Space-time coding and Kalman filtering for time-selective fading channels

Author

Liu, Zhiqiang ; Ma, Xiaoli ; Giannakis, Georgios B.

Author_Institution

Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

50

Issue

2

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

183

Lastpage

186

Abstract

This paper proposes a novel decoding scheme for Alamouti´s (see IEEE J. Select. Areas Commun., vol.16, p.1451-1458, 1998) space-time (ST) coded transmissions over time-selective fading channels that arise due to Doppler shifts and carrier frequency offsets. Modeling the time-selective channels as random processes, we employ Kalman filtering for channel tracking in order to enable ST decoding with diversity gains. Computer simulations confirm that the proposed scheme exhibits robustness to time-selectivity with a few training symbols

Keywords

Doppler shift; Kalman filters; autoregressive processes; decoding; diversity reception; encoding; fading channels; filtering theory; random processes; tracking filters; AR processes; Doppler shifts; Kalman filtering; carrier frequency offsets; channel tracking; computer simulations; decoding; diversity gains; joint iterative channel tracking; random processes; space-time coded transmissions; space-time coding; symbol recovery; time-selective fading channels; training symbols; Computer simulation; Decoding; Diversity methods; Doppler shift; Fading; Filtering; Frequency; Kalman filters; Random processes; Robustness;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.983312

Filename

983312