Listar IC - Contribuciones a congresos científicos por título
Mostrando ítems 227-246 de 288
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A QoE-driven traffic steering algorithm for LTE Networks
Marí-Altozano, María Luisa; Luna-Ramírez, Salvador
; Gijón, Carolina; Toril-Genoves, Matias (2019-01-31)
Due to the huge increase in traffic and services in mobile networks, network management has changed its main focus from Quality of Service (QoS) to a Quality of Experience (QoE) perspective. In addition, SON (Self Organizing ... -
Radio interference analysis tool based on GNU Radio
Yébenes Gálvez, José Antonio; Martos-Naya, Eduardo; Aguayo-Torres, Maria del Carmen; Cárdenas-Angelat, Carlos; Baños-Polglase, Juana Daphne (2019-10-30)
Avoiding interference is one of the main challenges in radio communications. Interference hunting is usually done with costly instruments. In this work, a cost efficient portable tool is described for interference analysis ... -
Ranura de Banda Ancha en Doble T Sobre Cavidad para Arrays Alimentados en Serie
A previous radiating element for series-fed arrays proposed by the authors and based on a Cavity-Backed Slot (CBS) is modified to improve its bandwidth. In order to do that, the slot is modified to reduce its resonance ... -
Re-inventing Multimode Interference Couplers Using Subwavelength Gratings
Ortega-Moñux, Alejandro; Halir, Robert; Maese Novo, Alejandro; Alonso-Ramos, C.; Zavargo-Peche, Luis; Perez-Galacho, Diego; Molina-Fernandez, Iñigo; Wanguemert-Perez, Juan Gonzalo; Cheben, Pavel; Schmid, Jens H.; Lapointe, J.; Xu, D.; Janz, Siegfried[et al.] (European Physical Society, IEEE, The Optical Society, 2013)
We use the concept of subwavelength grating (SWG) refractive-index-engineering to propose and experimentally demonstrate a reduced size, slotted 2x2 MMI coupler. We also present an ultra-broadband 2x2 MMI coupler which ... -
Real-time audio interaction in serious games for music learning
In this LBD, we present several Apps for playing while learning music or for learning music while playing. The core of all the games is based on the good performance of the real-time audio interaction algorithms developed ... -
Receptor coherente integrado ‘colorless’ de gran margen dinámico basado en un acoplador a 120º
Un receptor ‘colorless’ requerirá en su banda de operación de un elevado rechazo en modo común CMRR para reducir eficientemente la interferencia en banda base ocasionada por los canales colindantes al detectado y conseguir ... -
Recognizing complex gestures via natural interfaces
Poncela-Gonzalez, Javier; Ben Abdelmoumen, Houda (2018-04-02)
Natural interfaces have revolutionized the way we interact with computers. They have provided in many fields a comfortable and efficient mechanism that requires no computer knowledge, nor artificial controlling devices, ... -
Reparto de tráfico basado en métricas de rendimiento en escenarios con multiconectividad
Burgueño Romero, Jesús; De la Bandera Cascales, Isabel; Palacios, David; Barco-Moreno, Raquel (2019-10-30)
Multi-connectivity (MC) is one of the most relevant features to be introduced in 5G networks, allowing users to simultaneously aggregate radio resources from several network nodes to improve both reliability and data rates. ... -
Resilient RFID Grouping Proofs with Missing Tag Identification
Burmester, Mike; Munilla-Fajardo, Jorge (Springer, 2016)
The adoption of RFID (Radio Frequency Identification) technology has greatly improved the efficiency of inventory control, supply-chain management and logistics. With RFID group scanning, an RFID reader scans a group of ... -
Reutilización Fraccional de Frecuencia con Sectorización sobre Redes Celulares
(2017-09-06)In this paper, we investigate the downlink of homogeneous LTE cellular networks with Fractional Frequency Reuse (FFR) and sectorized antennas where non-ideal radiation patterns have been considered. Three frequency allocation ... -
Robust and tunable integrated polarization rotator
Alonso-Ramos, C.; Halir, Robert; Ortega-Moñux, Alejandro; Cheben, Pavel; Vivien, Laurent; Molina-Fernandez, Iñigo; Marris-Morini, Delphine; Janz, Siegfried; Xu, Danxia; Schmid, Jens[et al.] (2014-03-11)
Integrated polarization rotators suffer from very high sensitivity to fabrication errors. A polarization rotator scheme that substantially increases fabrication tolerances is proposed. In the proposed scheme, two tunable ... -
Sampling Frequency Error Estimators for PRIME v1.4 systems
Giménez, Javier; Cortes-Arrabal, Jose Antonio; Sanz, Alfredo; Díez-del-Río, Luis (2020-07-02)
The performance of PRIME v1.4 systems might be severely degraded by a sampling frequency offset (SFO). This work addresses the problem of the SFO estimation by means of the pilots transmitted in the header and payload ... -
Secure Distributed System inspired by Ant Colonies for Road Traffic Management in Emergency Situations
Peinado-Dominguez, Alberto; Ortiz-Garcia, Andres; Munilla-Fajardo, Jorge (2013-09-04)
In this work, we present a distributed system designed for road traffic management. The system is inspired by the behavior of the ant colonies. The distributed design responds to the particular limitations of an emergency ... -
Selección automática de características para una gestión proactiva eficiente de redes 5G
Mendoza, Jessica; Palacios, David; De la Bandera Cascales, Isabel; Barco-Moreno, Raquel (2019-10-30)
The growth in the number of services, functionalities and users expected with the arrival of the 5th Generation (5G) of mobile communications networks will produce an increase in the complexity of the network management ... -
Selección Dinámica de Celda en los Enlaces Ascendente y Descendente de Redes Heterogéneas: Estudio de las Estratégias Acoplada y Desacoplada
Dynamic cell selection (DCS) and decoupled access are two disruptive candidate schemes for cell association in future 5G networks. DCS provides adaptation to fast channel variations, which results in potential performance ... -
Self-organized Routing For Radial Underwater Networks
Poncela-Gonzalez, Javier (2016-11-29)
Due to significant propagation delay of acoustic waves in underwater communication, terrestrial routing protocols are not applicable for UWSN. To overcome this problem, some routing protocols have been proposed for UWSN ... -
Separador de polarización integrado de altas prestaciones basado en estructuras sub-longitud de onda
Luque-González, José Manuel; Herrero-Bermello, Alaine; Ortega-Moñux, Alejandro; Sánchez-Rodriguez, Marina; Velasco, Aitor V.; Schmid, Jens H.; Cheven, Pavel; Molina-Fernandez, Iñigo; Halir, Robert[et al.] (2020-12-03)
Polarization management is a key factor in photonics integration platforms with high birefringence such as Silicon-On- Insulator. Here we design a directional coupler polarization beam splitter composed of two subwavelength ... -
Silicon high performance devices using subwavelength structures
Halir, Robert; Sánchez-Postigo, Alejandro; Luque-González, José Manuel; Herrero-Bermello, Alaine; Leuermann, Jonas; Ortega-Moñux, Alejandro; Wanguemert-Perez, Juan Gonzalo; Velasco, Aitor V.; De-Oliva-Rubio, Jose; Schmid, Jens H.; Cheben, Pavel; Soler-Penades, Jordi; Nedeljkovic, Milos; Mashanovich, Goran Z.; Molina-Fernandez, Iñigo[et al.] (2019-03-13)
Silicon photonics is poised to solve challenges in areas such as datacom, environmental monitoring and diagnostics, by leveraging the economies of scale afforded by CMOS manufacturing. This requires a wide variety of ... -
Silicon-on-insulator polarization controller with relaxed fabrication tolerances
Sarmiento-Merenguel, J.D; Alonso-Ramos, C.; Halir, Robert; Vivien, L.; Cheben, Pavel; Ortega-Moñux, Alejandro; Molina-Fernandez, Iñigo; Leroux, X.; Marris-Morini, Delphine; Xu, D.X.; Schmid, J.H.; Janz, Siegfried[et al.] (2014-07-31)
Polarization control is essential in applications ranging from optical communications to interferometric sensors. The implementation of in- tegrated polarization controllers is challenging as they require polariza- tion ... -
Simulador de dispositivos SLM basados en cristal líquido
Gallego-Molina, Nicolás J.; Puerta-Notario, Antonio; Castillo-Vazquez, Miguel; Garrido-Balsells, José María (2018-09-27)
En este trabajo, se presenta un simulador de modulación de fase espacial para su uso en comunicaciones ópticas de espacio libre. El simulador está basado en dispositivos TNLCD (Twisted Nematic Liquid Crystal Display). En ...