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Browsing by Subject "Bandwidth"

Now showing items 1-19 of 19

A broadband pattern diversity annular slot antenna

Gallo, Michelle; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Bozzetti, Michele; Molina García-Pardo, José María; Juan Llacer, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2012-03)

An annular slot antenna suitable for pattern diversity in wideband applications is presented. Pattern diversity is obtained by feeding the antenna simultaneously with two microstrip lines printed on the back of the substrate, ...
Analyzing the Performance of Software Defined Networks vs Real Networks

Jimenez, Jose M.; Romero Martínez, José Oscar; Rego Máñez, Albert; Lloret, Jaime (IARIA, 2016)

[EN] Emulators and simulators provide an easy way to reduce hardware needs in experiments. Because of that, network researchers use applications that allow them to emulate or simulate networks, like Mininet in Software ...
Arrhythmia Mechanism and Scaling Effect on the Spectral Properties of Electroanatomical Maps with Manifold Harmonics

Sanroman-Junquera, Margarita; Mora-Jimenez, Inmaculada; Garcia-Alberola, Arcadio; Caamano, Antonio J.; Trénor Gomis, Beatriz Ana; Rojo-Alvarez, Jose L. (Institute of Electrical and Electronics Engineers, 2018)

[EN] Introduction: Spatial and temporal processing of intracardiac electrograms provides relevant information to support the arrhythmia ablation during electrophysio-logical studies. Current cardiac navigation systems (CNS) ...
Autonomous video compression system for environmental monitoring

Mateos-Cañas, Irene; Sendra, Sandra; Lloret, Jaime; Jimenez, Jose M. (Macrothink Institute, 2017-06-30)

[EN] The monitoring of natural environments is becoming a very controversial topic because people are more and more concerned about preserving and monitoring these natural spaces. The monitoring tasks are usually complemented ...
Boosting the performance of remote GPU virtualization using InfiniBand Connect-IB and PCIe 3.0

Reaño González, Carlos; Silla Jiménez, Federico; Peña Monferrer, Antonio José; Shainer, Gilad; Schultz, Scot; Castello Gimeno, Adrián; Quintana Ortí, Enrique Salvador; Duato Marín, José Francisco (IEEE, 2014-09-22)

[ENG] A clear trend has emerged involving the acceleration of scientific applications by using GPUs. However, the capabilities of these devices are still generally underutilized. Remote GPU virtualization techniques can ...
Coexistence of digital terrestrial television and next generation cellular networks in the 700 MHz band

Fuentes, Manuel; García Pardo, Concepción; Garro Crevillén, Eduardo; Gómez Barquero, David; Cardona Marcet, Narciso (Institute of Electrical and Electronics Engineers (IEEE), 2014-12)

With the spectrum liberation obtained by the deployment of digital terrestrial television and the analog TV switch-off, new bands are being assigned to IMT LTE. In the first cellular deployments in the digital dividend at ...
Creation of a magnetic boundary condition in a radiating ground plane to excite antenna modes

Sonkki, Marko; Cabedo Fabrés, Marta; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Salonen, Erkki T. (Institute of Electrical and Electronics Engineers (IEEE), 2011-10)

The creation of a magnetic boundary condition into the plane of symmetry in a radiating ground plane of a portable device is proposed to enhance its radiation efficiency and bandwidth. This magnetic boundary condition is ...
Diseño de un protocolo de comunicaciones sin pérdidas sobre Ethernet para clústeres de computadores

Ballester Tester, Ignacio (2015-07-31)

[ES] La pila de protocolos TCP/IP y en particular el protocolo TCP ha sido diseñado para permitir comunicaciones fiables en entornos donde se pueden producir pérdidas de paquetes. En este sentido, el protocolo TCP ha ...
Dual Photonic Generation Ultrawideband Impulse Radio by Frequency Shifting in Remote-Connectivity Fiber

Beltrán Ramírez, Marta; Llorente Sáez, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2011)

[EN] An impulse-radio ultrawideband (UWB) photonic generation technique based on frequency shifting in the remote connectivity fiber in optical access networks is proposed and analyzed in this paper. This technique is based ...
Improved Planar Wideband Antenna Element and its Usage in a Mobile MIMO System

Sonkki, Marko; Antonino Daviu, Eva; Cabedo Fabrés, Marta; Ferrando Bataller, Miguel; Salonen, E.T. (Institute of Electrical and Electronics Engineers (IEEE), 2012)

A simple antenna structure for a multiple-input-multiple-output (MIMO) system in a mobile terminal with spatial diversity is presented. A single antenna element consists of a combination of an electric dipole and a square ...
Influence of InfiniBand FDR on the performance of remote GPU virtualization

Reaño González, Carlos; Mayo Gual, Rafael; Quintana Ortí, Enrique Salvador; Silla Jiménez, Federico; Duato Marín, José Francisco; Peña Monferrer, Antonio José (IEEE, 2013-09-23)

The use of GPUs to accelerate general-purpose scientific and engineering applications is mainstream today, but their adoption in current high-performance computing clusters is impaired primarily by acquisition costs and ...
Low-loss Circularly Polarized Periodic Leaky-Wave Antenna

Sánchez-Escuderos, Daniel; Ferrando Bataller, Miguel; Herranz Herruzo, José Ignacio; Rodrigo Peñarrocha, Vicent Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2016)

This letter presents a periodic leaky-wave array antenna with circular polarization at millimeter-wave frequencies. The antenna is designed on the low-loss planar Goubau transmission line to maximize the radiation efficiency ...
Network Performance in HTML5 Video Connections

Sendra, Sandra; Túnez-Murcia, Ana Isabel; Lloret, Jaime; Jimenez, Jose M. (Macrothink Institute, 2018-10-31)

[EN] Currently, most of remote education systems use video streaming as the main basis to support teaching. These emissions can be seen in devices with different hardware features such as personal computers, tablets or ...
Novel Planar and Waveguide Implementations of Impedance Matching Networks Based on Tapered Lines Using Generalized Superellipses

Cogollos, Santiago; Vague Cardona, José Joaquín; Boria Esbert, Vicente Enrique; Martínez Pérez, Jorge Daniel (Institute of Electrical and Electronics Engineers, 2018)

[EN] For the practical implementation of RF and microwave impedance matching networks, a widely employed solution¿alternative to the use of classical impedance transformers¿is based on tapered lines. This paper shows a ...
Planar Wideband Polarization Diversity Antenna for Mobile Terminals

Tapani Sonkki, Marko; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Salonen, E.T. (Institute of Electrical and Electronics Engineers (IEEE), 2011)

This letter presents a planar wideband polarization diversity antenna for mobile terminals. The antenna consists of two orthogonally oriented quasi-complementary antennas (QCA) formed by the combination of an electric ...
Planificación de tareas considerando la contención en la jerarquía de memoria de procesadores multinúcleo

Feliu Pérez, Josué (2013-02-25)

[ES] Con el objetivo de mejorar el rendimiento de los CMPs, parte de la investigación reciente se ha centrado en la planificación de procesos para limitar la contención provocada por el limitado ancho de banda. Hoy en dia, ...
Regulación de la prebúsqueda considerando el ancho de banda de memoria en el IBM Power8

Navarro Serra, Carlos (2018-09-10)

[ES] Hoy en día, los procesadores implementan una serie de prefetchers a lo largo de la jerarquía de caché del procesador con el objetivo de reducir u ocultar la latencia de los accesos a memoria y, con ello, mejorar las ...
Single- and multiband OFDM photonic wireless links in the 75-110 GHz band employing optical combs

Beltrán Ramírez, Marta; Deng, Lei; Pang, Xiaodan; Zhang, Xu; Arlunno, Valeria; Zhao, Ying; Yu, Xianbin; Llorente Sáez, Roberto; Liu, Deming; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2012-10)

[EN] The photonic generation of electrical orthogonal frequency-division multiplexing (OFDM) modulated wireless signals in the 75110 GHz band is experimentally demonstrated employing in-phase/quadrature electrooptical ...
Wideband planar slotted radiating ground plane antenna for portable devices

Tapani Sonkki, Marko; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Salonen, Erkki T. (Wiley-Blackwell, 2011-12)

A method for exciting currents in a radiating ground plane over a wide frequency bandwidth is presented. Using a complementary slot in the ground plane excited by a closely spaced monopole (0.008-0.05¿) with 50 Î© input ...