Closed-form BER expression for FSO links with transmit laser selection over exponential atmospheric turbulence channels

Author

Castillo-Vazquez, B. ; Garcia-Zambrana, A. ; Castillo-Vazquez, C.

Author_Institution

Dept. of Commun. Eng., Univ. of Malaga, Malaga, Spain

Volume

45

Issue

23

fYear

2009

fDate

11/1/2009 12:00:00 AM

Firstpage

1185

Lastpage

1187

Abstract

An exact closed-form expression for the average bit error rate (BER) of multiple-input-single-output free-space optical (FSO) communication systems with intensity modulation and direct detection using selection transmit diversity over strong atmospheric turbulence channels is derived. Assuming channel side information (CSI) at the transmitter and receiver, the transmit diversity technique based on the selection of the optical path with a greater value of scintillation has shown to be able to extract full diversity, outperforming other alternatives in which CSI at the transmitter is not considered.

Keywords

atmospheric turbulence; diversity reception; error statistics; optical links; optical modulation; FSO links; atmospheric turbulence channels; average bit error rate; channel side information; closed-form BER expression; intensity modulation; multiple-input-single-output free-space optical communication systems; receiver; scintillation; selection transmit diversity technique; transmitter;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2009.1309

Filename

5325131