Effect of Environmental Parameters on the Performance of Optical Wireless Communications

Table 8

Results for 4/4 FSO at different weather conditions for λ= 850 nm.

Weather conditions	Range (km)	Max Q Factor	Min BER
Clear Air; Attenuation=0.42 db/Km; Visibility=23km	96	6.4	8.910-11
	95	6.9	1.910-12
	90	10.4	1.210-25
Haze; Attenuation=5.3 db/Km; Visibility=2 Km	11.1	6.6	2.210-11
	10.5	11.7	7.610-32
	10	18.15	4.610-74
Rain; Attenuation=11.3 db/Km; Visibility=1 Km	5.7	6.8	6.210-12
	5.6	8.3	410-17
	5.5	10.15	1.310-24
Light Fog; Attenuation=14.4 db/Km; Visibility=0.8 Km	4.6	6.77	5.510-12
	4.5	8.8	5. 810-19
	4.4	11.3	5.210-30
Moderate Fog; Attenuation=19.7 db/Km; Visibility=0.6 Km	3.5	6.4	810-11
	3.4	9.11	3.410-20
	3.3	12.7	1.110-37
Dust Fog; Attenuation=23.9 db/Km; Visibility=0.5 Km	2.9	7.8	2.310-15
	2.8	11.8	9.910-33
	2.7	17.5	8.610-69
Dense Fog; Attenuation=130db/Km; Visibility=0.1 Km	0.642	6.06	6.1610-10
	0.63	8	4.710-16
	0.62	10.02	5.1410-24
Heavy Dust; Attenuation=188.2db/Km; Visibility=0.07 Km	0.455	6.6	1.310-11
	0.45	7.9	1.610-15
	0.44	10.8	1.0410-27
Heavy Fog; Attenuation=266.5 db/Km; Visibility=0.05 Km	0.332	6.2	2.410-10
	0.32	10.77	1.810-27
	0.315	13.4	3.710-41