Space-time transmit diversity with multiple access interference suppression for downlink WCDMA systems

Author

Wu, Gang ; Wang, Haifeng ; Cheng, Shixin

Author_Institution

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

Volume

2

fYear

2001

fDate

Sep/Oct 2001

Abstract

The effects of fading channels and multiple access interference limit the performance of downlink WCDMA systems. In this paper, a linear minimum mean-square error multiuser receiver with space-time transmit diversity is proposed for downlink WCDMA systems. The fading effect and multiple access interference can be jointly mitigated by the proposed scheme. The performance analysis under Gaussian approximation has also been carried out. Simulation results show that substantial performance gain can be achieved compared with conventional algorithms

Keywords

cellular radio; code division multiple access; diversity reception; fading channels; interference suppression; least mean squares methods; radio links; BER performance; Gaussian approximation; MAI suppression; MMSE; WCDMA systems; downlink; fading channels; interference suppression; linear minimum mean-square error multiuser receiver; multiple access interference; space-time transmit diversity; Diversity reception; Downlink; Fading; Multiaccess communication; Multiple access interference; Multiuser detection; Performance analysis; Receiving antennas; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-7244-1

Type

conf

DOI

10.1109/PIMRC.2001.965259

Filename

965259