60-GHz short-range terrestrial rainfall attenuation compared with K-band long-distance satellite link

In order to clarify rainfall attenuation of millimeter-wave terrestrial and satellite links, rainfall attenuation of a 60-GHz short-range terrestrial link was measured and compared with those of K-band long-distance satellite links. Cumulative probability distribution of 60-GHz rainfall attenuations was slightly larger than that estimated from Morita and Higuti´s prediction method. Availability of 60GHz terrestrial link was also evaluated by duration time and compared with K-band satellite ones. 60-GHz availability was nearly constant with the duration time although K-band satellite availability was changed by the duration time.