QoSatAr: A Cross-Layer Architecture for E2E QoS Provisioning Over DVB-S2 Broadband Satellite Systems
This paper presents QoSatAr, a cross-layer architecture developed to provide end-to-end Quality of Service (QoS) guarantees for Internet Protocol (IP) traffic over the Digital Video Broadcasting-Second generation (DVB-S2) satellite systems. The architecture design is based on a cross-layer optimization between the physical layer and the network layer to provide QoS provisioning based on the bandwidth availability present in the DVB-S2 satellite channel. The authors' design is developed at the satellite-independent layers, being in compliance with the ETSI-BSM-QoS standards. The architecture is set up inside the gateway, it includes a Re-Queuing Mechanism (RQM) to enhance the good-put of the EF and AF traffic classes and an adaptive IP scheduler to guarantee the high-priority traffic classes taking into account the channel conditions affected by rain events.