On the robustness of space-time coding for spatially and temporally correlated wireless channels

Author

Younkins, Larry T. ; Su, Weifeng ; Liu, K. J Ray

Author_Institution

Lab. of Appl. Phys., Johns Hopkins Univ., Laurel, MD, USA

Volume

1

fYear

2004

fDate

21-25 March 2004

Firstpage

587

Abstract

The robustness of space-time coding techniques for wireless channels that exhibit both temporal and spatial correlation is investigated. A general space-time covariance model is developed and employed to evaluate the exact pairwise error probability for several space-time codes. A significant degradation in the performance of space-time coding techniques is observed for cases where the scatterers are located in close proximity to the mobile and the spacing between transmit antennas is a fraction of a wavelength. The conditions for which the commonly used assumption of independent transmission paths is valid are investigated as a function of the scattering radius and the spacing of the transmit and receive antennas.

Keywords

Rayleigh channels; antenna arrays; correlation methods; error statistics; mobile radio; receiving antennas; space-time codes; transmitting antennas; independent transmission paths; pairwise error probability; receive antennas; scattering radius; space-time coding; spatial correlation; temporal correlation; transmit antennas; wireless channels; Base stations; Diversity reception; Doppler effect; Educational institutions; Mobile antennas; Rayleigh channels; Rayleigh scattering; Receiving antennas; Robustness; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8344-3

Type

conf

DOI

10.1109/WCNC.2004.1311612

Filename

1311612