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Nowadays there is an increasing need of broadband communications anytime, anywhere for users requiring multimedia services with quality of service support. This paper deals with the integration of GEO satellite networks and terrestrial wireless networks. Our interest is for a DVB-RCS GEO system integrated with a WiFi terrestrial segment based on the IEEE 802.11b and e standards. Such a scenario is...
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...
The transition towards the 'All IP' environment was long ago foreseen, but the actual shift towards this goal did not happen until recently. This inevitable convergence is naturally coupled with a number of significant advantages, but also introduces some problems that were not present before. One of these, which is the focus of this paper, is the efficient transport of voice traffic over IP (VoIP)...
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