GEO Satellites and Their Applications: Service Integration over DVB Systems

The constant growth of GEO satellites as a medium of communication has underlined the question of service integration over such a system. Digital television over satellite experiences a real success, but paradoxically the Internet access via satellite seems an economic failure, preventing further service integration. In this paper, we propose a short overview of the current use of satellite for the Internet, and its drawbacks. Some perspectives are presented, underlining the need of relevant services. Then, three services and their integration on a satellite system are studied, concluding to the necessity of a relevant architecture, a system which makes the transition between present system and the next generation of satellite and which can thus propose a longterm protocol architecture. This paper presents a solution: a hybrid (transparent and regenerative) system. Eventually we will study the integration of different services over such a system, leading to a global architecture.