On the study of the FSO link performance under controlled turbulence and fog atmospheric conditions

Author

Rajbhandari, S. ; Ghassemlooy, Z. ; Perez, J. ; Le Minh, H. ; Ijaz, M. ; Leitgeb, E. ; Kandus, G. ; Kvicera, V.

Author_Institution

Northumbria Opt. Commun. Res. Group, Northumbria Univ., Newcastle upon Tyne, UK

fYear

2011

fDate

15-17 June 2011

Firstpage

223

Lastpage

226

Abstract

In this paper, the effect of turbulence and fog on the free space optical (FSO) communication systems for on-off-keying (OOK), pulse amplitude modulation (PAM) and subcarrier intensity modulation (SIM) based on binary phase shift keying (BPSK) is experimentally investigated. The experiment is carried out in a controlled laboratory environment where turbulence and fog could be generated in a dedicated FSO chamber. In comparison to 4-PAM signal, the BPSK and OOK-NRZ modulation signalling format are more robust against the fog and turbulence effects. In addition BPSK system is much less susceptible to the signal amplitude fluctuation due to turbulence compared to the other two modulation formats.

Keywords

amplitude shift keying; atmospheric turbulence; fog; intensity modulation; optical communication; optical links; phase shift keying; pulse amplitude modulation; telecommunication signalling; 4-PAM signal; BPSK modulation signalling format; FSO chamber; FSO link performance; OOK-NRZ modulation signalling format; PAM; SIM; binary phase shift keying; controlled turbulence effect; fog atmospheric condition; free space optical communication systems; nonreturn-to zero; on-off-keying; pulse amplitude modulation; signal amplitude fluctuation; subcarrier intensity modulation; Adaptive optics; Binary phase shift keying; Integrated optics; Optical attenuators; Optical fiber communication; Q factor;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ConTEL), Proceedings of the 2011 11th International Conference on

Conference_Location

Graz

Print_ISBN

978-1-61284-169-4

Electronic_ISBN

978-3-85125-161-6

Type

conf

Filename

5969936