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Waveband switching (WBS) has recently attracted attention from a wide range of industry and academia groups for its practical and hierarchial concepts in handling massive lightpaths with reduced control complexity and nodal size. Previous studies demonstrate that non-uniform waveband switching, in which wavebands contain various number of wavelengths, can provide more flexibility for wavelength grouping...
Power-awareness in networking attracts more attention as the trends in the energy consumption of the Internet raise growing concerns about the environmental impacts and sustainability of the network expansion. Building energy efficient equipment is definitely an integral part of the solution. However, such a strategy should be complemented with appropriate network protocols and routing methods to...
Many large-scale scientific applications need to aggregate large amounts of data from multiple distributed sites to a centralized facility. We call such a request as a data-aggregation request (DAR). In this study, we investigate the novel problem of on-demand DAR provisioning over a wavelength-division multiplexing (WDM) backbone network. We provide a mathematical formulation for our problem as a...
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