A promising technology for peer-to-peer connections and urban area networks is represented by wireless communications through free space using optical carrier (Free Space Optics, FSO). This technology ensures high data rates, with relatively low error rates, low power consumption and inherent security. Nevertheless FSO links are quite sensitive to atmospheric condition. Fog droplets, but also raindrops and snowflakes, may introduce severe path attenuation which drastically reduces the channel availability. A parametric model to simulate droplets scattering effects over the FSO link in terms of extinction coefficient, albedo factor and asymmetry coefficient as function of the particle water content will be presented. Both single and multiple scattering effects will be shown. © 2012 IEEE.
Model analysis of hydrometeor scattering effects on free space near-infrared links / Mori, Saverio; Marzano, FRANK SILVIO; Frezza, Fabrizio; G. M., Tosi Beleffi; V., Carrozzo; A., Busacca; A., Ando. - (2012), pp. 1-3. (Intervento presentato al convegno 2012 International Workshop on Optical Wireless Communications, IWOW 2012 tenutosi a Pisa nel 22 October 2012 through 22 October 2012) [10.1109/iwow.2012.6349692].
Model analysis of hydrometeor scattering effects on free space near-infrared links
MORI, SAVERIO;MARZANO, FRANK SILVIO;FREZZA, Fabrizio;
2012
Abstract
A promising technology for peer-to-peer connections and urban area networks is represented by wireless communications through free space using optical carrier (Free Space Optics, FSO). This technology ensures high data rates, with relatively low error rates, low power consumption and inherent security. Nevertheless FSO links are quite sensitive to atmospheric condition. Fog droplets, but also raindrops and snowflakes, may introduce severe path attenuation which drastically reduces the channel availability. A parametric model to simulate droplets scattering effects over the FSO link in terms of extinction coefficient, albedo factor and asymmetry coefficient as function of the particle water content will be presented. Both single and multiple scattering effects will be shown. © 2012 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
