Listar IC - Contribuciones a congresos científicos por título
Mostrando ítems 266-285 de 292
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Subwavelength-engineered metamaterial devices for integrated photonics
Sanchez-Postigo, Alejandro; Ginel-Moreno, Pablo; Pereira-Martín, Daniel; Hadij-El-Houati, Abdelfettah; Luque-González, José Manuel; Pérez-Armenta, Carlos; Wanguemert-Perez, Juan Gonzalo
; Ortega-Moñux, Alejandro; Halir, Robert; Schmid, Jens H.; Soler-Penades, Jordi; Nedeljkovic, Milos; Ye, Winnie N.; Mashanovich, Goran Z.; Cheben, Pavel; Molina-Fernandez, Iñigo[et al.] (2022)
The engineering of subwavelength grating metamaterials has become an essential design strategy in silicon photonics. The lithographic segmentation of integrated waveguides at the subwavelength scale enables the synthesis ... -
Subwavelength-grating metamaterial integrated devices for the near- and mid-infrared wavelengths
Sanchez-Postigo, Alejandro; Wanguemert-Perez, Juan Gonzalo; Ortega-Moñux, Alejandro; Halir, Robert; Pereira-Martín, Daniel; Luque-González, José Manuel; Schmid, Jens H.; Wang, Shurui; Vachon, Martin; Xu, Dan-Xia; Soler-Penades, Jordi; Nedeljkovic, Milos; Mashanovich, Goran Z.; Cheben, Pavel; Molina-Fernandez, Iñigo[et al.] (2021)
The subwavelength patterning of planar structures is now widely used in silicon photonics, enabling the synthesis of metamaterials with engineered optical properties, including refractive index, dispersion, and anisotropy. ... -
Suspended silicon integrated platform for the long-wavelength mid-infrared band
Sanchez-Postigo, Alejandro; Wanguemert-Perez, Juan Gonzalo; Soler-Penades, Jordi; Ortega-Moñux, Alejandro; Nedeljkovic, Milos; Halir, Robert; El Mokhtari Mimun, Faysal; Qu, Zhibo; Khokhar, Ali Z; Osman, Ahmed; Cao, Wei; Littlejohns, Callum G.; Mashanovich, Goran Z.; Cheben, Pavel; Molina-Fernandez, Iñigo[et al.] (2019-07-18)
The atmospheric-transmission window and the fingerprint region of many substances overlaps with the long-wave infrared band. This has enabled the emergence of a new path for photonic integrated circuits, which could exploit ... -
Systemic comparison of dielectric and plasmonic biosensors on a silicon photonics platform
Sánchez-Ramírez, Ana; Luque-González, José Manuel; Wanguemert-Perez, Juan Gonzalo; Molina-Fernandez, Iñigo (2022)
Plasmonic and dielectric based waveguides are widely used for biosensing applications. However, the use of different sensing architectures and platforms hinders the fair comparison of their respective figures of merit. In ... -
Temporal phase synchrony disruption in dyslexia: anomaly patterns in auditory processing
Formoso Trigo, Marco Antonio; Ortiz-Garcia, Andres; Martınez Murcia, Francisco J.; Aquino Brıtez, Diego; Escobar, Juan José; Luque-Vilaseca, Juan Luis[et al.] (2022)
The search for a dyslexia diagnosis based on exclusively objective methods is currently a challenging task. Usually, this disorder is analyzed by means of behavioral tests prone to errors due to their subjective nature; ... -
The Complementary Strip-Slot: From the Unit-Cell of Artificial Transmission Lines to the Basic Element of Novel Antennas
Abdo-Sánchez, Maria Elena; Esteban Marzo, Jaime; Martin-Guerrero, Teresa Maria; Page de la Vega, Juan Enrique; Camacho-Peñalosa, Carlos (2014-09-11)
The complementary strip-slot radiating element and its applications are reviewed. The element is a modified version of the conventional microstrip-fed slot that presents very broad matching. Its inherent lattice equivalent ... -
The dynamics of user channels in massive MIMO systems
Martos-Naya, Eduardo; Lopez-Martinez, F. Javier; Paris-Angel, Jose Francisco; Goldsmith, Andrea (2014-10-31)
The SNR associated with the different users in large-scale MIMO systems depends on the magnitude of the eigenvalues of the channel power matrix HH H. While it is known that the spread between the best and worst channels ... -
The Fluctuating Two-Ray Fading Model for mmWave Communications
Romero-Jerez, Juan Manuel; Lopez-Martinez, F. Javier; Paris-Angel, Jose Francisco; Goldsmith, Andrea (IEEE, 2016)
We introduce the Fluctuating Two-Ray (FTR) fading model, a new statistical channel model that consists of two fluctuating specular components with random phases plus a diffuse component. The FTR model arises as a natural ... -
The importance of F0 tracking in query-by-singing-humming
In this paper, we present a comparative study of several state-of-the-art F0 trackers applied to the context of query-by-singing-humming (QBSH). This study has been carried out using the well known, freely available, ... -
Theoretical consideration on harmonic manipulated amplifiers based on experimental data
Raffo, Antonio; Colantonio, Paolo; Cipriani, Elisa; Vadala, Valeria; Bosi, Gianni; Martin-Guerrero, Teresa Maria; Vannini, Giorgio; Giannini, Franco[et al.] (2015-10-07)
This contribution aims at the experimental confirmation of the advantages of the harmonic manipulation theory, using a low-frequency low-cost characterization setup. A 0.5-μm 10x100-μm (1-mm gate periphery) GaN HEMT has ... -
Throughput-based quality adaptation for DASH in 5G mobile networks
Gomez-Paredes, Gerardo; Aguayo-Torres, María del Carmen; Entrambasaguas-Muñoz, José Tomás; Aguilar-Armijo, Jesús; Vaca-Rubio, Cristian J. (2019-09-10)
Video streaming in mobile networks is currently the most widely used service and its usage is expected to grow exponentially in the next years. Due to the changing conditions of the radio interface, techniques likes Dynamic ... -
Throughput-based quality adaptation for DASH in 5G mobile networks
Aguilar-Armijo, Jesús; Vaca-Rubio, Cristian J.; Gomez-Paredes, Gerardo; Aguayo-Torres, María del Carmen; Entrambasaguas-Muñoz, José Tomás (2019-07-24)
Video streaming in mobile networks is currently the most widely used service and its usage is expected to grow exponentially in the next years. Due to the changing conditions of the radio interface, techniques likes Dynamic ... -
Time-dependent KPI generation based on Copula
Luo Chen, Hao Qiang; Álvarez-Merino, Carlos Simón; Khatib, Emil J.; Barco-Moreno, Raquel (2020-09-18)
New generations of mobile networks are developed to serve the increasing user and devices connected to the networks. However, the management of these networks has a need of automation, due to the also growing complexity. ... -
Towards photonic biosensing using a three-port mach-zehnder interferometer in a silicon nitride platform
Leuermann, Jonas; Fernández-Gavela, Adrián; Lechuga, Laura M.; Sanchez-Postigo, Alejandro; Molina-Fernandez, Iñigo; Halir, Robert[et al.] (2018-06-28)
Integrated photonics enables sensitive and label-free optical biosensors for the detection of chemical and biological substances and is therefore promising for future lab-on-chip solutions. In this article we present our ... -
A Tractable Line-of-Sight Product Channel Model: Application to Wireless Powered Communications
Lopez-Martinez, F. Javier; Moreno-Pozas, Laureano; Fernández-Plazaola, Unai; Paris-Angel, Jose Francisco; Martos-Naya, Eduardo; Romero-Jerez, Juan Manuel[et al.] (2018-07-30)
We here present a general and tractable fading model for line-of-sight (LOS) scenarios, which is based on the product of two independent and non-identically distributed κ- μ shadowed random variables. Simple closed-form ... -
Ultra-broadband polarization beam splitter with a gradual anisotropy engineered subwavelength metamaterial
Luque-González, José Manuel; Halir, Robert; Wanguemert-Perez, Juan Gonzalo; Schmid, Jens H.; Cheben, Pavel; Molina-Fernandez, Iñigo; Ortega-Moñux, Alejandro[et al.] (2022-06)
In this work we propose a polarization beam splitter based on an advanced SWG metamaterial topology which controls the propagation of multiple TE and TM modes at the same time. The proposed device achieves a simulated ... -
Ultra-broadband Silicon Photonic Multimode Interference Coupler
Halir, Robert; Cheben, Pavel; Luque-González, José Manuel; Sarmiento-Merenguel, Jose Darío; Schmid, Jens H.; Wanguemert-Perez, Juan Gonzalo; Xu, Dan-Xia; Wang, Shurui; Ortega-Moñux, Alejandro; Molina-Fernandez, Iñigo[et al.] (ECIO, 2017)
In integrated optics, multimode interference couplers (MMIs) are used as light-wave splitters and combiners in a wide variety of devices ranging from spectrometers to sensors and coherent optical receivers. While their ... -
Un nuevo criterio basado en calidad de experiencia para el balance de carga en redes LTE
Gijón, Carolina; Luna-Ramírez, Salvador; Toril-Genoves, Matias (2018-09-19)
The increase in traffic and services in mobile networks has made network management a very complex task. This fact has motivated the development of many algorithms in a Self-Organized Network (SON) framework, such as ... -
Una visión basada en QoE para algoritmo MRO en redes LTE
Marí-Altozano, María Luisa; Mwanje, Stephen S.; Luna-Ramírez, Salvador; Toril-Genoves, Matias; Gijón, Carolina (2020-09-11)
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 ... -
Understanding the impact of line-of-sight in the ergodic spectral efficiency of cellular networks
Garcia-Corrales, Celia; Martín-Vega, Francisco J.; Lopez-Martinez, F. Javier; Cañete-Corripio, Francisco Javier; Paris-Angel, Jose Francisco (2018-09-27)
In this paper we investigate the impact of lineof-sight (LoS) condition in the ergodic spectral efficiency of cellular networks. To achieve this goal, we have considered the kappa-mu shadowed model, which is a general model ...