Groupwise serial multiuser detectors for multirate DS-CDMA

Author

Wijting, Carl S. ; Ojanperä, Tero ; Juntti, Markku J. ; Kansanen, Kimmo ; Prasad, Ramjee

Author_Institution

Delft Univ. of Technol., Netherlands

Volume

1

fYear

1999

fDate

36342

Firstpage

836

Abstract

This paper presents the performance of groupwise successive interference cancellation (GSIC) in a DS-CDMA system with multiple data rates (multirate). The performance is evaluated both in AWGN and Rayleigh fading channels. In the GSIC scheme users with the same data rate are grouped and detected, using either a matched filter or a parallel interference cancellation (PIC) receiver, interference between the groups is cancelled in a successive order. The results show that in a multirate system the GSIC yields a better performance than the PIC receiver. Further a delay error of 0.1 T_c is found to be tolerable

Keywords

AWGN channels; Rayleigh channels; code division multiple access; interference suppression; land mobile radio; matched filters; radio receivers; radiofrequency interference; spread spectrum communication; AWGN channels; GSIC; PIC receiver; Rayleigh fading channels; delay error; groupwise serial multiuser detectors; interference; matched filter; multirate DS-CDMA; multirate system; parallel interference cancellation; performance; 3G mobile communication; AWGN; Delay; Detectors; Fading; Interference cancellation; Matched filters; Multiaccess communication; Multiuser detection; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.778323

Filename

778323