A reduced complexity partial PIC detector

Author

Li, Yue-heng ; Wang, Yong ; Wang, Haifeng ; Cheng, Shi-xin

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

Volume

4

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

2299

Abstract

A reduced complexity multistage detector is introduced for DS-CDMA systems, which is derived from the soft sigmoid decision PIC (parallel interference cancellation) detector. From the derivation, we can see that this reduced complexity detector has a clear partial interference cancellation explanation about the soft sigmoid PIC detector. Derivation and computer simulations show that the proposed detector can reach the performance of the soft sigmoid PIC detector easily without the variance estimation of the residual noise at each stage or the sigmoid decision function which is not easily implemented in practice

Keywords

code division multiple access; computational complexity; decision theory; interference suppression; radiofrequency interference; signal detection; spread spectrum communication; DS-CDMA systems; MAI; multiple access interference; multistage detector; multiuser detection; partial PIC detector; partial parallel interference cancellation detector; residual noise; soft sigmoid decision detector; variance estimation; AWGN; Additive white noise; Amplitude estimation; Binary phase shift keying; Detectors; Gaussian noise; Interference cancellation; Multiple access interference; Noise cancellation; Noise level;

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.2001.957156

Filename

957156