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EVENT DETECTION , CONTROL AND PERFORMANCE MODELLING

This paper gives an overview of some of the salient research work in event detection, fade control and performance modelling. The main purpose of Fade Mitigation Techniques (FMTs) is to counteract the effects of tropospheric attenuation on the Quality of Service (QoS) of high frequency satellite/terrestrial communications. This is achieved by controlling some of the communication systems parameters (e.g. coding or symbol rate, transmitted power) based on measured/estimated signal levels,[1][2]. At frequency above 10 GHz, rain/cloud attenuation is the major effect to consider. Amplitude tropospheric scintillations is also not negligible. Finally, the cross-polarization property of rain may need consideration for satellite with dual linear polarizations.