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A Novel Multi-Granularity Flexible-Grid Switching Optical-Node Architecture
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作者 Zhenfang Huang Bo Zhu +5 位作者 Mingchen Zhu Mengyue Jiang Xinting Song Jiawei Zhao Zheng Wang Fangren Hu 《China Communications》 SCIE CSCD 2023年第1期209-217,共9页
A novel multi-granularity flexible-grid switching optical-node architecture is proposed in this paper.In our system,the photonic lanterns are used as mode division multiplexing/demultiplexing(MD-Mux/MD-Demux)for selec... A novel multi-granularity flexible-grid switching optical-node architecture is proposed in this paper.In our system,the photonic lanterns are used as mode division multiplexing/demultiplexing(MD-Mux/MD-Demux)for selecting mode.The wavelength division multiplexer/demultiplexer(WDMux/WD-Demux)and the fiber bragg gratings(FBGs)are used to select wavelength channels with the various grid.The experimental results show that the transmission bandwidth covers the C+L band,the average transmission loss is-13.4 dB,and the average crosstalk is-30.5 dB.The optical-node architecture is suit for mode division multiplexing(MDM)optical communication system. 展开更多
关键词 optical node multi-granularity switching flexible-grid switching
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Network Resource Provisioning for IP over Multi-Granular Optical Networks
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作者 孙建伟 POO Gee-Swee 《Journal of Beijing Institute of Technology》 EI CAS 2007年第2期157-162,共6页
In the internet protocol(IP) over multi-granular optical switch network (IP/MG-OXC), the network node is a typical multilayer switch comprising several layers, the IP packet switching (PXC) layer, wavelength swi... In the internet protocol(IP) over multi-granular optical switch network (IP/MG-OXC), the network node is a typical multilayer switch comprising several layers, the IP packet switching (PXC) layer, wavelength switching (WXC) layer and fiber switching (FXC) layer. This network is capable of both IP layer grooming and wavelength grooming in a hierarchical manner. Resource provisioning in the multi-granular network paradigm is called hierarchical grooming problem. An integer linear programming (ILP) model is proposed to formulate the problem. An iterative heuristic approach is developed for solving the problem in large networks. Case study shows that IP/MG-OXC network is much more extendible and can significantly save the overall network cost as compared with IP over wavelength division multiplexing network. 展开更多
关键词 hierarchical traffic grooming multilayer switch network IP over multi-granular optical network (IP/MG-OXC) wavelength division multiplexing (WDM) optical switch cross-connect (OXC)
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