FFT-speed and windowed multiuser detector for UTRA-FDD high rate data mode

Author

Machauer, R. ; Jondral, F.

Author_Institution

Inst. fur Nachrichtentechnik, Karlsruhe Univ., Germany

Volume

3

fYear

2002

fDate

2002

Firstpage

712

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); time division duplex (TDD). A new approach based on the zero-forcing multiuser detector (ZF-MUD) is investigated for the high rate data mode in the UTRA-FDD uplink. This approach is compared to the FFT speed ZF-MUD (see Machauer, R. et al., Proc. IEEE 54th Vehicular Technology Conf., p. 502-5, 2001) which was originally introduced by M. Vollmer et al. (see Proc. Int. Conf. on Telecom., ICT, 1999) for use in UTRA-TDD. The multiple access interference (MAI) and intersymbol interference (ISI) reduction of these multiuser detectors leads to a high BER gain compared to the RAKE receiver. The computational complexity is reduced by taking advantage of the UTRA-FDD structure. Both algorithms can easily be adapted to parallel computation.

Keywords

3G mobile communication; computational complexity; data communication; error statistics; fast Fourier transforms; frequency division multiplexing; interference suppression; intersymbol interference; mobile radio; multiuser detection; radio access networks; radio receivers; BER; FFT-speed; IMT-2000; ISI; MAI; RAKE receiver; TDD; UTRA-FDD; UTRA-FDD high rate data mode; ZF-MUD; computational complexity; frequency division duplex; interference reduction; intersymbol interference; multiple access interference; time division duplex; universal terrestrial radio access; windowed multiuser detector; zero-forcing multiuser detector; Bit error rate; Communication standards; Detectors; Frequency conversion; Intersymbol interference; Mobile communication; Multiple access interference; Proposals; Telecommunications; Vehicular and wireless technologies;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on

Print_ISBN

0-7803-7627-7

Type

conf

DOI

10.1109/ISSSTA.2002.1049352

Filename

1049352