Zobrazeno 1 - 10
of 499
pro vyhledávání: '"A. Martin Vega"'
Multiple-Input Multiple-Output (MIMO) systems play a crucial role in fifth-generation (5G) mobile communications, primarily achieved through the utilization of precoding matrix techniques. This paper presents precoding techniques employing codebooks
Externí odkaz:
http://arxiv.org/abs/2410.02391
Autor:
Villena-Rodriguez, Alejandro, Martín-Vega, Francisco J., Gómez, Gerardo, Aguayo-Torres, Mari Carmen, Kaddoum, Georges
To meet the ever-increasing demand for higher data rates, 5G and 6G technologies are shifting transceivers to higher carrier frequencies, to support wider bandwidths and more antenna elements. Nevertheless, this solution poses several key challenges:
Externí odkaz:
http://arxiv.org/abs/2407.07434
Autor:
Villena-Rodríguez, Alejandro, Gómez, Gerardo, Aguayo-Torres, Mari Carmen, Martín-Vega, Francisco J., Outes-Carnero, José, Ng-Molina, F. Yak, Ramiro-Moreno, Juan
The uplink of 5G networks allows selecting the transmit waveform between cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and discrete Fourier transform spread OFDM (DFT-S-OFDM), which is appealing for cell-edge users using high-fre
Externí odkaz:
http://arxiv.org/abs/2406.13675
Governments have to supervise and inspect social economy enterprises (SEEs). However, inspecting all SEEs is not possible due to the large number of SEEs and the low number of inspectors in general. We proposed a prediction model based on a machine l
Externí odkaz:
http://arxiv.org/abs/2210.05052
Autor:
Martín-Vega, Francisco, Herrera, Edwin, Wu, Beilun, Barrena, Víctor, Mompeán, Federico, García-Hernández, Mar, Canfield, Paul C., Black-Schaffer, Annica M., Baldoví, José J., Guillamón, Isabel, Suderow, Hermann
The electronic bandstructure of Au$_2$Pb has a Dirac cone which gaps when undergoing a structural transition into a low temperature superconducting phase. This suggests that the superconducting phase ($T_c=1.1$ K) might hold topological properties at
Externí odkaz:
http://arxiv.org/abs/2205.07094
Autor:
Martín-Vega, Francisco, Barrena, Víctor, Sánchez-Barquilla, Raquel, Fernández-Lomana, Marta, Llorens, José Benito, Wu, Beilun, Fente, Antón, Duplain, David Perconte, Horcas, Ignacio, López, Raquel, Blanco, Javier, Higuera, Juan Antonio, Mañas-Valero, Samuel, Jo, Na Hyun, Schmidt, Juan, Canfield, Paul C., Rubio-Bollinger, Gabino, Rodrigo, José Gabriel, Herrera, Edwin, Guillamón, Isabel, Suderow, Hermann
Publikováno v:
Review of Scientific Instruments 92, 103705 (2021)
A Scanning Tunneling Microscope (STM) is one of the most important scanning probe tools available to study and manipulate matter at the nanoscale. In a STM, a tip is scanned on top of a surface with a separation of a few \AA. Often, the tunneling cur
Externí odkaz:
http://arxiv.org/abs/2204.13011
Autor:
Garcés-Visier, Cristina, Maruszewski, Przemyslaw, Luis-Huertas, Ana Lourdes, Borrrego-Jimenez, Pedro, Azorín, Daniel, Martín-Vega, Alberto, Espinoza-Vega, Manuel, Herrero-Velasco, Blanca, Alonso-Calderón, Jose Lorenzo
Publikováno v:
In Journal of Pediatric Surgery Open October 2024 8
Autor:
Martín-Vega, Francisco J., Gómez, Gerardo, Morales-Jiménez, David, López-Martínez, F. Javier, Aguayo-Torres, Mari Carmen
Directional beamforming will play a paramount role in 5G and beyond networks in order to combat the higher path losses incurred at millimeter wave bands. Appropriate modeling and analysis of the angles and distances between transmitters and receivers
Externí odkaz:
http://arxiv.org/abs/2203.13510
Autor:
López-Sánchez, M., Villena-Rodríguez, A., Gómez, G., Martín-Vega, F. J., Aguayo-Torres, M. C.
In this paper, we propose a novel deep reinforcement learning framework to maximize user fairness in terms of delay. To this end, we devise a new version of the modified largest weighted delay first (M-LWDF) algorithm, which is called $\beta$-M-LWDF,
Externí odkaz:
http://arxiv.org/abs/2201.10281
Autor:
Lomana, Marta Fernández, Wu, Beilun, Martín-Vega, Francisco, Barquilla, Raquel Sánchez, Montoya, Rafael Álvarez, Castilla, José María, Navarrete, José, Marijuan, Juan Ramón, Herrera, Edwin, Suderow, Hermann, Guillamón, Isabel
We describe a scanning tunneling microscope (STM) that operates at magnetic fields up to 22 Tesla and temperatures down to 80 mK. We discuss the design of the STM head, with an improved coarse approach, the vibration isolation system, and efforts to
Externí odkaz:
http://arxiv.org/abs/2108.03157