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- W4220797345 abstract "With constant traffic growth network providers that operate Dense Wavelength Division Multiplexing networks need to quickly find solutions to upgrade their networks. A key challenge represents coping with increased traffic demands while utilizing minimal resources. Simultaneously, the availability of bandwidth variable transceivers offers network planners the possibility to flexibly allocate resources without excessively overprovisioning the network. However, this advantage increases the complexity of planning algorithms: varying data rate, channel bandwidth, modulation format, and corresponding receiver sensitivity must be accounted for in each transceiver configuration along with the available frequencies. Furthermore, the allocation of flexible grid channels requires the calculation of the non-linear interference penalty whenever channels are added, removed, or reconfigured. We present an algorithmic approach that offers an efficient way of multiple lightpaths reconfiguration, either for increased traffic requests, or lightpath restoration. It permits the building of a feasible optical network design considering the available spectrum, traffic demand characteristics, network topology, equipment configurations, and engineering constraints. We show the employment of methods for calculating and provisioning multiple lightpaths. Our approach is flexible enough to accommodate optical network topologies of different types and sizes. The result is a lightpath configuration that is optimized for spectrum utilization and generalized optical signal to noise ratio (GSNR) degradation." @default.
- W4220797345 created "2022-04-03" @default.
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- W4220797345 date "2022-03-04" @default.
- W4220797345 modified "2023-09-27" @default.
- W4220797345 title "Transmission - aware multiple lightpath reconfiguration in flexgrid optical networks" @default.
- W4220797345 doi "https://doi.org/10.1117/12.2608677" @default.
- W4220797345 hasPublicationYear "2022" @default.
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