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Coding-aware routing is an effective approach for incorporating network coding into practical network protocols. The main challenge in exploiting the network coding is how coding opportunities can accurately be identified and utilized. In this paper, we formally establish coding conditions for a very general scenario: Multiple coding nodes may exist along a path, and multiple flows may intersect at...
We investigate network coding in star networks with multiple unicast sessions. We use entropy arguments to upper bound the simultaneous rates of communication among the different nodes in the network and prove that in many cases, the optimal network code is related to the combinatorial optimization problem of finding the maximum number of edge disjoint cycles in the demand graph of the network. Finally,...
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