International Association of Scientific Innovation and Research (IASIR)
In this paper, the authors focus on optical wireless communications link under snow effect. The snow effect has presented the wet and dry attenuation effect. It is taken into account the study of the receiver signal power, link margin, data rate and the signal-to-noise ratio. The wavelength 10600nm has more stability and better than the wavelength 630nm. On the other hand the wavelength 630nm suffers more attenuation from the wavelength 10600nm. The dry snow has more attenuation comparing with the wet snow.