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

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

688

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956858

Filename

956858