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The paper studies a protocol and a control architecture aimed at implementing bandwidth and call admission optimization over a DVB Return Channel Satellite Terminal (RCST) under Quality of Service (QoS) contraints. The approach can be applied in all cases where traffic flows, coming from a terrestrial portion of the network, are merged together within a single DVB flow, which is then forwarded over...
To provide live streaming service to mobile users, traditionally each user pulls content from a server over his cellular network. In order to overcome the scalability problem of last-hop bandwidth bottleneck, mobile peer-to-peer (P2P) streaming can be used where mobile devices relay their stream received in a multi-hop manner by means of a secondary channel (such as Wi-Fi or bluetooth). We investigate...
The evolution of wireless network standards, e.g., GSM/GPRS, UMTS, WiFi, WiMAX, and end-user devices has paved the way towards Next Generation Mobile Networks (NGMN), where users are always connected through multiple radio access networks. NGMN technologies target to improve the user experience especially for mobile data and multimedia services, which are in line with user expectations evident from,...
Heterogeneous QoS video broadcast over wireless network is a challenging problem, where the demand for better video quality needs to be reconciled with different display size, channel condition and QoS requirements. In this paper, we present a framework for broadcasting scalable video to heterogeneous mobile users with diverse display devices and different channel conditions, which includes joint...
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