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Provisioning Schemes Accounting for ROADM Add/Drop Constraints in GMPLS-based WSON
Provisioning Schemes Accounting ROADM Add/Drop Constraints GMPLS-based WSON
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2015/5/21
Provisioning schemes exploiting the recently introduced GMPLS extensions for add/drop in WSONs are proposed to effectively handle different ROADM structures and provide a preference on the utilization...
Heuristic Resource Provisioning for Dynamic Wavelength Services with Access Port Constraints
Heuristic Resource Provisioning Dynamic Wavelength Services Access Port Constraints
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2015/5/21
This paper introduces a fast heuristic resource provisioning algorithm for dynamic wavelength services on agile reconfigurable ROADM networks on which customer connections are only constrained by acce...
Impact of transparent network constraints on capacity gain of elastic channel spacing
network constraints channel spacing capacity gain
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2015/5/15
We compare fixed-grid network architectures with variable-spacing OFDM based solutions. We show that capacity gains can reach up to 50% but are strongly affected by physical and topological constraint...
Analysis of Static Versus Fully-Dynamic Routing in IP/GMPLS over WDM Optical Networks with Physical-Layer Impairment Constraints
Static Versus Fully-Dynamic Routing WDM Optical Networks Physical-Layer Impairment Constraints
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2015/7/17
We investigate static and dynamic routing approaches in overlay IP/GMPLS over optical networks.Dynamic operation for full-wavelength services benefits from physical-layer impairment aware routing wher...
Experimental Analysis of 100Gb/s Coherent PDM-QPSK Long-Haul Transmission under Constraints of Typical Terrestrial Networks
Coherent PDM-QPSK Long-Haul Transmission Constraints Typical Terrestrial Networks
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2015/8/3
Coherent transmission systems using PDM-QPSK format are found particularly robust to the constraints of all-erbium amplifiers based, transparent terrestrial networks when operating at 100Gb/s channel ...
Fuzzy clustering with spatial constraints for image thresholding
image thresholding fuzzy c-means k-nearest neighbor fuzzy thresholding
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2011/4/28
Image thresholding plays an important role in image segmentation. This paper presents a novel fuzzy clustering based image thresholding technique, which incorporates the spatial neighborhood informati...