The countries of the world are using various
communication services in all areas of society on based
satellite networks. The International Telecommunication
Union has allocated two kind of satellite positions in
Geo-Synchronous Orbit (GSO) space to Mongolia that
are 113.6E longitude for Fixed Satellite Service-(FSS)
and 74E longitude for Broadband Satellite Service-
(BSS). Therefore, Mongolia is planning to launch its
national satellite in 2030.
Thus, we are studying many kind of science
research including estimate satellite geometry
parameters, rain attenuation, cloud attenuation and
satellite network architecture on based national satellite
that will be deployed to space segment.
The purpose of this research work is to predict the
estimation of rain and cloud attenuation based on the
national satellite link that will be launched at space
segment 113.6 E from Mongolia. First, it is defined
requirements of propagation effects of satellite
communication and analyze some related research work
and literature. Then, it is calculated geometry
parameters of geostationary satellite, the look angles of
ground station antenna by using mathematical model by
each regions of Mongolia. It is important to calculation
rain and cloud attenuation. After that, to estimated
calculation of rain and cloud attenuation by using ITU-R
mathematical model by each region for Mongolia.
Finally, we analyzed comparative study of calculated
result of rain and cloud attenuation to show some result.
Keywords : Geometry parameter, rain attenuation, cloud attenuation, ITU-R model, Satellite frequency