Outage prediction of BFWA services caused by rain attenuation

The percentage of the serviced area of terrestrial BFWA - fed by fiber network or satellite - is investigated for rainy and non-rainy cases. In this paper our results will show that transmitter power can be saved in most of the cases of raining because beside the wanted signal the interference will be higher attenuated by rain shower leading to SINR increasement compared to the non-rainy case. Conventional link budget planning methods ignore the time variance of SINR. Taking into account the phenomena that the wanted and interfering signals are jointly attenuated with the knowledge of temporal and spatial correlation of rain attenuation the link budget planning could be led to using the available transmitter power more environmentally sound applying lower transmit power level.