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As the survivable mapping is critical in IP-over-wavelength-division-multiplexing (WDM) network to guarantee the restorability of IP layer, provisioning survivability in network with dynamic traffic is essential. However, survivable mapping problem for dynamic traffic shows more complexity than that for static traffic: 1) How to guarantee a survivable mapping since the lightpath is established and...
The transport traffic in WDM optical networks are provided to the networks customers in the form of lightpath via virtual topology reconfiguration (VTR), thus the algorithm to perform such an VTR has crucial impact on the resource usage efficiency. This paper proposes the routing algorithm of the Virtual Topology Reconfiguration based on the Genetic Algorithm (VTR-GA) for static traffic in the IP/WDM...
The survivable logical topology mapping (SLTM) problem in an IP-over-WDM optical network is to map each link (u, v) in the logical topology (at the IP layer) into a lightpath between the nodes u and v in the physical topology (at the optical layer) such that failure of a physical link does not cause the logical topology to become disconnected. It is assumed that both the physical and logical topologies...
In this paper, we propose a cooperation mechanism among multiple virtual topologies in wavelength-routed optical networks. It is based on attractor selection and superimposition, which models the biological systems that behave cooperatively and symbiotically only by sharing a small amount of information with each other. While our proposed method allows each virtual topology to be controlled in a distributed...
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