Listar Ingeniería de Comunicaciones - (IC) por título
Mostrando ítems 393-412 de 599
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NB-IoT latency evaluation with real measurements
(2022-07)In the 3GPP LTE Release 13, NB-IoT was standardized to provide wide-area connectivity for IoT. To optimize network signaling and power consumption, control plane (CP) optimization was introduced. In Release 15, to support ... -
Network Anomaly Classification by Support Vector Classifiers Ensemble and Non-linear Projection Techniques
(Springer, 2013-09)Network anomaly detection is currently a challenge due to the number of different attacks and the number of potential attackers. Intrusion detection systems aim to detect misuses or network anomalies in order to block ports ... -
New open access software designed for the recognition of daily microstructures used in ageing fish
(2014-10-28)Ageing methods for most of the exploited fish species are not validated, and consequently age data series often have important gaps and uncertainty manifesting its consequences on age-based fisheries assessment. In ... -
Next-Generation Self-Organizing Networks through a Machine Learning Approach
(UMA Editorial, 2018-12-17)Para reducir los costes de gestión de las redes celulares, que, con el tiempo, aumentaban en complejidad, surgió el concepto de las redes autoorganizadas, o self-organizing networks (SON). Es decir, la automatización de ... -
Non-homogeneous Fabry-Pérot Antenna Design at Ku-band
(2021-09-21)A novel technique to design Fabry-Pérot antennas with non-homogeneous PRS is described. It takes advantage of a transmission line circuit model to efficiently obtain all necessary unit cell designs that satisfy the cavity ... -
Non-homogeneous Fabry-Pérot antenna design process to improve aperture efficiency
(2022-03-27)A novel technique to design Fabry-Pérot antennas with non-homogeneous partially reflective surfaces (PRSs) is described. It uses a transmission line circuit model to efficiently obtain all necessary unit cell designs that ... -
Novel Implementation for a Cavity-Backed Slot Fed in Transmission Configuration
(2018-04-23)A novel radiating element proposed previously by the authors is alternatively implemented using enclosed microstrip configuration. The radiating element shows broad impedance bandwidth and unidirectional radiation pattern. ... -
Nuevas tendencias en el sector aeroespacial: Space Situational Awareness
(2016-06-30)La conferencia "Nuevas tendencias en el sector aeroespacial: Space Situational Awareness", impartida por el experto José María Hermoso Garnica (INDRA Espacio, ex-ESA, ...) se centra en el nuevo escenario que surge en los ... -
Nuevos esquemas de recepción coherente multipuerto para comunicaciones ópticas
(Servicio de Publicaciones y Divulgación Científica, 2015)Los objetivos de esta Tesis se centran en el estudio y evaluación numérica de nuevos esquemas de recepción coherente multipuerto de sistemas de comunicación por fibra óptica. Se ha desarrollado y validado una herramienta ... -
Obtaining quasi-static models using a frequency domain extraction methodology
(2018-07-02)This contribution illustrates how a realistic nonlinear quasi-static model for FET-type devices can be extracted using an original frequency domain extraction technique. An ideal ‘made-up’ device is built from the measured ... -
Obtención de intervalos de confianza en redes neuronales para predicción en redes celulares
(2022-09)Hoy en día, las redes celulares presentan una complejidad extrema y un alto grado de dinamismo, lo que hace que predecir las fluctuaciones en el rendimiento de la red sea una tarea extremadamente difícil. Gracias a ... -
On Some Unifications Arising from the MIMO Rician Shadowed Model
(IEEE, 2016)This paper shows that the proposed Rician shadowed model for multi-antenna communications allows for the unification of a wide set of models, both for multiple-input multiple-output (MIMO) and single- input single-output ... -
On the Calculation of the Incomplete MGF with Applications to Wireless Communications
(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 ... -
On the connection between noncircularly-symmetric and noncentral fading models: univariate and multivariate analysis
(UMA Editorial, 2017-06-01)This thesis provides new statistical connections between noncircularly-symmetric central and circularly-symmetric noncentral underlying complex Gaussian models. This is particularly interesting since it facilitates the ... -
On the effect of random power availability in wireless power transfer systems with physical layer security
(2020-10-22)In this paper, we evaluate the performance of wireless powered communication systems from a physical layer security perspective. Our aim is to determine under which conditions the random power availability due to wireless ... -
On the eigenstate equivalent circuit for lossy asymmetric two-ports and its applications
(2022)An equivalent-circuit topology for two-port lossy non-symmetric reciprocal networks is presented [1]. The circuit topology is based on the eigenstate decomposition. The proposed circuit consists of two immittances and two ... -
On the Improvement of Cellular Coverage Maps by Filtering MDT Measurements
(IEEE, 2023-07-01)In cellular systems, network re-planning aims to update network configuration to cope with permanent changes in the environment. In this task, terminal measurements are often used to calibrate performance models integrated ... -
On the Phase Response and Radiation Efficiency of the Complementary Strip-Slot as an Array Element
(2015-05-05)The complementary strip-slot element is a broadlymatched microstrip radiator that has been used to design innovative series-fed arrays. It consists of a microstrip series-fed slot that have its complementary stub on the ... -
On the system performance of DFT-S-OFDM and CP-OFDM for 5G Uplink in mmWave band
(2021-09-20)Both conventional Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM) and Discrete Fourier Transform Spread OFDM (DFT-S-OFDM) have been adopted for their use in the Physical Uplink Shared Channel (PUSCH) in ... -
On the use of bianisotropic huygens' metasurfaces to build leaky-wave antennas
(2019-07-16)Huygens' metasurfaces are considered a powerful tool to achieve anomalous electromagnetic field transformations. They consist of an artifcial surface built of pairs of collocated electric and magetic dipoles that force ...