Modeling and simulation of dynamic traffic control between satellite and terrestrial in case of national disasters by using Satellite Terrestrial Integrated mobile Communication System

摘要

To achieve a secured and safe society, the securing communication method at the emergency disaster is desired. In the background of this social tendency, the research and development of the mobile satellite communication system for the satellite terrestrial common terminal is begun. This system is called the satellite/terrestrial integrated mobile communication system (STICS). In this R&D, seamless handover from terrestrial to satellite is expected. To meet this requirement, we propose handover algorithm to define the function of satellite terrestrial common controller. It is based on 3GPP architecture. To confirm this architecture, dynamic control simulator is developed to control satellite and terrestrial channels. In this simulation 63% call blocking was reduced by using STICS satellite even though limited condition.