Listar IC - Artículos por título
Mostrando ítems 21-40 de 182
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Adaptive selective relaying in cooperative free-space optical systems over atmospheric turbulence and misalignment fading channels
Boluda-Ruiz, Rubén
; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen (Optica Publishing Group, 2014)
In this paper, a novel adaptive cooperative protocol with multiple relays using detect-and-forward (DF) over atmospheric turbulence channels with pointing errors is proposed. The adaptive DF cooperative protocol here ... -
Adaptive SOVA for 3GPP-LTE Receivers
Blánquez-Casado, Francisco; Martín-Vega, Francisco-Javier; Morales-Jiménez, David; Gómez-Paredes, Gerardo; Entrambasaguas-Muñoz, José Tomás (IEEE Xplore, 2014-06)
Turbo codes are extensively used in wireless communication systems and have been adopted as the channel coding scheme for next generation cellular standards. The complexity associated with the decoding process is an important ... -
Add/Drop Mode-Division Multiplexer Based on a Mach–Zehnder Interferometer and Periodic Waveguides.
Pérez-Galacho, Diego; Marris-Morini, Delphine; Ortega-Moñux, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Vivien, Laurent (IEEE, 2015)
Mode-division multiplexing (MDM) is currently under study due to its potential to further increase data rates in optical communication circuits. In this paper, we propose an add/drop MDM for the first- and second-order ... -
An educational tool for understanding MPEG‐2 video compression and coding techniques
The understanding of the video encoding/decoding processes is a key skill for students of computer science, engineering, or telecommunications, especially those specialized in multimedia. The special characteristics of the ... -
An enhanced symmetric-key based 5G-AKA protocol
Munilla-Fajardo, Jorge; Burmester, Mike; Barco-Moreno, Raquel (Elsevier, 2021)
5G technology is called to support the next generation of wireless communications and realize the “Internet of Everything” through its mMTC (massive Machine-Type-Communications) service. The recently standardized 5G-AKA ... -
An equivalent-circuit topology for lossy non-symmetric reciprocal two-ports
Hernández-Escobar, Alberto; Abdo-Sánchez, María Elena; Mateos-Ruiz, Pablo; Esteban, Jaime; Martín-Guerrero, Teresa María; Camacho-Peñalosa, Carlos[et al.] (IEEE Journal of Microwaves, 2021-07)
An equivalent-circuit topology for two-port lossy non-symmetric reciprocal networks is proposed. The circuit topology is based on the eigenstate decomposition. The proposed circuit consists of two immittances and two ... -
An Extension of the κ -μ Shadowed Fading Model: Statistical Characterization and Applications.
Ramírez Espinosa, Pablo; López-Martínez, Francisco Javier; París-Ángel, José Francisco; Yacoub, Michel Daoud; Martos-Naya, Eduardo (IEEE, 2017-12-25)
We here introduce an extension and natural generalization of both the κ-μ shadowed and the classical Beckmann fading models: the Fluctuating Beckmann (FB) fading model. This new model considers the clustering of multipath ... -
An Extensive Validation of a SIR Epidemic Model to Study the Propagation of Jamming Attacks against IoT Wireless Networks.
Lopez Delgado, Miguel; Peinado-Domínguez, Alberto; Ortiz-García, Andrés (Elsevier, 2019-10-21)
This paper describes the utilization of an epidemic approach to study the propagation of jamming attacks, which can affect to different communication layers of all nodes in a variety of Internet of Things (IoT) ... -
An ultracompact GRIN lens based spot size converter using subwavelength grating metamaterials
Luque-González, José Manuel; Halir, Robert; Wanguemert-Pérez, Juan Gonzalo; De-Oliva-Rubio, José; Schmid, Jens H.; Cheben, Pavel; Molina-Fernández, Íñigo; Ortega Moñux, Alejandro[et al.] (Wiely, 2019)
Graded-index materials offer virtually complete control over light propagation in integrated photonic chips but can be challenging to implement. Here, an anisotropic graded-index metamaterial, synthesized with fully etched ... -
Analytical design of compact multiband bandpass filters with multiconductor transmission lines and shunt open stubs
Pérez-Escribano, Mario; Márquez-Segura, Enrique; Sánchez-Martínez, Juan José (MDPI, 2023-04-24)
A compact topology for implementing compact multiband bandpass filters is presented in this paper. To achieve the desired frequency response, two identical short-circuited multiconductor transmission lines (MTLs) and ... -
Analytical Framework to Model Reconfigurable Metasurfaces including Lumped Elements.
Pérez-Escribano, Mario; Moreno-Rodríguez, Salvador; Molero, Carlos; Valenzuela-Valdés, Juan Francisco; Padilla, Pablo; Alex-Amor, Antonio; Pérez-Escribano, Mario[et al.] (IEEE Transactions on Circuits and Systems II: Express Briefs, 2023-11-06)
This manuscript introduces an analytical framework for the design of reconfigurable metasurfaces rooted in 2D periodic structures. Incorporating lumped elements into the model streamlines the design process for such devices, ... -
Applications of the Internet of Medical Things to Type 1 Diabetes Mellitus
(IOAP-MDPI, 2023-02-02)Type 1 Diabetes Mellitus (DM1) is a condition of the metabolism typified by persistent hyperglycemia as a result of insufficient pancreatic insulin synthesis. This requires patients to be aware of their blood glucose level ... -
Assessing Functional Brain Network Dynamics in Dyslexia From fNIRS Data
Gallego-Molina, Nicolás J.; Ortiz-García, Andrés; Martínez-Murcia, Francisco Jesús; Rodríguez-Rodríguez, Ignacio; Luque-Vilaseca, Juan Luis (World Scientific, 2023-01-09)
Developmental dyslexia is characterized by a deficit of phonological awareness whose origin is related to atypical neural processing of speech streams. This can lead to differences in the neural networks that encode audio ... -
Assessing Physical Activity and Functional Fitness Level Using Convolutional Neural Networks.
Galán Mercant, Alejandro; Ortiz-García, Andrés; Herrera Viedma, Enrique; Tomas, Maria Teresa; Fernandes, Beatriz; Moral-Muñoz, Jose A.[et al.] (Elsevier, 2019-12-01)
Older adults are related to a reduction in physical functionality, as a result of a musculoskeletal system degeneration. In that way, physical exercise has been stated as a suitable intervention to prevent such health ... -
Asymptotically Exact Approximations for the Symmetric Difference of Generalized Marcum-Q Functions
López-Martínez, Francisco Javier; Romero-Jerez, Juan Manuel; López-Martínez, Francisco Javier (IEEE, 2015)
In this paper, we derive two simple and asymptotically exact approximations for the function defined as ΔQm(a, b) =Δ Qm(a, b) - Qm(b, a). The generalized Marcum Q-function Qm(a, b) appears in many scenarios in communications ... -
Automatic alarm prioritization by data mining for fault management in cellular networks.
García, Antonio; Toril-Genovés, Matías; Oliver, Pablo; Luna-Ramírez, Salvador; Ortiz, Manuel (Elsevier, 2020-05-30)
Network management systems play an important role to deal with the large size and complexity of current cellular networks. Thus, operators and vendors focus much of their efforts on developing new techniques and tools for ... -
Automatic Extraction of Measurement-Based Large-Signal FET Models by Nonlinear Function Sampling.
Martín-Guerrero, Teresa María; Santarelli, Alberto; Gibiino, Gian Piero; Traverso, Pier Andrea; Camacho-Peñalosa, Carlos; Filicori, Fabio[et al.] (IEEE, 2020-03-27)
A new method is proposed for the accurate experimental characterization and fully automated extraction of compact nonlinear models for Field-Effect Transistors (FETs). The approach, which leads to a charge-conservative ... -
Automatic Feature Selection Technique for Next Generation Self-Organizing Networks
Palacios, David; De la Bandera Cascales, Isabel; Gómez-Andrades, Ana; Flores, Lydia; Barco-Moreno, Raquel (IEEE, 2018)
Despite self-organizing networks (SONs) pursue the automation of management tasks in current cellular networks, the selection of the most useful performance indicators (PIs), used as inputs for SON functions, is still ... -
Automatic Staff Reconstruction within SIMSSA Project.
Tardón-García, Lorenzo José; Barbancho-Pérez, Isabel; Barbancho-Pérez, Ana María; Fujinaga, Ichiro (MDPI, 2020-04-03)
The automatic analysis of scores has been a research topic of interest for the last few decades and still is since music databases that include musical scores are currently being created to make musical content available ... -
Autosomal Dominantly Inherited Alzheimer Disease: Analysis of genetic subgroups by Machine Learning.
Castillo-Barnes, Diego; Li, Su; Ramírez-Aguilar, Francisco Javier; Salas-González, Diego; Martínez-Murcia, Francisco Jesús; Álvarez-Illán, Ignacio; Segovia, Fermín; Ortiz-García, Andrés; Cruchaga, Carlos; Farlow, Martin R.; Xiong, Chengjie; Graff-Radford, Neil R.; Schofield, Peter R.; Masters, Colin L.; Salloway, Stephen; Jucker, Mathias; Mori, Hiroshi; Levin, Johannes; Górriz-Sáez, Juan Manuel[et al.] (Elsevier, 2020-01-07)
Despite subjects with Dominantly-Inherited Alzheimer’s Disease (DIAD) represent less than 1% of all Alzheimer’s Disease (AD) cases, the Dominantly Inherited Alzheimer Network (DIAN) initiative constitutes a strong impact ...