A Scalable Framework for End-to-End QoS Assurance in IP-Oriented Terrestrial-GEO Satellite Networks

The exponential growth of the Internet, the heterogeneity of networks, and the need for QoS maintenance have urged researchers to develop ideas for managing network scalability and endto- end QoS assurance. In this article an IP IntServ architecture in the satellite access network is combined with a scalable IP DiffServ-like architecture in the terrestrial core network. The proposed architecture aims at guaranteeing fine-grained bandwidth control in the satellite access network and stateless scalability in the core network, by exploiting per-aggregate traffic flow control, typical of the Aggregate RSVP protocol, and stateless service assurance, typical of the SCORE approach.