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Network coding-based link failure recovery techniques provide near-hitlessrecovery and offer high capacity efficiency. Diversity coding is the firsttechnique to incorporate coding in this field and is easy to implement oversmall arbitrary networks. However, its capacity efficiency is restricted by itssystematic coding and high design complexity even though its design complexityis lower than the other coding-based recovery techniques. Alternativetechniques mitigate some of these limitations, but they are difficult toimplement over arbitrary networks. In this paper, we propose a simple columngeneration-based design algorithm and a novel advanced diversity codingtechnique to achieve near-hitless recovery over arbitrary networks. The designframework consists of two parts: a main problem and subproblem. Main problem isrealized with Linear Programming (LP) and Integer Linear Programming (ILP),whereas the subproblem can be realized with different methods. The simulationresults suggest that both the novel coding structure and the novel designalgorithm lead to higher capacity efficiency for near-hitless recovery. Thenovel design algorithm simplifies the capacity placement problem which enablesimplementing diversity coding-based techniques on very large arbitrarynetworks.

Link Failure Recovery over Very Large Arbitrary Networks: The Case of Coding