Simulation and measurement of the satellite to indoor propagation channel at L- and S-band

The satellite to indoor propagation channel in L- and S-band is becoming of significant importance because future satellite broadcast and navigation systems (as e.g. S-DMB and Galileo) are aiming at optimum performance in all kind of environments, i.e. even in indoor scenarios. In the framework of the EU FP6 project MAESTRO, Fraunhofer IIS has carried out measurements of the satellite to indoor coverage for the geostationary Worldspace-Afristar satellite for different types of buildings in Athens and Erlangen. The satellite to indoor propagation channel depends on several parameters as building layout and materials. Wave propagation models are mandatory for analysing the various influences in detail. For the accurate simulation a ray-optical model which considers 3D building vector data has been implemented by AWE Communications.