GCO - Grup de Comunicacions Òptiques: Recent submissions
Now showing items 1-12 of 600
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Asymmetrical clipping optical filter bank multi-carrier modulation scheme
(2021-05)
Article
Restricted access - publisher's policyFilter bank multi-carrier (FBMC) is considered a promising alternative to the Orthogonal Frequency Division Multiplexing (OFDM) scheme. It improves spectral efficiency by eliminating the need for cyclic prefix while ... -
Machine learning assisted EDFA gain ripple modelling for accurate QoT estimation
(The Institution of Engineering and Technology, 2019)
Conference report
Open AccessWavelength dependent EDFA gain ripple has an impact on connection's OSNR performance. We propose a machine learning regression model to estimate the end to end gain ripple penalty and to increase QoT estimation accuracy. -
Quality of transmission estimator retraining for dynamic optimization in optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2021-04-01)
Article
Restricted access - publisher's policyOptical network optimization involves an algorithm and a physical layer model (PLM) to estimate the quality of transmission of connections while examining candidate optimization operations. In particular, the algorithm ... -
Data plane elements for optical performance monitoring agnostic to the modulation format for disaggregated optical networks
(2020)
Conference report
Open AccessIn this paper, data plane alternatives for optical performance monitoring are presented as enablers to address the key challenges in disaggregated optical networks. In fact, a key element of the disaggregated networks is ... -
Spectral processing techniques for efficient monitoring in optical networks
(Institute of Electrical and Electronics Engineers (IEEE), 2021-07-01)
Article
Restricted access - publisher's policyHaving ubiquitous optical monitors in dense wavelength-division multiplexing (DWDM) or flex-grid networks allows the estimation in real time of crucial parameters. Such monitoring would be even more important in disaggregated ... -
Flexible resource provisioning of polarization independent coherent PONs based on non-orthogonal multiple access and multiCAP modulation
(Institute of Electrical and Electronics Engineers (IEEE); Optical Society of America, 2021-07)
Article
Restricted access - publisher's policyA combined non-orthogonal multiple access (NOMA) and multiband carrierless amplitude and phase modulation (multiCAP) scheme is proposed for flexible resource provisioning in coherent passive optical networks (PONs). While ... -
Experimental assessment of SDN-enabled sliceable OPSquare data center network with deterministic QoS
(2019)
Conference report
Restricted access - publisher's policyAn SDN-enabled sliceable DCN with deterministic QoS guarantees is experimentally assessed. Flow priorities are dynamically assigned to each network-slice to prevent statistical latency and packet-loss due to packet ... -
SDN-enabled reconfigurable optical data center network with automatic network slicing to provision dynamic QoS
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Conference report
Restricted access - publisher's policyAn SDN-controlled optical DCN enabling automatic QoS-driven network-slice provisioning, reconfiguration and flow-priority updating is demonstrated for the first-time. Network-slice reconfigurations with guaranteed QoS based ... -
Autonomous and energy efficient lightpath operation based on digital subcarrier multiplexing
(2021-03-09)
Article
Open AccessThe massive deployment of 5G and beyond will require high capacity and low latency connectivity services, so network operators will have either to overprovision capacity in their transport networks or to upgrade the optical ... -
High capacity converged passive optical network and RoF-based 5G+ fronthaul using 4-PAM and NOMA-CAP signals
(Institute of Electrical and Electronics Engineers (IEEE), 2021-01-15)
Article
Open AccessNetwork architectural changes to satisfy all the 5G+ mobile network specifications and requirements are necessary due to the popularization of streaming and cloud applications on omnipresent portable devices. The combination ... -
Enabling service provisioning and quality maintenance in sliceable optical networks
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Conference report
Restricted access - publisher's policyFuture 5G and beyond services rely on the network slicing concept, in which underlying network elements are split and/or aggregated to compose a synthetic network infrastructure (the slice) to satisfy the requirements of ... -
ZIZO: A Zoom-In Zoom-Out mechanism for minimizing redundancy and saving energy in wireless sensor networks
(2021-02-01)
Article
Open AccessIn modern life, there is invisible data being continuously generated, data that if collected and processed can detect risks and changes and enable us to mitigate their effect. Thus, there is an essential need to sense ...
