Performance of closed-loop transmit antenna diversity system with channel estimation errors and fading correlation

Author

Kim, Nam-Soo ; Lee, Ye Hoon

Author_Institution

Dept. of Comput. & Commun. Eng., Cheongju Univ., South Korea

fYear

2004

fDate

11-14 July 2004

Firstpage

464

Lastpage

468

Abstract

The effect of channel estimation errors and fading channel correlation on closed-loop transmit diversity (CTD) systems is investigated in frequency flat Rayleigh fading channels. A bit error rate expression for the CTD system is analytically derived as a function of the channel correlation coefficient, feedback delay, and fading index. Numerical results show that the performance degradation caused by the estimation errors is more severe than that caused by the fading correlation. It is interpreted that the performance of the CTD system is more sensitive to the beamforming error rather than to the fading correlation.

Keywords

Rayleigh channels; channel estimation; closed loop systems; correlation theory; diversity reception; error statistics; transmitting antennas; CTD; bit error rate expression; channel estimation errors; closed-loop transmit antenna diversity system; fading correlation; feedback delay; flat Rayleigh fading channels; Bit error rate; Channel estimation; Degradation; Delay; Fading; Feedback; Frequency diversity; Frequency estimation; Rayleigh channels; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 2004 IEEE 5th Workshop on

Print_ISBN

0-7803-8337-0

Type

conf

DOI

10.1109/SPAWC.2004.1439286

Filename

1439286