Prediction of fading phenomena for link budget performance in land satellite communication links

In this work, we create a unified model, which combines the pure statistical model, based on Markov stochastic process, and the physical-statistical model, based on statistical description of built-up terrain and theoretical description of physical shadowing effects caused by buildings' overlay profile. Using such a combined model, we perform a theoretical prediction of outage probability of fading phenomena for land-satellite link budget design for mega-cell network performance. Results of theoretical predictions are compared with data obtained by the referred models and with precise experimental data, for which these models give best fit and correctly explain main propagation phenomena occur within the land-satellite links. A new simulation tool is constructed to predict link budget in communication links for different satellite constellation schemes, for different satellite networks, different satellite elevation angles and operational frequencies.