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Wireless optical links are being increasingly deployed in a variety of indoor and outdoor applications. While it is known that fog and clouds produce the highest attenuation values on optical waves travelling through the Earth's atmosphere, it is shown here that other particulates as rain and snow might have a non-negligible effect, depending on the local climatology and on the quality of service...
A well known disadvantage of free space optics (FSO) or optical wireless communication is its sensitivity on local weather conditions-primarily to fog and precipitation, resulting in substantial loss of optical signal power over the communication path. Results of a propagation study on a terrestrial free space optics (FSO) link at 950 nm and 850 nm on 79.8 m long path are presented. Given these wavelengths,...
Optical wireless technology is a well known technology that found renewed interest for its numerous applications in ground-space and terrestrial communication scenarios. A well known disadvantage of optical wireless communication (involving ground-link) is its sensitivity on local weather conditions - primarily to fog, snow and clouds. This results in substantial loss of optical signal power over...
The effect of snow on a FSO link is here addressed both theoretically and experimentally. Data collected during the snowfalls occurred in Milan, Italy, in the winter time of 2005 and 2006 are presented and discussed. It is shown that attenuation due to snow is not at all negligible because it could largely exceed the one caused by heavy rainstorms. Further, as in the case of rain events, the use of...
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