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The recent growth of peer-to-peer traffic and the popularity of streaming video is a cause for possible instability of the networks because most of these services run over UDP, without any mechanism for congestion control. Moreover, the adaptive features of peer-to-peer traffic may lead a misuse of the classical QoS rules legitimately applied to end-user applications. This paper proposes the usage...
In this paper, we address the problem of optimizing the delivery of multimedia services with different QoS requirements to mobile users. The dynamic behaviour of the mobile transmission resources makes it difficult to provide perceptually good quality streaming video. Filtering compressed video stream is one way to deal with this problem by providing adaptivity to mobile clients. It is a kind of media...
With the introduction of MBMS (multimedia broadcast/multicast services), new requirements are introduced in order to offer this service to all users. Due to the low UMTS resources there is a need to enhance the UMTS network. In this paper, an optimized point-to-point MBMS mode scheduling scheme using DCH/FACH (dedicated channel/forward access channel) and DSCH (downlink shared channel) channels is...
The deployment of high bit rate mobile cellular networks is enabling the delivery of new applications and services, most notably those that are video related - video live and on-demand streaming. While the nature of this applications and user expectations to the quality of service demand huge network resources these services are good multicast candidates since the same contents are to be transmitted...
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