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Multiple description codes have been shown to facilitate heterogeneous multicast using routing with replication. The authors develop the concept of combining practical network coding and multiple description coding, as introduced by Chou et al., for video multicast in lossless networks where users get video according to their available resources. They also show that network coding enables the server to provide Quality of Service that is centrally controlled. The lack of the need to maintain multiple trees (as in routing) helps in ease of construction of the multicast delivery system. The simulation results show that using practical network coding provides significant control over the rate allocation for the resources.
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