Browsing by Subject "Optical fibers"
Now showing items 1-20 of 230
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1.3 µm SDN-enabled optical packet switch architecture for high performance and programmable data center network
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference report
Restricted access - publisher's policyWe demonstrate a 1.3 µm port-count scalable SDN-enabled optical packet switch architecture for programmable data-center networks. Experimental assessments of a 40Gb/s 4×4 switch system with SDN-control show <10-5 packet-loss ... -
15-dB differential link-loss UDWDM-PON with direct beat phase modulated DFBs
(2017-11-21)
Article
Open AccessIEEE A 15 dB differential link-loss ultra-dense wavelength division multiplexing passive optical network (UDWDM-PON) with two optical network units (ONU) spectrally spaced 6.25 GHz is experimentally implemented and tested. ... -
5G connected vehicles supported by optical fiber access
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policyFuture autonomous vehicle will require a high level of computation, communication, sensing and fast response actuation. Communication among vehicles, and vehicles to infrastructure, accessing to remote systems and services ... -
A column generation approach for large-scale RSA-based network planning
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Conference report
Restricted access - publisher's policyIn flexgrid-based optical networks, the problem of finding optimal route and spectrum allocation (RSA) for the demands in a traffic matrix becomes harder to solve than similar problems in fixed DWDM networks, mainly due ... -
A frequency approach on MIMO DSP for optical communication systems
(Universitat Politècnica de Catalunya, 2013-02-28)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement[ANGLÈS] Spatial Division Multiplexing (SDM) has arisen during the last years as the most promising technique to overcome the increasing necessity of capacity of the communication systems while avoiding the theoretical ... -
A latency-aware real-time video surveillance demo: network slicing for improving public safety
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessWe report the automated deployment of 5G services across a latency-aware, semi- disaggregated, and virtualized metro network. We summarize the key findings in a detailed analysis of end-to-end latency, service setup time, ... -
A multi-tenancy model based on resource capabilities and ownership for infrastructure management
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Conference report
Restricted access - publisher's policyThis paper presents a multi-tenancy model based on infrastructure resource capability virtualisation. The model, namely Resources, Ownership, Roles and Actors or RORA, approaches network and IT infrastructure virtualisation ... -
A novel distributed fiber-optic strain sensor
(2002-08)
Article
Restricted access - publisher's policyThe theory of operation of a fiber-optic-based strain sensor system, suitable for long structures, is described. The proposed sensor design is composed of several hundreds of sections separated by reflectors in order to ... -
A simple strategy to improve spectrum use in multi-rate flexgrid optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyA simple overprovisioning Spectrum Assignment strategy for flexgrid networks is demonstrated as efficient in terms of network throughput at a given blocking probability. Gain is obtained despite allocated spectrum exceeds ... -
A traffic intensity model for flexgrid optical network planning under dynamic traffic operation
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Conference report
Restricted access - publisher's policyWe obtain a model to estimate the highest traffic intensity that a flexgrid-based network can support in dynamic scenarios. A design problem is introduced to illustrate its application. Numerical results validate both ... -
Acotación de la probabilidad de error en un sistema de transmisión digital por fibra óptica
(1980)
Conference report
Open AccessDans ce papier, on a obtenu des bornes inférieure et supérieure de la probabilité d 'erreur par symbole dans un systemè de transmission numérique par Fibre Optique. Pour celà, nous avons employé une simplification de la ... -
Acotación rápida de la probabilidad de error en un sistema de transmisión digital por fibra óptica con símbolos no correlados
(Unión Científica Internacional de Radio (URSI), 1983)
Conference report
Open AccessThis paper deals with the problem of determinig an upper bound on the average conditional error probabilities in a digital optical fiber communication system with non-correlated symbols, in the presence of additive noise ... -
Adaptation of the application QUALIFO to communicate with the Photon Kinetics 8000 OTDR
(2010-12-01)
Article
Open AccessIn this paper we present the adaptation of QUALIFO, a software designed to assure and control the quality of optic fiber cables, to a new OTDR model, concretely the Photon Kinetics 8000. While the communication with the ... -
Adaptation of the residual signal for filter failure detection in scenarios with multiple filter types
(2019)
Conference report
Open AccessTo monitor the optical spectra of outgoing links, Optical Spectrum Analyzers (OSA) can deployed in the optical nodes acquiring the optical spectra of outgoing links and analyzing optical signals to detect ... -
Adaptive and iterative QoT estimator retraining for launch power optimization
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessWe dynamically optimize the transponders launch powers with iterative closed control loops. We close the loop after an adaptable number of algorithm’s intermediate calculations, to monitor and retrain the QoT estimator ... -
Adaptive loading algorithms for optical OFDM transmission systems
(Universitat Politècnica de Catalunya, 2011-07-20)
Bachelor thesis
Open Access -
After failure repair optimization in dynamic flexgrid optical networks
(The Optical Society (OSA), 2014)
Conference report
Restricted access - publisher's policyWe introduce the problem of reoptimizing the network after a link failure has been repaired as an effective way for reducing capacity usage and improving network performance. Numerical results show gains higher than 42%. -
Allocating multi-rate requests to single-rate lightpaths in Flexgrid optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policySome ideas about the effect of appropriately selecting the size of the connections conveyed by multi-rate flexgrid optical networks are discussed. The main focus is on illustrating the relation between spectrum consumption ... -
An Approach for Reduction of Cross-Talk in Multi-core Optical Fibers
(Springer, 2020-04-29)
Part of book or chapter of book
Restricted access - publisher's policyMulti-core fiber (MCF) is a practical approach to realize space division multiplexing for high-capacity transmission in optical communication system. However, a major impairment toward increasing core density to enhance ... -
Analysis of back-propagation and RF pilot-tone based nonlinearity compensation for a 9x224Gb/s POLMUX-16QAM system
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Conference report
Restricted access - publisher's policyWe investigate the joint implementation of back-propagation and RF-pilot tone for fiber nonlinear compensation in POLMUX-16QAM and show that the nonlinear tolerance is drastically improved when compared to OFDM system
