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In this paper, the authors propose a delay and capacity constrained multi-user scalable video streaming scheme that improves the average end-to-end distortion of transmitted video streams compared to traditional streaming strategies. Wireless video streaming applications are characterized by their bandwidth-intensity, delay-sensitivity, and loss-tolerance. Their main contributions include: an analytical expression for packet delay and play-out deadline of Unequal erasure Protection (UXP) protected scalable video, an analysis of the performance of delay-aware, capacity-aware rate allocation for optimized UXP streaming scenarios, and proof that unequal error protection causes a rate-constrained optimization problem to be non-convex.
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