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Various static resource allocation algorithms have been used in WDM networks to allocate resources such as wavelength channels, transmitters, receivers, and wavelength converters to a given set of static lightpath demands, based on certain design objectives. However, although optimized resource allocations can be obtained, it remains an open issue how to determine which resources are bottlenecks to...
Until recently, the problem of how to design survivable optical networks under single link failure has been studied quite extensively. However, the study on the design of optical networks for single node failure has been rarely discussed. This paper proposes 3 methods to reconfigure multicast traffic in WDM network for single node failure based on integer linear programming (ILP) technique by reconfiguration...
In a dynamic lightpath allocation scheme, a lightpath is established on-demand, in response to a request for communication. The optimization techniques traditionally used in determining an optimum routing and wavelength assignment (RWA) in a robust WDM network are quite complex, requiring a significant amount of time. In this paper we introduce a new integer linear program (ILP) formulation for dynamic...
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