FFT speed multiuser detection for high rate data mode in UTRA-FDD

Author

Machauer, Ralf ; Iurascu, Matei ; Jondral, Frieclrich

Author_Institution

Inst. fur Nachrichtentechnik, Karlsruhe Univ., Germany

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

502

Abstract

The family of international standards for mobile communications IMT-2000 includes amongst others the Universal Terrestrial Radio Access (UTRA) proposal, which consists of two modes: frequency division duplex (FDD) and time division duplex (TDD). Both are in principle wideband CDMA (W-CDMA) systems. Conventional detectors like the RAKE receiver do not decrease the multiple access interference (MAI). For a further improvement of system capacity multiuser detectors (MUD) should be applied. But the computational effort for such algorithms is high. In this paper a new approach based on linear MUD with FFT speed (Vollmer et al. 1999) is investigated for the high rate data transfer mode in UTRA-FDD.

Keywords

broadband networks; code division multiple access; fast Fourier transforms; frequency division multiplexing; mobile radio; multiuser channels; radio access networks; radio receivers; signal detection; FFT speed multiuser detection; IMT-2000; MUD; UTRA-FDD; Universal Terrestrial Radio Access; W-CDMA; frequency division duplex; high rate data mode; multiuser detectors; system capacity; time division duplex; wideband CDMA; Communication standards; Detectors; Fading; Frequency conversion; Mobile communication; Multiaccess communication; Multiple access interference; Multiuser detection; Proposals; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

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

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956651

Filename

956651