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Grid computing aims at offering standardized access to heterogeneous and distributed resources for scientific communities. In order to ensure certain quality of service requirements, the interconnecting networks have also be considered as Grid resources and must be taken into account for the co-scheduling process. However, most current systems do not support co-allocation of heterogeneous network...
Broadband communication via satellite systems finds applications in several contexts where other technologies are not available, or economically not convenient. Examples are remote (or disaster struck) areas and ships. The higher costs and lesser capacity of satellite systems compared to broadband terrestrial access, impose to improve flexibility in bandwidth management and dynamic allocation, especially...
Bandwidth in Satellite systems is a resource typically scarce and expensive. To increase efficiency and contain costs of satellite communications, bandwidth on demand (BoD) mechanisms are often employed, able to make shared resource utilization efficient. Adopting the proper Quality of Service (QoS) approach is of paramount importance to allow the optimal response and guarantee target performance...
We discuss in this paper basic requirements of an RCST gateway supporting VoIP traffic without strict QoS provisioning. Besides easing the system design, a QoS management not based on reservation is suitable to accomplish changes in traffic scenarios and to support new applications. The main elements of this architecture are illustrated throughout the paper following a layered structure. A preliminary...
Full integration of satellite technology in future terrestrial infrastructures requires support for high-quality broadband bi-directional communications. Research efforts in the field of satellite communications are currently oriented in the study of QoS-aware solutions for DVB–S and DVB–RCS which allow seamless deployment in the Internet. In this paper, the QoS architecture of the SATIP6 project,...
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