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With the expansion of optical networks, the failure probability of dual-link failure has also improved, so it is urgent to find novel protection structures to deal with dual-link failure. In this paper, we mainly focus the protection structures to solve the problem. Firstly, we describe the scenarios and the problem of dual-link failure. Then, theory of pre-configured polyhedron (p-Poly) is introduced...
A unified control plane is necessary to be designed for multi-layer optical networks, especially for IP over WDM networks to improve the performance and efficiency of the entire networks. This paper focuses on the framework of PCE-based unified control plane, and proposes some strategies for different optimization objectives.
Generalized Multi-Protocol Label Switching (GMPLS) based optical networks are viewed as a promising network infrastructure for the next generation network (NGN) development. By pre-configuring the resources of dynamic optical networks, we can reconstruct the physical topology, thus increase the number of direct routes between potentially heavily loaded physical node pairs and optimize the performance...
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