Satellite QoS Architecture in the SATIP6 Project

This paper deals with QoS provision for broadband access via TCP/IP over DVB satellites. Namely, work carried out by the University of Rome “La Sapienza” in the IST project SATIP6 with specific reference to the traffic control and access control is presented and discussed. The traffic control part in the SATIP6 architecture aims at guaranteeing delay and bandwidth requirements to IP flows and users on the basis of the bandwidth allocated to DVB classes by means of the access control function. The access control part aims at requesting the proper amount of capacity to the satellite network on the basis of measures taken on the traffic offered to the satellite system. In particular, this paper discusses the two components of the satellite QoS architecture and how to coordinate their operation in a single efficient algorithm.