Karimi, Kaivan Abrahim.

Rain attenuation is the most dominant cause of signal degradation in satellite links operating at Ka-band. A review of rain measurements and effects of rain attenuation on satellite links will be discussed and will be followed by the latest developments in prediction and modeling of rain attenuation. Then an adaptive rain fade countermeasure based on the effective utilization of the channel capacity will be presented. In order to determine the outage rates both in terms of channel capacity and bit error rate (BER), Manning's rain attenuation prediction model, based on the rain history of the transmitting and receiving stations, will be employed. Finally, a comprehensive statistical model for Land-Mobile Satellite Systems (LMSS) in the presence of rain attenuation will be proposed.