Frequency scaling of slant path rain attenuation for fade mitigation in satellite communication

Abstract

Fade mitigation techniques are widely used in mm wave satellite communication systems. Proposed work shows estimation and frequency scaling of rain induced attenuation which is useful in fade mitigation. Rain attenuation has been evaluated at downlink frequency and then scaled to uplink frequency, so that uplink power can be adjusted accordingly. IPSTAR beacon data at 20 GHz of two years has been used for this work. Proposed analysis is very useful for the study of uplink power control algorithms to counter rain induced attenuation.