Effect of Environmental Parameters on the Performance of Optical Wireless Communications

Table 5

Results for 4T_X/4R_X FSO at different weather conditions for λ= 1550 nm.

Weather conditions	Range	Max Q Factor	Min BER
clear air; attenuation=0.2 db/km; visibility=23km	125	6.5	3.310-11
	0.12	8.1	2.210-16
	0.11	12.4	1.410-35
Haze; attenuation=2.8 db/km; visibility=2 km	15.5	6.2	2.510-10
	15	8.15	1.510-16
	14.5	10.6	1.1110-26
Rain; attenuation=6.5 db/km; visibility=1 km	7.6	6.4	8.410-11
	7.5	7.2	2.310-13
	7	13.06	2.0510-39
light fog; attenuation=8.5 db/km; visibility=0.8 km	6	6.8	3.310-12
	5.8	9.4	2.210-21
	5.6	12.7	1.610-37
Moderate fog attenuation=11.9 db/km visibility=0.6 km	4.5	6.7	6.0110-12
	4.3	10.5	4.610-26
	4	19.25	5.210-83
dust fog; attenuation=14.7 db/km visibility=0.5 km	3.7	7.7	4.0510-15
	3.5	13.08	1.610-39
	3.4	16.7	1.710-63
dense fog; attenuation=90 db/km visibility=0.1 km	0.765	6.4	8.410-11
	0.75	8.14	1.710-16
	0.74	9.5	6.210-22
heavy dust attenuation=132.8db/km visibility=0.07 km	0.542	6	8.410-10
	0.52	10.1	2.110-24
	0.5	15.7	8.410-56
heavy fog; attenuation=190.9 db/km visibility=0.05 km	0.39	6.11	4.3510-10
	0.38	8.6	3.310-18
	0.37	11.9	5.1110-33