My filed is free space optics i used wavelength 1550 nm i need the data attenuation in malaysia for rain and smoke for all condition light ,medium and heavy pls any one can help me?
I suggest you follow the publications of Dr. J.S Mandeep or Prof. S.I.S Hassan, here in researchgate, who have conducted quite some work on rainfall rate statistics and comparison against current models, and also cloud and fog attenuation.