Proceedings ArticleDOI
Network planning strategies for next-generation flexible optical networks
TLDR
Using well-established results on non-linear propagation modeling in coherent optical links, two different approaches for network performance optimization are addressed and compared in terms of performance maximization and robustness to dynamic changes in the network.Abstract:
Using well-established results on non-linear propagation modeling in coherent optical links, two different approaches for network performance optimization are addressed and compared in terms of performance maximization and robustness to dynamic changes in the network.read more
Citations
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Journal ArticleDOI
The GN-Model of Fiber Non-Linear Propagation and its Applications
TL;DR: This paper tries to gather the recent results regarding the Gaussian-noise model definition, understanding, relations versus other models, validation, limitations, closed form solutions, approximations and, in general, its applications and implications in link analysis and optimization, also within a network environment.
Journal ArticleDOI
Network planning strategies for next-generation flexible optical networks [invited]
TL;DR: It is shown that, in pure coherent optical networks, the planning strategy that best supports the dynamic evolution of the network is the design aimed at BER minimization.
Journal ArticleDOI
Potentialities and criticalities of flexible-rate transponders in DWDM networks: A statistical approach
TL;DR: A novel method to assess physical layer potentialities of core optical networks aimed at finding solutions that better exploit the installed equipment and displaying the overall statistics for the average bit rate per lightpath is proposed.
Journal ArticleDOI
Gradual Migration of Co-Existing Fixed/Flexible Optical Networks for Cloud-Fog Computing
TL;DR: Numerical results illustrate that the proposed MSP scheme can effectively enhance the traffic stability compared to Non-migration-aware Service Provisioning (NSP) scheme, and the connection interrupted ratio is excessively reduced.
References
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Journal ArticleDOI
Elastic optical networking: a new dawn for the optical layer?
TL;DR: The drivers, building blocks, architecture, and enabling technologies for a whole new elastic optical networking paradigm are described, as well as early standardization efforts.
Journal ArticleDOI
The GN Model of Non-Linear Propagation in Uncompensated Coherent Optical Systems
TL;DR: This paper is devoted to an in-depth discussion of the Gaussian Noise model which describes non-linear propagation in uncompensated coherent transmission systems and its implications as to system and networks design and optimization are discussed.
Journal ArticleDOI
Closed-form expressions for nonlinear transmission performance of densely spaced coherent optical OFDM systems.
Xi Chen,William Shieh +1 more
TL;DR: This paper derives closed-form analytical expressions for nonlinear system performance of densely spaced coherent optical OFDM (CO-OFDM) systems and identifies their dependence on system parameters including fiber dispersion, number of spans, dispersion compensation ratio, and overall bandwidth.
Journal ArticleDOI
Phased-array cancellation of nonlinear FWM in coherent OFDM dispersive multi-span links
Moshe Nazarathy,Jacob B. Khurgin,Rakefet Weidenfeld,Yehuda Meiman,P.S. Cho,Reinhold Noe,Isaac Shpantzer,Vadim Karagodsky +7 more
TL;DR: An analytic model of Coherent Optical Orthogonal Frequency Division Multiplexing (OFDM) propagation and detection over multi-span long-haul fiber links is developed, comprehensively and rigorously analyzing the impairments due the combined effects of FWM, Dispersion and ASE noise.
Proceedings ArticleDOI
The LOGON strategy for low-complexity control plane implementation in new-generation flexible networks
Pierluigi Poggiolini,Gabriella Bosco,Andrea Carena,Roberto Cigliutti,Vittorio Curri,Fabrizio Forghieri,R. Pastorelli,Stefano Piciaccia +7 more
TL;DR: It is shown that local optimization leads to global optimization (LOGO) and a network optimization strategy (LOGON) that allows substantial control-plane simplification is proposed.