Browsing by Subject "Comunicacions òptiques"
Now showing items 1-20 of 783
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1Gb/s service planning on standard PON technologies
(2017-06)
Audiovisual
Open AccessTutorial impartit dins del marc del 2nd International Workshop on Elastic Networks Design and Optimisation (ELASTICNETS 2017). -
1Gbps full-duplex links for ultra-dense-WDM 6.25GHz frequency slots in optical metro-access networks
(2016-01-11)
Article
Open Access1Gbps full-duplex optical links for 6.25GHz ultra dense WDM frequency slots are demonstrated and optimized for cost-effective metro-access networks. The OLT-ONU downlinks are based on 1Gbps Nyquist-DPSK using MZM and ... -
25Gbps quasicoherent receiver for beyond NG-PON2 access networks
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policyA 25Gbps quasicoherent receiver with simple DSP has been experimentally validated for 25G access networks. It exhibits a sensitivity of -24. 7dBm after 20km SSMF and duobinary decoding and provides a power budget of 25. 7dB. -
5G transport network blueprint and dimensioning for a dense urban scenario
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyIn this paper, we provide a quantitative evaluation of the deployment aspects and dimensioning of the 5G transport architecture in a representative European city. In particular, we select an example dense urban city scenario ... -
7.5 Gb/s direct DFB phase modulation with 8-DPSK for 6.25 GHz spaced coherent UDWDM-PONs
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyWe demonstrate an 8-DPSK directly phase-modulated DFB with intradyne detection in a 50 km, 6.25 GHz channel spaced UDWDM-PON. A bit rate of 7.5 Gb/s is achieved with Rx sensitivity of -31 dBm at BER=10-3. -
A case of acquisition, transmission and use of information to control a manufacturing process
(Universitat Politècnica de Catalunya, 2009-10-08)
Master thesis
Open Access -
A Comparison of Nonlinear Media for All-Optical Signal Processing
(Universitat Politècnica de Catalunya / Technical University of Denmark. Fotonik Department / Politecnico di Torino. Dipartimento di elettronica, 2013-07-31)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Politecnico di Torino[ANGLÈS] This thesis is focused on benchmarking different nonlinear media that are currently used for all-optical signal processing. The materials survey has been based on both low linear losses and highly nonlinear ... -
A control and management architecture supporting autonomic NFV services
(2019-02)
Article
Open AccessThe proposed control, orchestration and management (COM) architecture is presented from a high-level point of view; it enables the dynamic provisioning of services such as network data connectivity or generic network slicing ... -
A Convex Decomposition Perspective on Dynamic Bandwidth Allocation and Applications
(Universitat Politècnica de Catalunya, 2008-09-23)
Doctoral thesis
Open AccessTradicionalment, les tècniques d'accés múltiple en sistemes de comunicacions multi-usuari han estat desenvolupades o bé orientades a la connexió o bé orientades al tràfic. En el primer cas, l'objectiu és establir tants ... -
A feedback-based hybrid OBS/OCS architecture with fast-over-slow capability
(2011)
Conference lecture
Open AccessDynamic bandwidth allocation in response to the bandwidth requirements of new emerging applications is an essential demand for future optical networks. Hybrid switching architectures combining the benefits of different ... -
A fully SDN enabled all-optical architecture for data centre virtualisation with time and space multiplexing
(Institute of Electrical and Electronics Engineers (IEEE), 2018-07-01)
Article
Open AccessVirtual Data Centre (VDC) solutions provide an environment that is able to quickly scale-up and where virtual machines and network resources can be quickly added on-demand through self-service procedures. VDC providers ... -
A GMPLS/OBS network architecture enabling QoS-aware end-to-end burst transport
(2010-07-01)
Research report
Open AccessThis paper introduces a Generalized Multi-Protocol Label Switching (GMPLS)-enabled Optical Burst Switched (OBS) network architecture featuring end-to-end QoS-aware burst transport services. This is achieved by setting up ... -
A hybrid packet/circuit optical transport architecture for DCN
(2019)
Conference report
Open AccessThe aim of this paper is to move away from today's multi-tier, manually operated, and performance limited Data Centre Network (DCN) towards more scalable, flexible, and optimized architecture of tomorrow. We propose a new ... -
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 multiobjective wavelength routing approach combining network and traffic engineering with energy awareness
(2017-12-01)
Article
Open AccessIn modern optical networks, infrastructure management is faced with the challenge of using expensive equipment and communication resources as efficiently as possible. This now includes keeping power consumption costs at a ... -
A novel impairment aware RWA algorithm with consideration of QoT estimation inaccuracy
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011-04)
Article
Restricted access - publisher's policyIn all-optical networks the physical layer impairments accumulate along a lightpath and also vary dynamically, and a number of impairment aware routing and wavelength assignment (IA-RWA) techniques have been proposed in ... -
A novel predictive PCE-based protection strategy for resilient transport networks
(2015-11-21)
Article
Open Access© 2016. The ever increasing requirements of new Internet applications are pushing to optimize the design of optical networks. A key design criterion in network design is the ability to recover from failures in an agile and ... -
A novel SDN enabled hybrid optical packet/circuit switched data centre network: the LIGHTNESS approach
(2014)
Conference report
Restricted access - publisher's policyCurrent over-provisioned and multi-tier data centre networks (DCN) deploy rigid control and management platforms, which are not able to accommodate the ever-growing workload driven by the increasing demand of ... -
A novel wake-up communication system using solar panel and visible light communication
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Restricted access - publisher's policyOne of the most promising energy-efficient communication methods is the use of wake-up receivers. In this paper, we propose and develop a novel wake-up communication system that uses Visible Light Communication (VLC) and ... -
A P4-based SDN architecture for passive optical networks
(Universitat Politècnica de Catalunya, 2021-07-15)
Bachelor thesis
Restricted access - confidentiality agreement