Exploració per autor "Comellas Colomé, Jaume"
Ara es mostren els items 22-41 de 86
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Efficient spectrum assignment in elastic optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe Elastic Optical Network (EON) architecture has been proposed in response to the large capacity and diverse traffic granularity needs of the future Internet. By breaking the fixed-grid spectrum allocation of WDM networks, ... -
Evaluating scalability, resiliency, and load balancing in software-defined networking
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-12-04)
Article
Accés obertWith emerging technologies like cloud computing and big data, managing traditional networks has become more demanding. Software-defined networking (SDN) promises faster implementation, flexibility, and simplified network ... -
Evaluation of Add/Drop flexibility requirements in future SDM-enabled ROADMs
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertIn this paper, we evaluate five different architectures for implementing the Add/Drop module of future Spatial Division Multiplexing (SDM)-enabled Re-configurable Optical Add & Drop Multiplexers (ROADMs) with different ... -
Experimental assessment of bulk path restoration in multi-layer networks using PCE-based global concurrent optimization
(2014-01-01)
Article
Accés restringit per política de l'editorialGeneralized multi-protocol label switching-based multi-layer networks (MLN) combining packet and optical switching lead to jointly leverage intrinsic per-layer benefits such as statistical multiplexing and huge transport ... -
Experimental demostration of an all-fiber polarization controller based on faraday rotation
(1995-12)
Article
Accés obertAn all-fiber device for the control of the state of polarization (SOP) is presented. The controller is high speed (its time response is less than 50 ms in the worst case), low loss (insertion losses are 2.5 dB independently ... -
Experimental evaluation of a dynamic PCE-based regenerator-efficient IA-RWA algorithm in translucent WSON
(2012)
Text en actes de congrés
Accés obertWe devise a novel dynamic PCE-based impairment-aware RWA algorithm in translucent GMPLS WSON that minimizes regenerator usage. Experimental evaluation carried out on the Open GMPLS/PCE control plane of CTTC ADRENALINE ... -
Extending the flexgrid optical core towards the edges
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialNational IP/MPLS network have being designed on top of fixed-grid DWDM optical networks so to spread out covering large areas. Besides, multilayer IP/MPLS-over-DWDM networks take advantage from grooming to achieve high ... -
Feature-based optical spectrum monitoring for failure detection and identification
(2019)
Text en actes de congrés
Accés obertIn this paper, we explore the benefits of analysing the optical spectrum of lightpaths for soft-failure detection and identification in Spectrum Switched Optical Network. We present a framework exploiting machine learning ... -
Global concurrent optimization: advantages and opportunities in flexgrid-based networks
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialIn future flexgrid core networks the amount of lightpaths might increase significantly as a consequence of the finer granularity in the use of the optical spectrum. Different spectrum bandwidth can be allocated to each ... -
GMPLS control plane network design with resilience guarantees
(2011-01-01)
Article
Accés restringit per política de l'editorialA one-to-one association between data and control channels has traditionally existed in transport networks. Being the control plane embedded in the data plane, the design of the former, as well as its resilience, has been ... -
High capacity optical networks based on space division multiplexing
(John Wiley & sons, 2017-09-01)
Capítol de llibre
Accés restringit per política de l'editorialThis book discusses Elastic Optical Networks (EONs) from an operational perspective. It presents algorithms that are suitable for real-time operation and includes experimental results to further demonstrate the feasibility ... -
Impact of aggregation level on the performance of dynamic lightpath adaptation under time-varying traffic
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialIn this article we focus on lightpath adaptation under time-varying traffic in a dynamic elastic optical network (EON) implementing flexgrid optical technology. In the considered scenario, a number of IP/MPLS metro area ... -
Impact of filter sharpness on the performance of elastic optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialElastic optical network (EON) technology arises as a promising solution for future high-speed optical transport networks, inasmuch as it can provide superior flexibility and scalability in the spectrum allocation for ... -
Impact of optical hop constraints on the IP/MPLS-over-WSON Networks CAPEX
(2015-11-01)
Article
Accés obertIn this work, the impact of hop constraints on the CAPEX of multi-layer IP/MPLS over WSON networks is evaluated under different scenarios. By routing lightpaths with different number of transparent hops, the cost of networks ... -
Impact of traffic delay tolerance on elastic optical networks performance
(2020)
Text en actes de congrés
Accés obertElastic Optical Networks (EON) are considered as a valuable solution to enhance optical networks efficiency due to their superior network spectrum use. By breaking the traditional fixed grid of WDM networks, the spectrum ... -
Improving link spectrum utilization in Flexgrid optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2015-07-01)
Article
Accés obertFlexible grid optical networks are emerging as an appealing solution for future high-speed optical transport because they can provide superior flexibility and scalability and cope with the rapid growth of Internet traffic. ... -
Learning from the optical spectrum: failure detection and identification [Invited]
(Institute of Electrical and Electronics Engineers (IEEE), 2018-07-23)
Article
Accés obertThe availability of coarse-resolution cost-effective Optical Spectrum Analyzers (OSA) allows its widespread deployment in operators’ networks. In this paper, we explore several machine learning approaches for soft-failure ... -
Learning from the optical spectrum: soft-failure identification and localization
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe availability of coarse-resolution cost-effective Optical Spectrum Analyzers (OSA) allows its widespread deployment in operators' networks. In this paper, several machine learning approaches for failure identification ... -
Man-in-the-middle attacks through re-shaping I-Q optical constellations
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Text en actes de congrés
Accés obertA module to re-shape optical constellations making the optical signal resembles as it has traversed some distance is presented. Armed with this module, Main-in-the-Middle attacks can be performed, which could be undetectable ... -
Minimum channel spacing in an ofdm cpfsk optical coherent system
(1998-03)
Article
Accés restringit per política de l'editorialChannel spacing in optical frequency-division multiplexed (OFDM) coherent optical systems with continuous-phase frequency-shift-keying (CPFSK) is obtained both theoretically and experimentally. The bit error ratio is derived ...
