Efficient Decoding of RSCC over Ka-band Satellite Channel in Severe Weather Conditions

摘要

Communication systems performance over the Ka-band satellite channel is sensitive to the severity of weather conditions, particularly in the event of rainfall, so the use of robust channel coding with superior results is a crucial way to mitigate the effect of rainfall. As satellites are known to have power limitations, it will be efficient to use such strategies but with a decrease in complexity. RSCC Codes are standard forward error correction strategies for space communication systems that can fix errors and endure rainfall but with extra processing time and power consumption for the decoder. In this paper, we are introducing an overview of the rain fade impact throughout Ka-band satellite communication and developing a model of the rainfall fade channel. Besides, we suggest a reduced complexity Viterbi algorithm built upon a modified adaptive Viterbi algorithm. The current work achieves similar error performance as the conventional RSCC and significantly reduces computing loads and memory demands.