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Scalable video can be used to provide video streaming reliably to a heterogeneous set of receivers with different subscription levels. However, the performance of such schemes can be highly affected by scheduling constraints and unreliable feedback. Network coding, on the other hand, has been shown to reduce scheduling and prioritization problems and to perform well in wireless scenarios with perfect feedback. Motivated by this observation, the authors implement and analyze system architecture for network coding-based multi-resolution video streaming in a wireless environment.
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