Effect of Environmental Parameters on the Performance of Optical Wireless Communications

Table 2

Atmospheric attenuation at different weather conditions for λ= (1550-850) nm using Kruze model.

Weather conditions	Visibility (km)	Attenuation (db/km) At 1550nm	Attenuation (db/km) At 850nm
Clear air	23	0.2	0.42
Haze	2	2.8	5.3
Rain	1	6.5	11.3
Light fog or snow	0.8	8.5	14.4
Moderate fog or heavy snow	0.6	11.9	19.7
Dust-fog	0.5	14.7	23.9
Dense fog	0.1	90	130
Heavy-dust	0.07	132.8	188.2
Heavy-fog	0.05	190.9	266.5