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Transparent elastic optical networks (EON) allow provisioning connections with different bandwidth requirements in an efficient way. To achieve the high spectrum efficiency under dynamic traffic scenario, fragmentation-aware Routing, Modulation and Spectrum Assignment (RMSA) decisions is essential. Since fiber cuts are common, resiliency against single-link failures is another important topic. This...
Elastic Optical Network (EON) is a promising technology proposed recently to provide flexible and multi-bitrate data transmission in the optical layer. EONs utilize various modulation format conversion and smaller spectrum granularity, what provide more efficient use of spectrum resources comparing to currently used fix-grid WDM networks. Concurrently, growing popularity of network services provided...
In this paper, we focus on a survivable elastic optical network (EON) that supports both unicast and anycast traffic demands. The network implements a dedicated path protection scheme (DPP), in which backup lightpaths are assigned to traffic demands so that to protect against single link failures. In a normal network state, each anycast demand is served by a specific data center (DC). However, we...
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