Listar IC - Contribuciones a congresos científicos por título
Mostrando ítems 167-186 de 288
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Measuring odd- and even-mode propagation constants of coupled-lines by means of the lattice network
Hernández-Escobar, Alberto; Abdo-Sanchez, Maria Elena
; Esteban, Jaime; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos (2019-10-30)
A classic method for measuring the propagation constant of transmission lines is the one proposed by Bianco and Parodi more than four decades ago [1]. It is based on the invariance of the cross ratio of four complex numbers ... -
Medida y análisis del tráfico para el control inmersivo de Drones.
González, Nuria; Ruiz-Vega, Fernando Jesus; Solera-Delgado, Marta; Luna-Ramírez, Salvador; Toril-Genoves, Matias (2021-09)
Los vehículos aéreos no tripulados (UAV) han experimentado un creciente desarrollo como factores clave de nuevas aplicaciones en la actualidad, como los servicios vigilancia, control y rescate, la agricultura, la gestión ... -
Mejora de la calidad de experiencia en redes LTE multi-portadora
Gijón, Carolina; Marí-Altozano, María Luisa; Luna-Ramírez, Salvador; Toril-Genoves, Matias (2019-09-12)
In multi-tier cellular networks, effective handover schemes are required to assign users to the most adequate layer. In this paper, a data-driven strategy for traffic steering is proposed to improve the overall Quality of ... -
Metamaterial antenna array fed by distributed Bragg deflector for SOI platform
Ginel Moreno, Pablo; Hadij El-Houat, Abdelfettah; Sánchez-Postigo, Alejandro; Wanguemert-Perez, Juan Gonzalo; Molina-Fernandez, Iñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (2022)
We propose a distributed Bragg deflector working as a low loss (<0.3 dB) ultra compact beam expander, which generates an on chip Gaussian beam that illuminates a 1D array of 112 optical antennas with a length of 1.5 mm . ... -
Metamaterial engineered C+L band 90º hybrid with 150 nm feature size
Hadij-El-Houati, Abdelfettah; Halir, Robert; Ortega-Moñux, Alejandro; Wanguemert-Perez, Juan Gonzalo; Podmore, Hugh; Schmid, Jens H.; Cheben, Pavel; Molina-Fernandez, Iñigo[et al.] (2020-09-28)
90º hybrids are important components for coherent optical communications. Conventional implementations only cover the C band, while broadband, metamaterial-based devices require sub-100nm feature sizes. We propose a ... -
Método Basado en Multilateración para Geolocalización y Sincronización en Redes UMTS
García-Fernández, Juan Antonio; Jurado-Navas, Antonio; Fernández-Navarro, Mariano; Úbeda, Carlos (2014-09-16)
In this work, a method in order to jointly estimate the position of the different User Equipments (UEs) and the Relative Time Differences (RTDs) between base stations in UMTS networks is proposed. This method is based ... -
Método de Análisis Temporal para Root Cause Analysis en Redes Móviles
Troubleshooting encompasses a variety of processes required for the solution of mobile network degradations. These netwoks usually operate correctly, thanks to automatized processes of configuration and optimization, but ... -
Método de posicionamiento de drones LTE-5G para compensación de fallos en situaciones de emergencia
The failures resulting from cells outages or the partial loss of communications infrastructures make it impossible to serve users in the affected area. Such services would allow them to establish communication in order to ... -
Metodología de monitorización autónoma de redes móviles
Trujillo Saborido, José Antonio; De la Bandera Cascales, Isabel; Burgueño Romero, Jesús; Palacios, David; Barco-Moreno, Raquel (2021-09)
The fifth generation (5G) of mobile networks leads to novel services and heterogeneous scenarios that increase the complexity of management and orchestration tasks. In this context, Self-Organizing Networks (SON) are highly ... -
Mid-infrared Suspended Waveguide Platform and Building Blocks
Wanguemert-Perez, Juan Gonzalo; Sánchez-Postigo, Alejandro; Soler-Penades, Jordi; Ortega-Moñux, Alejandro; Nedeljkovic, Milos; Halir, Robert; El Mokhtari Mimun, Faysal; Cheng, Y.X.; Qu, Z; Khokhar, A.Z.; Osman, A.; Cao, W.; Litteljohns, C.G.; Cheben, Pavel; Mashanovich, G.Z.; Molina-Fernandez, Iñigo[et al.] (2018-06-05)
In this work we present our recent progress in the development of a platform for the mid-infrared wavelength range, based on suspended silicon waveguide with subwavelength metamaterial cladding. The platform has some ... -
Miniaturized top-metallized rectangular dielectric resonator antenna
Perez-Escribano, Mario; Herraiz Martínez, Francisco Javier; Márquez-Segura, Enrique (Sección Española de la Unión Científica Internacional de Radio, 2018-09)
In this paper, a modal analysis of a rectangular dielectric resonator antenna (DRA), with unconventional boundary conditions, is carried out. Analytical equations of the fields inside the resonator and simulations are ... -
Mitigating reflections in integrated gas sensors
Torres-Cubillo, Antonia; Wanguemert-Perez, Juan Gonzalo; Sánchez-Postigo, Alejandro; Molina-Fernandez, Iñigo; Halir, Robert (2022-09-07)
Optical gas sensing for environmental monitoring has become an active research topic in the last decade. Among the different optical sensing configurations, silicon photonic integrated sensors stand as a compact, ... -
Modelado de la calidad de experiencia del servicio para YouTube Live en redes inalámbricas
Jiménez, Luis Roberto; Solera-Delgado, Marta; Toril-Genoves, Matias; Oliver, Pablo (2017-10-06)
YouTube Live is one of the most popular services on the Internet, enabling an easy streaming of a live video with acceptable video quality. Thus, understanding user´s perception of this service is of the utmost importance ... -
Modelado de rendimiento de segmento en redes de acceso radio mediante aprendizaje supervisado
In 5G systems, the Network Slicing (NS) feature allows to deploy several logical networks customized for specific verticals over a common physical infrastructure. In the Radio Access Network (RAN), cellular operators need ... -
Modelado y Análisis de técnicas de acceso basadas en geolocalización para V2V
(2021-09-20)In this work, two geolocation-based access (GLOC) techniques for vehicular communications are presented and analyzed. These techniques, named Single-Lane Partition (SLP) and Multiple-Lane Partition (MLP) differ on the ... -
Modeling spectral changes in singing voice for pitch modification
Barbancho-Perez, Isabel; Santacruz, José L.; Tardon-Garcia, Lorenzo Jose; Barbancho-Perez, Ana Maria (2016-09-06)
We present an advanced method to achieve natural modifications when applying a pitch shifting process to singing voice by modifying the spectral envelope of the audio ex- cerpt. To this end, an all-pole spectral envelope ... -
Modelling asymmetric two-port reciprocal microwave structures by means of compact equivalent circuits
Abdo-Sanchez, Maria Elena; Martin-Guerrero, Teresa Maria; Esteban, Jaime; Camacho-Peñalosa, Carlos (2019)
Effective microwave systems design requires powerful and reliable modeling techniques. Today modern CAD tools provide such support from device physics to circuit level or from electromagnetics to system level. Nevertheless, ... -
Modelling Slice Performance in Radio Access Networks through Supervised Learning
In 5G systems, the Network Slicing (NS) feature allows to deploy several logical networks customized for specific verticals over a common physical infrastructure. To make the most of this feature, cellular operators need ... -
Modelo de evaluación de calidad de experiencia para servicios de vídeo inmersivo por LTE basado en drones
González, Nuria; Solera-Delgado, Marta; Ruiz-Vega, Fernando Jesus; Toril-Genoves, Matias; Gijón, Carolina (2022-09)
Several upcoming 5G and 6G services rely on Unmanned Aerial Vehicles (UAV) sending live data to other remote User Equipments (UEs) in Beyond Visual Line of Sight (BVLOS) scenarios. Thus, understanding the traffic flows ... -
Modelo no-lineal de diodo mediante el operador NFS y su implementación en herramienta CAD
García Luque, Aarón; Martin-Guerrero, Teresa Maria; Santarelli, Alberto; Camacho-Peñalosa, Carlos (2020-09-21)
The characterization of active devices is a key point when developing system-level design techniques. To this aim, an automatic quasi-static (QS) nonlinear model extraction technique for solid state devices by using the ...