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At present, the performance of multimedia technology used for processing speech and images and for mobile telecommunications is often degraded due to equipment limitations. For example, noise reduces both signal strength and quality, while channel noise leads to significant signal distortion. Hence, new techniques to deal with noise processing are an inherent part of efforts to develop multimedia...
IP multicasting is an efficient and scalable way to deliver high quality audio and video streams for group communication. However, widespread deployment of IP multicast is unlikely in near future and it requires substantial infrastructure modifications. For rapid deployment of multicast application, Application Layer Multicast (ALM) is an alternate choice to circumvent this situation, as it supports...
E-government processes are dedicated to the improvement of the efficiency, inexpensiveness and accessibility of public administration services: dematerialization activities, introduced to manage bureaucratic digital documents in a proper way, are among the main tasks of the e-government works. In this paper we present a novel RDF model of digital documents for improving the dematerialization effectiveness,...
Spatial and temporal variations in network bandwidth constraints constitute serious challenges to the multicast distribution of real-time video content. We present a video multicast algorithm that combines multi-layered video encoding with feedback-based source adaptation in order to address varying bandwidth constraints in a multicast tree. The proposed algorithm uses a novel multicast flow control...
Recently many countries have kept studying on the methods of constructing ultra speed networks. Task Force team for IEEE 802.3ah has accomplished the standardization of EPON which is the next generation subscriber access network. EPON doesn't still have the bandwidth wide enough to support the new service which demands high bandwidth. Therefore 10 G EPON is the next generation subscriber access network...
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