An analytical model for performance evaluation of multistage parallel interference cancellation detectors in CDMA systems

Author

Xue, Guoqiang ; Weng, Jianfeng ; LE-NGOC, THO ; Tahar, Sofiène

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

2

fYear

1999

fDate

1999

Firstpage

1144

Abstract

In multistage parallel interference cancellation (PIC), multiaccess interference from different users are mutually correlated. In this paper, an analytical model is proposed to refine the variance of the decision variable by taking the correlation into account. Price´s theorem is used to evaluate the non-linear relations involved in some of the covariances. It is shown that the derived variance is very close to that obtained by simulation and improves the accuracy of BER evaluation

Keywords

AWGN; code division multiple access; correlation methods; covariance analysis; error statistics; interference suppression; multiuser channels; radiofrequency interference; signal detection; AWGN; BER evaluation accuracy; CDMA systems; Price´s theorem; additive white Gaussian noise; analytical model; correlated interference; covariances; decision variable; multiaccess interference; multistage parallel interference cancellation detectors; nonlinear relations; performance evaluation; simulation; variance; AWGN; Additive white noise; Analytical models; Bit error rate; Detectors; Gaussian noise; Gaussian processes; Interference cancellation; Multiaccess communication; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.798615

Filename

798615