Quality of Experience management framework for real-time multimedia applications
International Journal of Internet Protocol Technology
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Multimedia applications have become one of the major traffic to be transported through networks. These applications require high bandwidth and stringent Quality of Service (QoS). The end video quality is determined not only by the network QoS but also by the encoded video quality. We consider video quality from these two aspects and propose to transport spatial scalable encoded videos with different dropping priorities over DiffServ (Differentiated Service). Performance analysis and simulation results show that this can provision QoS guarantees. The dropping policy we propose at the egress router can reduce the traffic load as well as the risk of congestion in other domains.