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We are developing an optical layer-2s witch network that uses both wavelength-division multiplexing and time-division multiplexing technologies for efficient traffic aggregation in metro networks.For efficient traffic aggregation,path bandwidth control is key because it strongly affects bandwidth efficiency.For this paper,we propose a dynamic time-slot allocation method that uses periodic information of difference values of traffic variation.This method can derive near-optimal allocation with lower computational cost,which enlarges the maximum available network size compared with conventional time-slot allocation methods.Numerical results show that the proposed method enables dynamic path control in 1K-node-scale optical layer-2s witch network,which leads to cost-effective metro networks.
We are developing an optical layer-2s witch network that uses both wavelength-division multiplexing and time-division multiplexing technologies for efficient traffic aggregation in metro networks. For efficient traffic aggregation, path bandwidth control is key because it strongly affects bandwidth efficiency .For this paper, we propose a dynamic time-slot allocation method that uses periodic information of difference values of traffic variation. This method can derive near-optimal allocation with lower computational cost, which enlarges the maximum available network size compared with conventional time-slot allocation methods .Numerical results show that the proposed method enables dynamic path control in 1K-node-scale optical layer-2s witch network, which leads to cost-effective metro networks.