GaliLEO A SIMULATION TOOL FOR TRAFFIC ON LEO SATELLITE CONSTELLATIONS PRESENTATION OF THE ARCHITECTURE

The aim of this work is to create a tool that can simulate the transmission of both connectionoriented and connection-less traffic over a constellation of LEO/MEO (Low Earth Orbit/ Medium Earth Orbit) satellites. We hope to provide a performance evaluation of various constellation access techniques and routing policies. The simulator, named GaliLEO, will be written in Java and will integrate results from another simulator (CONSIM from CSELT, I) to study the impact of faults in system performance. GaliLEO should eventually become the simulation tool for the Cost253 action, thus providing a common tool for all studies taking place in the action. At the time of writing, considerable interest is being shown in GaliLEO.