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Proceedings Paper

Simulation and development of a FSO system at an urban environment in Rio de Janeiro
Author(s): Alberto Huanachin; Marbey Mosso; Bruno Guedes; Abelardo Podcameni
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Paper Abstract

A procedure for the analysis, modeling, and a practical trial of a Free-Space Optics (FSO) system is presented. The procedure has been conducted in the urban area of Rio de Janeiro, in 2002. Firstly, the transmitter and receiver characteristics are considered. Next, three additional parameters are introduced: they are: the atmospheric loss, the geometric loss and the scintillation. In this last parameter, a few ways how scintillation might be expressed in dB and translated into a power balance equation, is presented. Other fixed parameters, dealing with additional losses, are subsequently inserted. The FSO system availability is exhibited, using airports visibility data, leading to a prediction of the systemic availability. Attention is then focused on the Bit Error Rate, BER, which relates with the Recommendation ITU-T G.826. Within this last Recommendation, it is possible to perform a FSO analysis with respect to the climatic variation. The experiment has encompassed some short periods in which this city presents a strong morning fog. It is finally shown that FSO is a competitive and reliable transmission technology, provided proper and correct use.

Paper Details

Date Published: 20 October 2004
PDF: 12 pages
Proc. SPIE 5550, Free-Space Laser Communications IV, (20 October 2004); doi: 10.1117/12.561394
Show Author Affiliations
Alberto Huanachin, Pontificia Univ. Catolica do Rio de Janeiro (Brazil)
Marbey Mosso, Pontificia Univ. Catolica do Rio de Janeiro (Brazil)
Bruno Guedes, Pontificia Univ. Catolica do Rio de Janeiro (Brazil)
Abelardo Podcameni, Pontificia Univ. Catolica do Rio de Janeiro (Brazil)

Published in SPIE Proceedings Vol. 5550:
Free-Space Laser Communications IV
Jennifer C. Ricklin; David G. Voelz, Editor(s)

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