Listar IC - Artículos por título
Mostrando ítems 144-163 de 209
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Opportunistic fusion of ranges from different sources for indoor positioning
Álvarez-Merino, Carlos Simón; Luo Chen, Hao Qiang; Jatib Khatib, Emil; Barco-Moreno, Raquel
(Institute of Electrical and Electronics Engineers, 2021-07)
Ultra-Wide Band (UWB) technology stands out as one of the most promising technologies for locating the user in indoor scenarios for the new 5G mobile generation. As a drawback, it requires a dense infrastructure. For this ... -
Optical pump-rejection filter based on silicon sub-wavelength engineered photonic structures
Pérez-Galacho, Diego; Alonso-Ramos, Carlos; Mazeas, Florent; Le Roux, Xavier; Oser, Dorian; Zhang, Weiwei; Marris-Morini, Delphine; Labonté, Laurent; Tanzilli, Sébastien; Cassan, Éric; Vivien, Laurent[et al.] (Optical Publishing Group, 2017-04-04)
The high index contrast of the silicon-on-insulator (SOI) platform allows the realization of ultra-compact photonic circuits. However, this high contrast hinders the implementation of narrow-band Bragg filters. These ... -
Optimal Fair Scheduling in S-TDMA Sensor Networks for Monitoring River Plumes
Luque-Nieto, Miguel Ángel; Moreno-Roldán, José Miguel; Poncela-González, Javier; Otero-Roth, Pablo (Hindawi Publishing Corporation, 2016)
Underwater wireless sensor networks (UWSNs) are a promising technology to provide oceanographers with environmental data in real time. Suitable network topologies to monitor estuaries are formed by strings coming together ... -
Optimal scheduling and fair servicepolicy for STDMA in underwater networks with acoustic communications
Luque-Nieto, Miguel Ángel; Moreno-Roldán, José Miguel; Otero-Roth, Pablo; Poncela-González, Javier (MDPI, 2018-02)
In this work, a multi-hop string network with a single sink node is analyzed. A periodic optimal scheduling for TDMA operation that considers the characteristic long propagation delay of the underwater acoustic channel is ... -
Optimization of 5G Networks for Smart Logistics.
Jatib Khatib, Emil; Barco-Moreno, Raquel (MDPI, 2021-03-22)
Industry 4.0 is generalizing the use of wireless connectivity in manufacturing and logistics. Specifically, in Smart Logistics, novel Industry 4.0 technologies are used to enable agile supply chains, with reduced management, ... -
Outage capacity of rate-adaptive relaying for FSO links with nonzero boresight pointing errors
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Beatriz; Castillo-Vázquez, Carmen; Qaraqe, Khalid; qaraqe[et al.] (Institute of Electrical and Electronics Engineers, 2019-03-20)
An outage capacity analysis of a three-way free-space optical (FSO) setup based on the optical path selection, either source-destination (S-D) or source-relay-destination (S-R-D), with a greater value of channel gain along ... -
Outage Performance of Exponentiated Weibull FSO Links Under Generalized Pointing Errors.
Boluda-Ruiz, Rubén; García-Zambrana, Antonio; Castillo-Vázquez, Carmen; Castillo-Vázquez, Beatriz; Hranilovic, Steve (IEEE, 2017)
Even in clear conditions, free-space optical (FSO) links are impaired by scintillation and dynamic misalignment which result in a slow fading channel. This paper presents the first characterization of outage performance ... -
Parameters characterization of dielectric materials samples in microwave and millimeter-wave bands
Pérez-Escribano, Mario; Márquez-Segura, Enrique (IEEE Transactions on Microwave Theory and Techniques, 2021-03-06)
In this work, an optimized broadband method using multilayer transmission lines to characterize dielectric permittivity and loss tangent of material samples is presented. For this purpose, a microstrip line loaded with a ... -
PCA filtering and Probabilistic SOM for Network Intrusion Detection.
De la Hoz Correa, Eduardo; De la Hoz Franco, Emiro; Ortiz-García, Andrés; Ortega, Julio; Prieto, Beatriz (Elsevier, 2015-09-21)
The growth of the Internet and, consequently, the number of interconnected computers, has exposed significant amounts of information to intruders and attackers. Firewalls aim to detect violations according to a predefined ... -
Perfectly vertical surface grating couplers using subwavelength engineering for increased feature sizes.
Kamandar Dezfouli, Mohsen; Grinberg, Yuri; Melati, Daniele; Cheben, Pavel; Schmid, Jens H.; Sánchez-Postigo, Alejandro; Ortega-Moñux, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Cheriton, Ross; Janz, Siegfried; Xu, Dan-Xia; Schmid, Jens H.[et al.] (Optica, 2020-06-29)
We present perfectly vertical grating couplers for the 220 nm silicon-on-insulator platform incorporating subwavelength metamaterials to increase the minimum feature sizes and achieve broadband low back-reflection. Our ... -
Performance Evaluation of Broadband Characterization of Coupled Transmission Lines Even- and Odd-Mode Propagation Constants Using Differential and Common Mode S-Parameters
Pérez-Escribano, Mario; Márquez-Segura, Enrique (IEEE Journal of Microwaves, 2023)
This work encompasses some relevant issues that arise when using a broadband method to characterize the even and odd mode propagation constants of symmetric microstrip coupled lines using four-port pure-mode differential ... -
Performance Evaluation of UOWC Systems from an Empirical Channel Model Approach for Air Bubble-Induced Scattering
Salcedo-Serrano, Pedro; Boluda-Ruiz, Rubén; Garrido-Balsells, José María; Castillo-Vázquez, Beatriz; Puerta-Notario, Antonio; García-Zambrana, Antonio[et al.] (MDPI, 2024-08-13)
Underwater optical wireless communication (UOWC) systems provide the potential to establish secure high-data-rate communication links in underwater environments. The uniqueness of oceanic impairments, such as absorption, ... -
Physical Layer Security of Large Reflecting Surface Aided Communications with Phase Errors.
(IEEE, 2020-10-09)The physical layer security (PLS) performance of a wireless communication link through a large reflecting surface (LRS) with phase errors is analyzed. Leveraging recent results that express the LRS-based composite channel ... -
Polarization insensitive metamaterial engineered multimode interference coupler in a 220 nm silicon-on-insulator platform
Pérez-Armenta, Carlos; Ortega-Moñux, Alejandro; Luque-González, José Manuel; Halir, Robert; Schmid, Jens; Cheben, Pavel; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo[et al.] (Elsevier, 2023)
High-index contrast silicon waveguides exhibit strong birefringence that hinders the development of polarization-insensitive devices, especially for sub-micrometer silicon layer thickness. Here a polarizationindependent 2 ... -
Polarization splitting directional coupler using tilted subwavelength gratings
Luque-González, José Manuel; Herrero-Bermello, Alaine; Ortega-Moñux, Alejandro; Sánchez-Rodriguez, Marina; Velasco, Aitor V.; Schmid, Jens; Cheben, Pavel; Molina-Fernández, Íñigo; Halir, Robert[et al.] (Optica Publishing Group, 2020)
On-chip polarization splitters are key elements for coherent optical communication systems and polarization diversity circuits. These devices are often implemented with directional couplers that are symmetric for one ... -
Preprocessing for Lessening the Influence of Eye Artifacts in EEG Analysis.
Villena-Rodríguez, Alejandro; Tardón-García, Lorenzo José; Barbancho-Pérez, Isabel; Barbancho-Pérez, Ana María; Brattico, Elvira; Haumann, Niels T.[et al.] (MDPI, 2019-04-27)
We dealt with the problem of artifacts in EEG signals in relation to the usage of lengthy trials. Specifically, we considered eye artifacts found in EEG signals, their influence in the analysis of the data and alternatives ... -
Proactive dual connectivity for automated guided vehicles in outdoor industrial environment
Mendoza, Jessica; Kovács, István Z.; López, Melisa; Sørensen, Troels B.; Adeogun, Ramoni; De la Bandera Cascales, Isabel; Barco-Moreno, Raquel[et al.] (IEEE, 2022)
5G communication systems are one of the major enabling technologies to meet the needs of Industry 4.0. This paper focuses on the use case of automated guided vehicles (AGVs) in an outdoor industrial scenario. To meet the ... -
Probabilistic and explainable modeling of Phase–Phase Cross-Frequency Coupling patterns in EEG. Application to dyslexia diagnosis
Castillo-Barnes, Diego; Gallego-Molina, Nicolás J.; Formoso, Marco A.; Ortiz-García, Andrés; Figueiredo, Patrícia; Luque-Vilaseca, Juan Luis[et al.] (Elsevier, 2024)
This work explores the intricate neural dynamics associated with dyslexia through the lens of Cross-Frequency Coupling (CFC) analysis applied to electroencephalography (EEG) signals evaluated from 48 seven-year-old Spanish ... -
Probabilistic Combination of Non-Linear Eigenprojections For Ensemble Classification.
Arco, Juan E.; Ortiz-García, Andrés; Ramírez, Javier; Martínez-Murcia, Francisco Jesús; Zhang, Yu-Dong; Broncano, Jordi; Berbís, Álvaro; Royuela-del-Val, Javier; Luna, Antonio; Górriz-Sáez, Juan Manuel[et al.] (IEEE, 2022-10-10)
The emergence of new technologies has changed the way clinicians perform diagnosis. Medical imaging play a crucial role in this process, given the amount of information that they usually provide as non-invasive techniques. ...