Abstract

The rapid development in communication systems has forced system designer to explore higher and higher frequencies. Rain is a dominant source of attenuation at higher frequencies in tropical and subtropical regions. The knowledge of rain fade is essential in order to optimize system capacity and meet quality and reliability. This paper has predicted rain fades in a subtropical country Bangladesh. The rain intensity data are derived from forty years measured annual rainfall data. The converted rain intensity data is used to estimate rain fade for earth-space link at C, Ku and Ka-bands. The rain fade is also estimated using ITU-R recommended rain intensity and compared with those predicted based on converted data.

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