For over half a century, artificial satellites orbiting the Earth have provided an alternative method for accessing various services useful to the world community: from oldest television and telephone services to the most recent internet and positioning services, life without one or more of these facilities is nowadays unthinkable. A great advantage provided by this type of technology is the possibility of having much more extensive coverage compared to classic cellular networks or wired infrastructures. Satellite coverage is usually organized into small adjacent coverage areas called "Beams", which considered together cover vast geographical areas: the coverage of a Geostationary (GEO) satellite can usually extend over an entire continent.