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Dynamic Routing and Frequency Slot Assignment for Elastic Optical Path Networks that Adopt Distance Adaptive Modulation
Networks assignment routing algorithms All-optical networks
2015/5/25
We propose a dynamic routing and frequency slot assignment algorithm for SLICE networks that employ distance adaptive modulation. We verify that the spectrum utilization penalty that stems from non-un...
Traffic Grooming in Spectrum-Elastic Optical Path Networks
Networks Networks network optimization
2015/5/22
We propose a novel approach of traffic grooming in Spectrum-Elastic Optical Path Networks. Higher spectrum efficiency is achieved by our approach comparing with non-traffic-grooming scenario.
Optical Network Design Algorithms that Consider Optical Path Add/Drop Ratio Restrictions for OXC Hardware Scale Reduction
Optical Network Design Algorithms Hardware Scale Add/Drop Ratio
2015/5/18
We develop network design algorithms that consider constraints on the number of added/dropped optical paths at nodes in terms of wavelength and of fiber. The strategy is demonstrated to significantly ...
Dynamic Routing and Spectrum Assignment in Flexible Optical Path Networks
Dynamic Routing Flexible Optical Path Network Spectrum Assignment
2015/5/15
We propose dynamic routing and spectrum assignment algorithms for bitrate-flexible lightpaths in OFDM-based optical networks. The novel algorithms enable dynamic spectrum assignment with more efficien...
Partial Implementation and Experimental Demonstration of an Integrated Optical Path and Packet Node for New- Generation Networks
Networks Optical communications
2015/6/8
We partially implement and experimentally evaluate an integrated optical path/packet node toward new-generation networks. Our own OCS control system successfully performs both dynamic changes of light...
Distance-Adaptive Spectrum Allocation in Elastic Optical Path ?etwork (SLICE) with Bit per Symbol Adjustment
All-optical networks Fiber optics links subsystems
2015/6/8
We present a concept of spectrally-efficient optical networking with distance-adaptive spectral allocation by adjusting the number of modulation levels. We demonstrate it by routing 40 Gb/s optical pa...
Demonstration of Compact Hierarchical Optical Path Cross-Connect Utilizing Wavelength/Waveband Selective Switches
Optical communications Switching circuit
2015/6/5
We demonstrate a compact wavelength/waveband selective switch based hierarchical optical cross-connect (HOXC) system for the first time. Its performance confirms that the HOXC will be applied to creat...
Optical Path Restoration for Up to Two Failures Using Preconfigured Cycles
Optical Path Restoration Two Failures Preconfigured Cycles
2015/6/5
We describe a method for designing path protection for single- and multiple-wavelength optical demands surviving up to two failures. Preconfigured cycles cost-effectively provide immediate restoration...
Impacts of Waveband Capacity and Waveband Add/Drop Ratio on the Performance of ROADM-Ring Connecting Hierarchical Optical Path Cross-Connects
Networks assignment routing algorithms Networks ring
2015/6/5
We analyze the performance of a multiple-ROADM-ring connected network that utilizes Hierarchical Optical Cross-Connects (HOXC). We clarify the impacts of the waveband capacity and waveband add/drop ra...
1 Tb/s Optical Path Aggregation with Spectrum-Sliced Elastic Optical Path Network SLICE
Optical Path Aggregation Spectrum-Sliced Elastic Optical Path Network SLICE
2015/7/16
We demonstrate highly spectrally-efficient path aggregation directly in the optical domain. Multiple hundred-gigabit class flows are aggregated into a seamless 1 Tb/s optical path and transmitted in s...
Demonstration of Novel Spectrum-Efficient Elastic Optical Path Network with Per-Channel Variable Capacity of 40 Gb/s to Over 400 Gb/s
Spectrum-Efficient Elastic Optical Path Network Per-Channel Variable Capacity
2015/8/6
We demonstrated, for the first time, a novel spectrum-efficient elastic optical path network for 100 Gb/s services and beyond, based on flexible rate transceivers and variable-bandwidth wavelength cro...
Network Segmentation and Design Algorithm for Large-Scale Optical Path Networks based on Traffic Distribution Information
Network Segmentation Design Algorithm Large-Scale Optical Path Networks Traffic Distribution Information
2015/8/3
We propose a network segmentation and design algorithm based on traffic distribution information.Numerical experiments demonstrated that the proposed algorithm can greatly reduce network cost.