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Design and Implementation of An Index-based Parallel Scheduler for Optical Burst Switching Networks
Optical Burst Switching Networks Index-based Parallel Scheduler
2015/5/15
A fast and easy to implement index-based parallel burst scheduler for OBS network is proposed. A 16-channel scheduler with scheduling time of 33.3ns per burst request is demonstrated in FPGA.
An Outer-ROADM-Ring-Based Multi-Domain Routing Scheme in Optical WDM Networks
Optical WDM Network Outer-ROADM-Ring-Based Outer-ROADM Ring-Based
2015/5/15
We propose a novel outer-ROADM-ring (ORR) based multi-domain routing scheme in optical WDM networks. Results show that this scheme has both high scalability and low blocking probability, while preserv...
All-Optical Self-Synchronizing Scheme for Contention Resolution in Asynchronous Optical Packet Switched Networks Using Continuously Tunable Optical Delay Line
Continuously Tunable Optical Delay Line All-Optical Self-Synchronizing Scheme Switched Networks
2015/5/15
Continuously tunable, optically-controlled variable delay line based on dynamic Brillouin grating is exploited for automated synchronization of switching signals in a network node, enabling asynchrono...
Evolutive Lightpath Assessment in GMPLS-controlled Transparent Optical Networks
GMPLS-controlled Transparent Optical Network Lightpath Assessment
2015/5/15
A method to mix impairments estimations and in-field measured data is proposed to evaluate the Quality of Transmission of new lightpaths. It is applied before lightpath establishment and increases the...
Blocking Performance in Dynamic Optical Networks based on Colorless,Non-directional ROADMs
Dynamic Optical Network Blocking Performance Non-directional ROADM
2015/5/15
We show that blocking in dynamic networks of colorless, non-directional ROADMs is tolerant to intra-node contention when contention-aware routing/wavelength assignment (RWA) algorithms are used. An op...
Silica Nano-Networks as Stretches on Segmented SU8 Rods for Sub-Wavelength Photonics
Optical Properties, CdBr2, WIEN2k, FP-LAPW, DFT, GGA
2013/1/30
The optical properties of CdBr2 were studied by first principle using the density functional theory. The dielectric functions and optical constants are calculated using the full potential-linearized a...
Bit error rate (BER) performance of return-to-zero and non-return-to-zero data signals optical code division multiple access (OCDMA) system based on AND detection scheme in fiber-to-the-home (FTTH) networks
spectral amplitudes coding – optical code division multiple access detectionscheme subtraction technique non-return-to-zero (NRZ) and return-to-zero (RZ) pulse generator
2011/5/5
In this paper, we will focus on the modulation format used to create the optical pulses, which are
return-to-zero (RZ), and non-return-to-zero (NRZ). Bit error rate (BER) performance is evaluated
ba...
Energy consumption of electronic burst switching is modeled and compared to electronic packet switching in the network core and edge. It is shown that burst switching can provide significant energy sa...
On the Energy Efficiency of Mixed-Line-Rate Networks
Energy Efficiency Mixed-Line-Rate Networks
2015/6/11
We present an approach to evaluate energy efficiency of mixed-line-rate (MLR)optical networks. A comparative study of energy efficiency of MLR and single-line-rate (SLR)networks shows that MLR is more...
Based on traffic models the energy consumption of adaptive networks is compared to networks with constant power consumption. The results show that adaptive network resource allocation serves to reduce...
Advanced Technologies for Next-Generation Fiber Networks
Fiber optics communications Systems
2015/6/11
We review key advanced technologies for next-generation optical networking. These include advanced physical layer techniques for 100 Gb/s transmission, packet-based transport in core and metro network...
On the Spectrum-Efficiency of Bandwidth-Variable Optical OFDM Transport Networks
Spectrum-Efficiency Bandwidth-Variable Optical OFDM Transport Networks
2015/6/10
We investigated the high spectrum efficiency property of the bandwidth-variable optical OFDM (BV-OOFDM) transport networks. In contrast to mixed-line-rate (MLR) networks, BV-OOFDM enables flexible all...
Multi-service MAC-enabled OBS Networks
Department of Telematics Engineering, Universitat Politècnica de Catalunya (UPC) Esteve Terradas 7, 08860, Castelldefels, Spain
2015/6/10
In this paper, a novel multi-service architectural solution based on a MAC protocol for mesh OBS networks is designed and the network performance among TDM services and connectionless bursts transmiss...
Cloud Computing over Light-trail WDM Core Networks
Cloud Computing Light-trail WDM Core Networks
2015/6/10
Light-trail, a spatial sub-wavelength optical grooming solution for WDM networks, facilitates dynamic bandwidth provisioning and optical multicasting - essential for cloud computing services. We evalu...
ThoughthebenefitofwavelengthswitchinginWDMnetworksiswellunderstood,thatof fast switching at packet/burst level is not. We show that fast switching can further reduce wavelength resources and OEO conve...