Listar IC - Artículos por título
Mostrando ítems 102-121 de 182
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Joint Parameter Estimation for the Two-Wave with Diffuse Power Fading Model.
López-Fernández, Jesús Manuel; Moreno-Pozas, Laureano
; López-Martínez, Francisco Javier; Martos-Naya, Eduardo (MDPI, 2016-06-30)
Wireless sensor networks deployed within metallic cavities are known to suffer from a very severe fading, even in strong line-of-sight propagation conditions. This behavior is well-captured by the Two-Wave with Diffuse ... -
Label Aided Deep Ranking for the Automatic Diagnosis of Parkinsonian Syndromes.
Ortiz-García, Andrés; Martínez-Murcia, Francisco Jesús; Munilla-Fajardo, Jorge; Górriz-Sáez, Juan Manuel; Ramírez, Javier (Elsevier, 2018-10-16)
Parkinsonism is the second most common neurodegenerative disease in the world. Its diagnosis usually relies on visual analysis of Emission Computed Tomography (SPECT) images acquired using 123I − io f lupane radiotracer. ... -
Largest eigenvalue distribution of noncircularly symmetric Wishart-type matrices with application to Hoyt-faded MIMO communications
Moreno-Pozas, Laureano; Morales-Jimenez, David; Mckay, Matthew R.; Martos-Naya, Eduardo (Institute of Electrical and Electronics Engineers, 2018-03)
This paper is concerned with the largest eigenvalue of the Wishart-type random matrix W = XX† (or W = X†X), where X is a complex Gaussian matrix with unequal variances in the real and imaginary parts of its entries, i.e., ... -
Linearization of a Dual-Parallel Mach-Zehnder Modulator Using Optical Carrier Band Processing
Torrijos-Morán, Luis; Catalá-Lahoz, Cristina; Pérez-López, Daniel; Xu, Li; Tianxiang, Wang; Pérez-Galacho, Diego[et al.] (IEEE, 2023-05-15)
The linearization of a microwave photonic link based on a dual-parallel Mach-Zehnder modulator is theoretically de- scribed and experimentally demonstrated. Up to four different radio frequency tones are considered in the ... -
Link abstraction models for multicarrier systems: A logistic regression approach
Carreras Mesa, Alberto; Aguayo-Torres, María del Carmen; Martín-Vega, Francisco-Javier; Gómez-Paredes, Gerardo; Blánquez-Casado, Francisco; Delgado-Luque, Isabel-María; Entrambasaguas-Muñoz, José Tomás[et al.] (Wiley, 2017-09)
Evaluation of complex wireless systems through simulations is commonly tackled with an abstraction of physical link behavior. This procedure is performed in 2 phases: Firstly, training is performed at the link level, ... -
Low voltage 25Gbps silicon Mach-Zehnder modulator in the O-band
Pérez-Galacho, Diego; Baudot, Charles; Hirtzlin, Tifenn; Messaoudène, Sonia; Vulliet, Nathalie; Crozat, Paul; Boeuf, Frederic; Vivien, Laurent; Marris-Morini, Delphine[et al.] (Optical Publishing Group, 2017-05-04)
In this work, a 25 Gb ps silicon push-pull Mach-Zehnder modulator operating in the O-Band (1260 nm - 1360 nm) of optical communications and fabricated on a 300 mm platform is presented. The measured modulation efficiency ... -
Low-Complexity Distance-Based Scheduling for Multi-User XL-MIMO Systems.
(IEEE, 2021-08-02)We introduce Distance-Based Scheduling (DBS), a new technique for user selection in downlink multi-user communications with extra-large (XL) antenna arrays. DBS categorizes users according to their equivalent distance ... -
Mapping the global design space of nanophotonic components using machine learning pattern recognition
(Springer Nature, 2019-10-21)Nanophotonics finds ever broadening applications requiring complex components with many parameters to be simultaneously designed. Recent methodologies employing optimization algorithms commonly focus on a single performance ... -
Measurement-based FET analytical modeling using the nonlinear function sampling approach
Martín-Guerrero, Teresa María; Santarelli, Alberto; Gibiino, Gian Piero; Traverso, Pier Andrea; Camacho-Peñalosa, Carlos; Filicori, Fabio[et al.] (IEEE Microwave and Wireless Components Letters, 2020-12)
A novel and fast method for the measurement-based identification of an analytical FET compact model from large- signal waveforms is presented. Based on a two-tone two-port experiment, a recently published Nonlinear Function ... -
Measuring and estimating Key Quality Indicators in Cloud Gaming services
Baena, Carlos; Peñaherrera-Pulla, Oswaldo Sebastián; Barco-Moreno, Raquel; Fortes-Rodríguez, Sergio (Elsevier, 2023)
The gaming industry has proposed the concept of Cloud Gaming (CG), a paradigm that enhances the gaming experience on reduced hardware devices. However, this paradigm puts a lot of pressure on the communication links that ... -
Methodology for the Design and Evaluation of Self-Healing LTE Networks.
Gómez-Andrades, Ana; Muñoz, Pablo; Jatib Khatib, Emil; De la Bandera Cascales, Isabel; Serrano, Inmaculada; Barco-Moreno, Raquel[et al.] (IEEE, 2015)
Self-healing networks aim to detect cells with service degradation, identify the fault cause of their problem, and execute compensation and repair actions. The development of this type of automatic system presents several ... -
Mid-infrared suspended waveguide platform and building blocks
Sánchez-Postigo, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Soler Penadés, Jordi; Ortega-Moñux, Alejandro; Nedeljkovic, Milos; Halir, Robert; El Mokhtari Mimum, Faysal; Xu Cheng, Yolanda; Qu, Zhibo; Khokahr, Ali Z.; Osman, Ahmed; Cao, Wei; Littlejohns, Callum G.; Cheben, Pavel; Mashanovich, Goran Z.; Molina-Fernández, Íñigo[et al.] (Wiley, 2019-04-01)
In this work, the authors present their recent progress in the development of a platform for the mid-infrared wavelength range, based on suspended silicon waveguides with subwavelength metamaterial cladding. The platform ... -
Millimeter-long metamaterial surface-emitting antenna in the silicon photonics platform
Ginel-Moreno, Pablo; Sánchez-Postigo, Alejandro; De-Oliva-Rubio, José; Hadij-ElHouati, Abdelfettah; Ye, Winnie N.; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Schmid, Jens H.; Cheben, Pavel; Ortega-Moñux, Alejandro[et al.] (Optical Publishing Group, 2021-07-28)
Integrated optical antennas are key components for on-chip light detection and ranging technology (LIDAR). In order to achieve a highly collimated far field with reduced beam divergence, antenna lengths on the order of ... -
Modeling amplified arbitrary filtered heterodyne microwave photonic links
Sánchez, Erica; Pérez-López, Daniel; Pérez-Galacho, Diego; Huy-Ho, Tan; Wessel, David; Capmany, José[et al.] (2022-02-14)
We report an end-to-end analytic model for the computation of the figures of nerit (FOMs) of arbitrarily filtered and amplified heterodyne coherent microwave photonics (MWP) links. It is useful for evaluating the performance ... -
Morphological Characterization of Functional Brain Imaging by Isosurface Analysis in Parkinson’s Disease.
Castillo-Barnes, Diego; Martínez-Murcia, Francisco J.; Ortiz-García, Andrés; Salas-González, Diego; Ramírez, Javier; Górriz-Sáez, Juan Manuel[et al.] (World Scientific, 2020-08-12)
Finding new biomarkers to model Parkinson’s Disease (PD) is a challenge not only to help discerning between Healthy Control (HC) subjects and patients with potential PD, but also as a way to measure quantitatively the loss ... -
Multi-Sensor Fusion for Underwater Vehicle Localization by Augmentation of RBF Neural Network and Error-State Kalman Filter
Shaukat, Nabil; Ali, Ahmed; Javed Iqbal, Muhammad; Moinuddin, Muhammad; Otero-Roth, Pablo (IOAP-MPDI, 2021-02-06)
The Kalman filter variants extended Kalman filter (EKF) and error-state Kalman filter (ESKF) are widely used in underwater multi-sensor fusion applications for localization and navigation. Since these filters are designed ... -
Multinode component carrier management: multiconnectivity in 5G
De la Bandera Cascales, Isabel; Palacios, David; Barco-Moreno, Raquel (IEEE, 2021)
From its conception, 5G has been designed to support a wide variety of service types, ranging from enhanced mobile broadband (eMBB) to ultra-reliable low-latency communications (URLLC). To overcome the disparity of their ... -
Novel approximation of misalignment fading modeled by Beckmann distribution on free-space optical links
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen (Optica Publishing Group, 2016)
A novel accurate and useful approximation of the well-known Beckmann distribution is presented here, which is used to model generalized pointing errors in the context of free- space optical (FSO) communication systems. We ... -
Novel Results for the κ–μ Extreme Fading Distribution: Generation of White Samples and Capacity Analysis
López-Martínez, Francisco Javier; Moreno-Pozas, Laureano; Martos-Naya, Eduardo (IEEE Communications Letters, 2015-09)
We provide new analytical results for the κ-μ extreme (κ-μ-E) fading distribution, which is useful to model propagation conditions more severe than Rayleigh fading. First, we calculate a closed-form expression for the ... -
On the Calculation of the Incomplete MGF with Applications to Wireless Communications
López-Martínez, Francisco Javier; Romero-Jerez, Juan Manuel; París-Ángel, José Francisco (IEEE, 2017)
The incomplete moment generating function (IMGF) has paramount relevance in communication theory, since it appears in a plethora of scenarios when analyzing the performance of communication systems. We here present a general ...