Performance comparison of space-time spreading and space-time transmit diversity in cdma2000

Author

Wu, Gang ; Wang, Haifeng ; Chen, Ming ; Cheng, Shixin

Author_Institution

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

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

442

Abstract

Space-time spreading (STS) is considered as one of the transmit diversity schemes in the current cdma2000 standard. Space-time transmit diversity (STTD) has been proposed and specified in WCDMA standardization. In this paper, the performance of STS and STTD have been evaluated and compared in forward link CDMA2000 systems. The performance analysis and simulation results show that these two schemes have approximately the same performance on the frame error ratio in multipath fading channels even with imperfect channel estimation. But STS has more implementation complexity and higher peak to average ratio compared with STTD.

Keywords

Rayleigh channels; antenna arrays; antenna theory; cellular radio; code division multiple access; multipath channels; transmitting antennas; STTD; W-CDMA standardization; WCDMA; channel estimation; forward link cdma2000 systems; frame error ratio; implementation complexity; multipath fading channel; space-time spreading; space-time transmit diversity; Analytical models; Antennas and propagation; Fading; Mobile communication; Multiaccess communication; Performance analysis; Quadrature phase shift keying; Sociotechnical systems; Standardization; Transmitting antennas;

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.2001.956637

Filename

956637