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MobiStream: Error-Resilient Video Streaming in Wireless WANs Using Virtual Channels

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MobiStream: Error-Resilient Video Streaming in Wireless WANs Using Virtual Channels
—We present MobiStream— a video streaming system that exploits the perceptual value in video content and the characteristics of the link layer and physical layer channels to enable error-resilient video streaming over wireless wide-area networks (WWANs). The key building block in MobiStream is the use of link-layer based, but application-controlled, virtual channels (ViCs) abstraction. Each virtual channel offers a level of reliability and statistical loss gaurantees using ‘awareness’ of the characteristics of link-layer and physical layer channels. Video applications can dynamically instantiate new virtual channels, control their loss behavior, and/or flexibly switch video transmission across channels. MobiStream achieves fine-grained error-resilience by partitioning video frames into number of small, independently decodable, blocks of data (called ‘slices’) and assigns priority based on its perceptual (visual) usefulness. MobiStream augments a number of other enhancemen...
Rajiv Chakravorty, Suman Banerjee, Samrat Ganguly
Added 11 Jun 2010
Updated 11 Jun 2010
Type Conference
Year 2006
Where INFOCOM
Authors Rajiv Chakravorty, Suman Banerjee, Samrat Ganguly
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