Comparing the rain effects on hybrid network using optical wireless and GHz links

Author

Nadeem, F. ; Leitgeb, E. ; Koudelka, O. ; Javornic, T. ; Kandus, G.

Author_Institution

Inst. of Commun. Networks & Satellite Commun., TUG Graz, Graz

fYear

2008

fDate

18-19 Oct. 2008

Firstpage

156

Lastpage

161

Abstract

Optical wireless link provides high bandwidth solution to the last mile access bottleneck. However, an appreciable high availability of the link is the basic requirement of any communication application. Free space optics (FSO) links are highly weather dependent that reduces the link availability. Hybrid networks consisting of Free Space Optics (FSO) link and back up link in the GHz frequency range renders high availability besides providing comparable data rate. The back up link should be nearly immune to weather attenuation for achieving carrier class availability. Among all the attenuation factors for GHz back up link, rain is the most significant. In this paper effects of rain on FSO and GHz frequency range links are studied and some measurement results are presented. This analysis can help in selection of frequencies with least rain attenuation as a back up link.

Keywords

optical links; rain; GHz frequency range links; free space optics link; hybrid networks; last mile access bottleneck; link availability reduction; optical wireless link; weather dependent; Atmosphere; Attenuation; Availability; Bandwidth; Frequency; Optical attenuators; Optical fiber networks; Optical refraction; Optical scattering; Rain; attenuation; free space optics (FSO); hybrid network; rain; simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies, 2008. ICET 2008. 4th International Conference on

Conference_Location

Rawalpindi

Print_ISBN

978-1-4244-2210-4

Electronic_ISBN

978-1-4244-2211-1

Type

conf

DOI

10.1109/ICET.2008.4777492

Filename

4777492