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Network virtualization is a promising solution that can offer more flexibility and prevent Internet ossification without requiring extensive network redesign. Using virtualization multiple heterogeneous virtual network (VN) architectures can cohabit on a shared physical network substrate. Virtualization can be used to run multiple different applications (e.g., operating systems, servers, networking...
Network virtualization is an important technique for designing the future Internet architecture. Virtualization can help diversify the Internet by supporting multiple virtual network services and architectures on a shared substrate. Making efficient use of the underlying substrate network resources requires effective algorithms for virtual network embedding (VNE) that maps each virtual network (VN)...
Video transmission over Internet can greatly benefit from adapting video content to diffserv network parameters, to better support the application requirements. In this paper, a novel content-aware packet priority ordering and marking scheme is presented for streaming H.264 coded video over differentiated services enabled networks. The scheme takes advantage of flexible macroblock ordering (FMO) coding...
In this paper, a novel GOP level unequal loss protection (G-ULP) scheme is proposed for robust H.264-coded video streaming over packet loss networks. This scheme use frame error propagation index (FEPI) to characterize video quality degradation caused by error propagation in different frames in a GOP when suffer from packet loss. A fast FEPI calculation method in compression domain is also proposed...
novel approach for filtering spoofed IP packets, called Spoofing Prevention based on Trustworthy Coordination Model, is proposed. In the approach a unique temporal signature is associated with each ordered pair of source destination trusted domains, in which members trust in each others. The source address space, which is shared among routers residing in the trusted domain, is fused to be delivered...
Our work is motivated by the desire to build an evolvable architecture of Internet routers in which extremely high line-rates and IP-lookup rates are supported simply. In this paper, we consider building a packet-switch net from multi-stage, lower speed components called forwarding and switching node (FSN) performing IP-lookups and switching independently. In particular, we propose a pipelined and...
Real-time video streaming over the Internet often suffers from a kind of congestion on the bottleneck links caused by the video stream itself, a phenomenon so called self congestion. The motion compensation based video coding algorithms make video streams of variable bit-rate nature, which cause burst traffic, extra transmission delay, and even queue overflow of the bottleneck link and video data...
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