Rain Attenuation Models for Mobile Satellite Communication in Sudan

Satellite communication can offer easy access means of communication at the tactical level. Reliable transmissions of video, voice, and data are critical parts of a successful communication sphere. Due to the rain attenuation, applications such as voice, video and data effects severely. This paper assesses the rain attenuation effects for satellite communications in Sudan. The assessment has done considering two steps. Firstly, the ITU rain attenuation model is derived and configured for the different values and for different frequency bands. Second, the simulation of a satellite link with Binary Phase Shift Keying (BPSK) modulation for data transmission and reception through fixed as well as the mobile channel has considered. Therefore, the rain effect is simulated using Gaussian distribution function, and lognormal distribution for multipath fading effect. Through the result analysis, the Bit Error Rate (BER) for both scenarios is assessed.