Enhancing Rain Fade Mitigation through Site Diversity Techniques in the Southern Tropical Region of India

Abstract

In the pursuit of establishing a reliable microwave link connecting the Earth to satellites, especially in tropical regions and specific frequency bands, the persistent challenges posed by multipath propagation often give rise to fading phenomena. Fading, in this context, refers to the fluctuations in signal attenuation caused by various factors, including temporal variations, geographic positioning, and radio frequencies. As radio waves travel through the Earth's atmosphere, they encounter attenuation due to the presence of atmospheric constituents such as water vapor, raindrops, and ice particles. These elements absorb and scatter the radio waves, leading to the degradation of microwave link performance and a potential loss of signal strength. To address these issues, the Site Diversity Technique emerges as a promising solution among various Fade Mitigation Techniques.