Performance degradation of a transmit diversity scheme due to fading

Author

Zheng, Tao ; Leung, Cyril

Author_Institution

Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada

fYear

2005

fDate

24-26 Aug. 2005

Firstpage

498

Lastpage

501

Abstract

In this paper, the error performance of the Alamouti simple transmit diversity (STD) scheme in the presence of spatially correlated fading with time-selectivity or channel estimation error is studied. Exact expressions for the conditional bit error rates and simple approximate expressions for the average bit error rates over correlated Rayleigh fading channels are obtained. It is shown that STD performance generally degrades with increase in channel estimation error, decrease in temporal correlation and increase in spatial correlation.

Keywords

Rayleigh channels; channel estimation; diversity reception; error statistics; Alamouti simple transmit diversity scheme; channel estimation error; conditional bit error rates; correlated Rayleigh fading channels; performance degradation; spatially correlated fading channel; temporal correlation; time-selectivity channel; Bit error rate; Channel estimation; Computer errors; Degradation; Detectors; Fading; Maximum likelihood detection; Maximum likelihood estimation; Rayleigh channels; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and signal Processing, 2005. PACRIM. 2005 IEEE Pacific Rim Conference on

Print_ISBN

0-7803-9195-0

Type

conf

DOI

10.1109/PACRIM.2005.1517335

Filename

1517335