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Network coding offers new capabilities for efficient information multicasting in communication networks to maximize network throughput. In this paper we address optimal network coding scheme for two source two sinks multicast network. The main contribution of this work is to achieve the outer bound on capacity of network coding for two source two sink network by decomposing the multicast problem into...
Recent research in network coding shows that, joint consideration of both coding and routing strategies may lead to higher information transmission rates than routing only. A fundamental question in the field of network coding is: how large can the throughput improvement due to network coding be? In this paper, we prove that in undirected networks, the ratio of achievable multicast throughput with...
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