Performance of PPM on terrestrial FSO links with turbulence and pointing errors

Author

Gappmair, Wilfried ; Hranilovic, Steve ; Leitgeb, Erich

Author_Institution

Inst. of Commun. Networks & Satellite Commun., Graz Univ. of Technol., Graz, Austria

Volume

14

Issue

5

fYear

2010

fDate

5/1/2010 12:00:00 AM

Firstpage

468

Lastpage

470

Abstract

In recent work, the error performance of on-off keying has been investigated for free-space optical (FSO) links impaired by both turbulence and pointing loss. In the current letter, the analytical framework is extended to M-ary pulse-position modulation (PPM), providing exact results for M = 2. Since the approach is not directly applicable to PPM signals with M > 2, a closed-form approximation of the average symbol error probability is derived for this case, which is shown via simulation to be tight over a wide SNR range of interest.

Keywords

error statistics; optical links; pulse position modulation; terrestrial atmosphere; turbulence; M-ary pulse-position modulation; closed-form approximation; free-space optical links; pointing loss; symbol error probability; terrestrial FSO links; turbulence Errors; AWGN; Apertures; Bandwidth; Error probability; Fading; Optical modulation; Optical transmitters; Performance loss; Pulse modulation; Radio frequency; Terrestrial FSO communications, pulse-position modulation, turbulent atmosphere, pointing loss;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.05.100202

Filename

5456068