896 Hits in 5.3 sec

Nonlinear Impairment-Aware Static Resource Allocation in Elastic Optical Networks

Juzi Zhao, Henk Wymeersch, Erik Agrell
2015 Journal of Lightwave Technology  
This paper studies the routing, modulation format, and spectrum allocation problem in elastic fiberoptical networks for static traffic.  ...  Index Terms-NWDM, OOFDM, elastic optical networks, routing and spectrum assignment, physical impairments.  ...  CONCLUSIONS In this paper, we investigated the nonlinear impairment aware routing and spectrum allocation problem in elastic networks based on Nyquist wavelength division multiplexing (NWDM) and optical  ... 
doi:10.1109/jlt.2015.2474130 fatcat:kziroacalfc3rig3sfo3dd3ydy

Nonlinear Impairment Aware Resource Allocation in Elastic Optical Networks

Juzi Zhao, Henk Wymeersch, Erik Agrell
2015 Optical Fiber Communication Conference   unpublished
We propose a novel integer linear program formulation and low-complexity heuristics for nonlinear impairment-aware routing and spectrum allocation in OOFDM-based elastic optical networks.  ...  We present results for two network topologies [3, Fig. 5 ]: a small 6-node network (with average link length 455.56 km) and the larger 14-node Deutsche Telekom (DT) network.  ...  Most existing related work on impairment-aware routing and wavelength assignment (RWA) in elastic optical networks are based on transmission-reach limits [2, 5] , where each modulation format has a reach  ... 
doi:10.1364/ofc.2015.m2i.1 fatcat:jmiwehpw35anbosq4j6itqktxi

Code rate optimization in elastic optical networks

Juzi Zhao, Li Yan, Henk Wymeersch, Erik Agrell
2015 2015 European Conference on Optical Communication (ECOC)  
We combine adaptive coding with nonlinear impairment-aware routing and spectrum allocation problem in elastic optical networks.  ...  Although the routing and spectrum allocation (RSA) problem for optical networks has been studied for over one decade, resource allocation with adaptive coding is a recently emerging research topic.  ...  In addition, an adaptive SNR margin is used to estimate nonlinear interference from future calls. The CL heuristic allocates resources to the set of connections one by one.  ... 
doi:10.1109/ecoc.2015.7342000 fatcat:cthyv5jvgvgczkmvatcibajxq4

Congestion Aware Routing in Nonlinear Elastic Optical Networks

Seb J. Savory
2014 IEEE Photonics Technology Letters  
In a nonlinear elastic optical network, these parameters are inherently coupled with the routing algorithm.  ...  We propose to use congestion aware routing in a nonlinear elastic optical network and demonstrate its efficacy for the NSFNET reference network (14 nodes, 22 links).  ...  CONCLUSION Congestion aware routing has been investigated in nonlinear elastic optical networks and shown to be effective for the reference NSFNET topology.  ... 
doi:10.1109/lpt.2014.2314438 fatcat:p2yu2zyocbephcxuscqcdafbtu

Artificial intelligence-driven autonomous optical networks: 3S architecture and key technologies

Yuefeng Ji, Rentao Gu, Zeyuan Yang, Jin Li, Hui Li, Min Zhang
2020 Science China Information Sciences  
Therefore, to enable the adaptive pattern learning, nonlinear impairments compensation, network devices controlling, intelligent resource allocation and automatic network fault management, it is significant  ...  In this review, we propose a "3S" architecture for AI-driven autonomous optical network, which can aid the optical networks operated in "self-aware" of network status, "self-adaptive" of network control  ...  Generally, in a WDM network, a resource allocation task is called a routing and wavelength assignment (RWA) problem, and in an elastic optical network (EON), the resource allocation task is called a routing  ... 
doi:10.1007/s11432-020-2871-2 fatcat:vrxcbkn5zzcshh5a4an5hyayvm

Artificial Neural Network‐based Adaptive Modulation for Elastic Optical Networks

Amir Zarezadeh Reihani, Mohammad Behdadfar, Mohammadali Sebghati
2021 Internet Technology Letters  
We investigate the feasibility of using machine learning to solve the problem of modulation type allocation for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) elastic optical networks  ...  To cope with ever-increasing complexity in call admission of next-generation optical networks, deployment of machine learning stands as a promising solution.  ...  Towards this end, the concept of elastic optical networking (EON) with its inherent flexible-grid channel allocation has taken great strides in having its technology accepted as a promising solution.  ... 
doi:10.1002/itl2.291 fatcat:bbzkegypefhq3bckthzuqpm7ci

Routing Core and Spectrum Allocation Algorithm for Inter-Core Crosstalk and Energy Efficiency in Space Division Multiplexing Elastic Optical Networks

Huanlin Liu, Qile Xiong, Yong Chen
2020 IEEE Access  
INDEX TERMS SDM-EONs, dynamic resource allocation, Energy efficiency grooming, Inter core crosstalk.  ...  However, the problems of high energy consumption and inter-core crosstalk (ICXT) in space-division multiplexing elastic optical networks (SDM-EONs) are also particularly prominent.  ...  An established optical path may not transmit the request due to severe signal impairment. ICXT and nonlinear impairment in physical impairment are the focus of research. T.  ... 
doi:10.1109/access.2020.2985422 fatcat:gdsl35csfjem3jebw4mrzapxky

Artificial intelligence (AI) methods in optical networks: A comprehensive survey

Javier Mata, Ignacio de Miguel, Ramón J. Durán, Noemí Merayo, Sandeep Kumar Singh, Admela Jukan, Mohit Chamania
2018 Optical Switching and Networkning Journal  
Then, applications related to optical network control and management are also reviewed, including topics like optical network planning and operation in both transport and access networks.  ...  Finally, the paper also presents a summary of opportunities and challenges in optical networking where AI is expected to play a key role in the near future.  ...  as for performance monitoring, mitigation of nonlinearities, and for QoT estimation, which is particularly relevant in impairment-aware optical network operation.  ... 
doi:10.1016/j.osn.2017.12.006 fatcat:i443tt6fv5g2jmvfe7kn57unbq

Elastic and adaptive optical networks: possible adoption scenarios and future standardization aspects

Masahiko Jinno, Takuya Ohara, Yoshiaki Sone, Akira Hirano, Osamu Ishida, Masahito Tomizawa
2011 IEEE Communications Magazine  
results in serious impairment due to nonlinear effects in optical fibers.  ...  As well as the optical channel itself, network operators need to be aware of the endto-end spectral resources in elastic optical networks.  ... 
doi:10.1109/mcom.2011.6035831 fatcat:htium3k2xrbitk2sud25hegviq

Jamming-Aware Control Plane in Elastic Optical Networks [article]

Ítalo Brasileiro, Mounir Bensalem, André Drummond, Admela Jukan
2020 arXiv   pre-print
Physical layer security is essential in optical networks. In this paper, we study a jamming-aware control plane, in which a high power jamming attack exists in the network.  ...  jamming with an aware controller.  ...  Elastic optical networks (EON) appear in this context as an infrastructure candidate to accomplish the requirement for higher transmission rates [2] .  ... 
arXiv:2006.02896v1 fatcat:hhedtzcrm5godakjjh5jrxoqha

Crosstalk-aware RCSA for spatial division multiplexing enabled elastic optical networks with multi-core fibers

Ruijie Zhu Ruijie Zhu, Yongli Zhao Yongli Zhao, Hui Yang Hui Yang, Haoran Chen Haoran Chen, Jie Zhang Jie Zhang, and Jason P. Jue and Jason P. Jue
2016 Chinese Optics Letters (COL)  
In this Letter, we propose two crosstalk-aware routing, core, and spectrum assignment (CA-RCSA) algorithms for spatial division multiplexing enabled elastic optical networks (SDM-EONs) with multi-core  ...  First, the RCSA problem is modeled, and then a metric, i.e., CA spectrum compactness (CASC), is designed to measure the spectrum status in SDM-EONs.  ...  Enabled by orthogonal frequency division modulation (OFDM) technology and a sliceable bandwidth-variable transponder, elastic optical networks (EONs) can be a promising technique for these diverse applications  ... 
doi:10.3788/col201614.100604 fatcat:em2utuc2u5dnpkml62lxncgvoq

A Novel Traffic Grooming Scheme for Nonlinear Elastic Optical Network

Rui Wang, Fanchao Meng, Reza Nejabati, Dimitra Simeonidou
2017 2017 European Conference on Optical Communication (ECOC)  
Nonlinearity-aware resource allocation scheme 3 use Gaussian noise (GN) model 4 as NLI model to minimize the maximum subcarrier index.  ...  Elastic optical networks 2 (EON) based on coherent detection is a promising technology to meet the emerging heterogeneous traffic demands by enabling grid-less switching and bandwidth adaptable transceivers  ... 
doi:10.1109/ecoc.2017.8346004 fatcat:qdfzyhfchrcvdndlrqub4nlv2a

Recent Advances in Elastic Optical Networking

Takafumi TANAKA, Masahiko JINNO
2014 IEICE transactions on communications  
Making closely-dependent networking and hardware technologies work synergistically is the key factor in implementing truly effective elastic optical networks. key words: elastic optical network, network  ...  This paper reviews the recent advances in the elastic optical network from the aspects of networking technology and hardware design.  ...  Acknowledgment This work was partly supported by the National Institute of Information and Communication Technology (NICT) under the R&D of Elastic Optical Networking Technologies.  ... 
doi:10.1587/transcom.e97.b.1252 fatcat:y3v4epfb5nekndq2vzyb3skvku

Joint minimization of spectrum and power in impairment-aware elastic optical networks

Kusala Munasinghe, M. Nishan Dharmaweera, Uditha Wijewardhana, Chamitha. De Alwis, Rajendran Parthiban
2021 IEEE Access  
The authors also thank the anonymous reviewers for their critical comments that greatly helped in improving the contents of this paper.  ...  With the advent of accurate noise models, several impairment-aware resource allocation schemes came into existence in the last decade.  ...  The impairment-aware RMSA schemes presented in [7] , [8] , [16] , and [17] estimate PLIs using the Gaussian Noise (GN) model and allocate resources accordingly.  ... 
doi:10.1109/access.2021.3065964 fatcat:mfjarnxvjvgnhknhhqp5b3ycgu

Traffic-Grooming- and Multipath-Routing-Enabled Impairment-Aware Elastic Optical Networks

Madushanka Nishan Dharmaweera, Juzi Zhao, Li Yan, Magnus Karlsson, Erik Agrell
2016 Journal of Optical Communications and Networking  
. ; Karlsson, M. et al. (2016) "Traffic-grooming-and multipathrouting-enabled impairment-aware elastic optical networks".  ...  They have been recently applied in elastic optical networks to increase spectral efficiency.  ...  To increase utilization of this available high bandwidth, nextgeneration optical networks are expected to evolve into more transmission-rate-flexible, reconfigurable, and capacityefficient elastic optical  ... 
doi:10.1364/jocn.8.000058 fatcat:jr7jlzulujcw7gmzat3ohog5fy
« Previous Showing results 1 — 15 out of 896 results