Software tool for teletraffic analysis in non-geostationary satellite mobile communication

This paper deals with the development of a software tool for teletraffic analysis in a satellite mobile communication system. The software package was developed using MATLAB to simulate the mobile satellite system with a user friendly graphical user interface (GUI) based on groups of menus to guide the user. Thus, the user can modify the satellite orbital and traffic generation parameters. The software was developed to analyse the teletraffic performance of a non-geostationary satellite (non-GEO) mobile communication system, particularly a low Earth orbit (LEO) satellite system such as the Iridium system. The simulation results are expressed in term of new call blocking probability (P/sub nb/) and handover failure probability (P/sub hf/). The channel assignments involve the satellite main beam and spot beams based on two criteria; the elevation angle and the mobile terminal location knowledge.