Video-an-demand systems with cooperative clients in multicast environment
IEEE Transactions on Circuits and Systems for Video Technology
A cross-layer design framework for robust IPTV services over IEEE 802.16 networks
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
An efficient patch transmission scheme for p2p video streaming
IMSA '07 Proceedings of the Eleventh IASTED International Conference on Internet and Multimedia Systems and Applications
Review: A survey of schemes for Internet-based video delivery
Journal of Network and Computer Applications
Proceedings of the 6th ACM workshop on Wireless multimedia networking and computing
Balanced dynamic buffering for scalable video-on-demand streaming on peer-to-peer networks
Multimedia Tools and Applications
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In this paper, we propose a Loopback approach in a two-level streaming architecture to exploit collaborative client/proxy buffers for improving the quality and efficiency of large-scale streaming applications. At the upper level we use a content delivery network (CDN) to deliver video from a central server to proxy servers. At the lower level a proxy server delivers video with the help of collaborative client caches. In particular, a proxy server and its clients in a local domain cache different portions of a video and form delivery loops. In each loop, a single video stream originates at the proxy, passes through a number of clients, and finally is passed back to the proxy. As a result, with limited bandwidth and storage space contributed by collaborative clients, we are able to significantly reduce the required network bandwidth, I/O bandwidth, and cache space of a proxy. Furthermore, we develop a local repair scheme to address the client failure issue for enhancing service quality and eliminating most required repairing load at the central server. For popular videos, our local repair scheme is able to handle most of single-client failures without service disruption and retransmissions from the central server. Our analysis and simulations have shown the effectiveness of the proposed scheme.