The results show that the mentioned methods achieve much better performance than taht of Hui and Letaief
Keywords :
cellular radio; code division multiple access; diversity reception; error statistics; fading channels; interference suppression; multipath channels; multiuser channels; radio receivers; radiofrequency interference; signal detection; spread spectrum communication; BER; PIC detector; SIC; SNR; adaptive method; bit error rate; multipath diversity; multipath fading channels; multistage interference cancellation methods; multistage multiuser detectors; multiuser DS/CDMA detection; parallel interference cancellation; performance analysis; serial interference cancellation; signal to noise ratio; threshold levels; Bit error rate; Detectors; Equations; Fading; Interference cancellation; Multiaccess communication; Multiple access interference; Performance analysis; Signal to noise ratio; Silicon carbide;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956858
