“…Optical wireless links are characterized by line-ofsight requirements, transceiver characteristics and weather conditions, like visibility, temperature, relative humidity and fog as modeled in [1]. The availability of an optical wireless link depends mainly on the distance between the optical transceivers and the atmospheric attenuation effects [4]. Link availability is expressed by the probability that atmospheric losses are less than the link margin ( [4]) which is generally captured in terms of meteorological visibility data.…”