Diversity investigation of satellite backbone network for BFWA systems

The Broadband Fixed Wireless Access (BFWA) networks are terrestrial systems operating at high carrier frequencies (above 20 GHz), therefore one of the most harmful circumstantial factors in these systems is the attenuation caused by precipitation, especially by rain. Employing site diversity is a well-known method to improve the signal to interference plus noise ratio conditions within the BFWA network. The backbone of a BFWA can be wired or wireless terrestrial, however the connection between base stations and the operator´s core network can be also established by high frequency satellite links. Applying a satellite backbone system and route diversity between the Earth-space links can compensate precipitation attenuation. In this paper the efficiency of the diversity scheme in a satellite backbone network for BFWA system will be presented.