Title :
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
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;
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
DOI :
10.1109/PIMRC.2001.965259
