Performance evaluation and analysis of space-time coding in unequalized multipath fading links

Author

Gong, Yi ; Letaief, Khaled

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China

Volume

48

Issue

11

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

1778

Lastpage

1782

Abstract

This paper investigates the use of space-time (ST) coding for high-speed data transmission, as well as studies the effect of time delay spread on such scheme over unequalized fading channels. Using a random variable decomposition technique, we present an analytical model and obtain an approximate bound of the pairwise-error probability for ST coded systems over multipath and time-dispersive fading channels. It is shown that the presence of multipath does not reduce the diversity gain provided by the original design criteria, which is adopted to construct specific ST codes in quasi-static flat fading, but the coding gain diminishes due to the effect of multipath fading.

Keywords

data communication; delays; dispersive channels; diversity reception; encoding; error statistics; fading channels; multipath channels; radio links; random processes; Monte Carlo simulations; analytical model; approximate analytical model; approximate bound; coding gain; diversity gain; high-speed data transmission; multipath fading channels; pairwise-error probability; performance analysis; performance evaluation; quasi-static flat fading; random variable decomposition; simulation results; space-time coding; time delay spread; time-dispersive fading channels; unequalized fading channels; unequalized multipath fading links; Analytical models; Data communication; Delay effects; Fading; Intersymbol interference; Performance analysis; Radiofrequency interference; Random variables; System performance; Wireless communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.886466

Filename

886466