Effect of Environmental Parameters on the Performance of Optical Wireless Communications

Table 4

Results for 2/2 FSO at different weather conditions for λ= 1550 nm.

Weather conditions	Range (km)	Max Q Factor	Min BER
clear air; attenuation=0.2db/km visibility=23km	115	6.2	2.410-10
	110	7.8	3.0610-15
	105	9.7	1.210-22
Haze; attenuation=2.8db/km; visibility=2 km	14.5	6.6	1.910-11
	14	8.7	1.910-18
	13.5	11. 3	6.410-30
Rain; attenuation=6.5db/km; visibility=1 km	7.2	6.4	5.710-11
	7	8.3	6.610-17
	6.5	14.8	2.710-50
light fog; attenuation=8.5 db/km; visibility=0.8 km	5.7	6.8	3.810-12
	5.5	9.4	2.310-21
	5	19.7	5.710-87
Moderate fog attenuation=11.9db/km visibility=0.6 km	4.3	6.5	3.510-11
	4	12.5	2.710-36
	3.8	18.7	7.610-79
dust fog; attenuation=14.7 db/km visibility=0.5 km	3.6	6.3	1.710-10
	3.5	8.3	5.910-17
	3.4	10.8	1.610-27
dense fog; attenuation=90 db/km visibility=0.1 km	0.735	6.4	7.610-11
	0.7	11.18	2.1110-29
	0.65	23.1	1.0210-118
heavy dust attenuation=132.8db/km visibility=0.07 km	0.52	6.3	1.810-10
	0.5	10.04	4.210-24
	0.48	15.6	2.610-55
heavy fog attenuation=190.9 db/km visibility=0.05 km	0.375	6.3	1.610-10
	0.37	7.45	3.810-14
	0.35	14.3	1.610-46