Solving Routing and Spectrum Allocation Related Optimization Problems: From Off-Line to In-Operation Flexgrid Network Planning

@article{Velasco2014SolvingRA,
  title={Solving Routing and Spectrum Allocation Related Optimization Problems: From Off-Line to In-Operation Flexgrid Network Planning},
  author={Luis Velasco and Alberto Castro and Marc Ruiz and Gabriel Junyent},
  journal={Journal of Lightwave Technology},
  year={2014},
  volume={32},
  pages={2780-2795}
}
Compared to wavelength switched optical networks (WSON), flexgrid optical networks provide higher spectrum efficiency and flexibility. To properly analyze, design, plan, and operate flexgrid networks, the routing and spectrum allocation (RSA) problem must be solved. The RSA problem involves two different constraints: the continuity constraint to ensure that the allocated spectral resources are the same along the links in the route and the contiguity constraint to guarantee that those resources… CONTINUE READING
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