Application Layer Qos Support for Video Services

نویسندگان

  • Bruno Guedes
  • Teresa Vazão
  • Ricardo Pereira
چکیده

The ubiquity of IP technology is the starting-point to many current services, such as IPTV. Most of these services are supported in access network by xDSL networks (last mile), which are the service provider’s bottleneck. The main goal of this paper is to present a solution that adapts video contents to the xDSL networks. In order to provide clients with different video qualities according to their reception capabilities we propose a new QoS adaptation technique. In the proposed solution the media server sends streams of the same video content with different video qualities, being the quality level of the stream received by the client selected by the Media-aware Network Element (MANE), which delivers contents through the access network. Experimental results show that this technique enhances the quality of the user experience.

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تاریخ انتشار 2009