On the Calculation of Constrained Capacity and Outage Probability of Broadband Satellite Communication Links

Outage probability and outage ergodic constrained capacity are important performance metrics of broadband satellite communication networks operating above 10 GHz. The objective of this letter is to propose a simple method, using piecewise linear fitting, for the calculation of these figures of merit in rain fading channels. Rain fading affecting the signal amplitude is described by log-lognormal distribution. The results are focused on well-accepted DVB-S2 satellite communication system. Finally, a lower bound for the ergodic constrained capacity of log-lognormal channels is given. The numerical results highlight the accuracy of the proposed method.