Abstract
Sliceable Bandwidth-variable Transponders (SBVTs) enhance the configurability and flexibility of Flexgrid optical networks. A single SBVT can be used to transmit and receive several optical signals each modulated with a specific format. A SBVT can be seen as a set of sub-transponders that can be specifically configured to end a specific lightpath, by defining, among other parameters, the modulation format and the central frequency to be used. Modulation formats are characterized by its spectrum efficiency and reachability. In this paper, we propose modulation format-aware algorithms to restore connections affected by a link failure, as well as to re-optimize resource utilization after a link repair.
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