IEEE/ACM Transactions on Networking (TON)
Interactive video streaming with proxy servers
Information Sciences—Informatics and Computer Science: An International Journal - Special issue: Interactive virtual environments and distance education
Adaptive Streaming of Layer-Encoded Multimedia Presentations
Journal of VLSI Signal Processing Systems
Optimal video stream multiplexing through linear programming
Image Communication
Optimal policies for playing buffered media streams
NETWORKING'07 Proceedings of the 6th international IFIP-TC6 conference on Ad Hoc and sensor networks, wireless networks, next generation internet
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We describe several high-performance prefetching protocols for the transport of VBR prerecorded video over a shared channel. The protocols are particularly well suite for offering video on demand over a residential cable network, a residential ADSL network, or over a shared satellite channel. We advocate the use of VBR-encoded video instead of CBR video because, for the same image quality, VBR-encoded video can have a significantly lower average rate. However in order to exploit the efficiency of VBR encoding, it is necessary that the VBR scheme multiplex and prefetch streams so that near 100 percent link utilizations are achieved. Our protocols are based on the observation that there are frequent periods of time during which the network bandwidth is under utilized. During these periods the server can prefetch frames from any of the ongoing videos and send the frames to the buffers in the appropriate clients. Simulation results based on MPEG-encoded traces show that the discussed prefetching protocols compare favorably with other VBR transport protocols