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This chapter highlights the components and fundamental concepts of bi‐directional satellite systems. It examines the details of the digital video broadcast (DVB)‐S and DVB‐return channel over satellite (RCS) standards which define the mechanisms on physical, data link and network level. The chapter explains the difficulties of integrating satellite access networks into NGNs by focusing on the interactions...
The internet protocol (IP) multimedia subsystem (IMS) architecture, initially developed by the third generation partnership project (3 GPP) for universal mobile telecommunications system (UMTS) networks, offers an end‐to‐end quality of service (QoS) architecture which focuses on the access network part. This chapter looks at present difficulties and opportunities to integrate satellite systems into...
In this chapter, the standards and studies regarding quality of service (QoS) are presented according to the main two approaches corresponding to the two different visions of the implementation of Information Technology (IT) networks: the internet engineering task force (IETF) approach and the ITU‐next‐generation network (NGN) approach. IETF offers a set of standards facilitating the implementation...
Research in the field of green-networking is raising more and more interest, in particular driven by energy saving purposes. The global Internet and its thousands of equipments consume an enormous energy amount, have an impact on global warming. In addition, nobody has a precise idea about what the Internet - or at least one of its AS (Autonomous System) - consumes. It is obvious designing new routing...
Transport protocols have been developed at first for terrestrial networks, but they are also used on communication satellite networks which have specific characteristics such as low bandwidth, QoS architecture and large latency. TCP and SCTP have been intensively studied in several circumstances, recommendations have been provided and results obtained. We are going to use the research done in order...
The major issue in distributed multimedia simulation is how to specify and implement synchronization scheme satisfying the QoS applications requirements. This paper suggests the use of a powerful synchronization scheme based on HTSPN between different flows issued from distributed multimedia systems to fulfill these requirements. Such an interpreted model permits powerful analysis techniques for validating...
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