Listar por autor "Aguayo-Torres, María del Carmen"
Mostrando ítems 1-20 de 25
-
A closed‐form expression for the coverage of cellular systems under Hoyt (Nakagami-q) fading.
Martín-Vega, Francisco-Javier; Gómez-Paredes, Gerardo
; López-Martínez, Francisco Javier; Aguayo-Torres, María del Carmen (Wiley, 2017)
A simple closed-form expression is provided for the coverage probability of cellular systems under Hoyt (Nakagami-q) fading, which models fading scenarios more severe than Rayleigh. The accuracy of the proposed framework ... -
A New Frequency Planning for Improved Capacity and Coverage in Sectorized OFDMA Cellular Networks
One of the main challenges in cellular systems is how to reduce Other Cells Interference (OCI) while keeping high spectral efficiency and high coverage probability. Since the beginning of cellular technologies, frequency ... -
A New Tractable Model to Estimate the Uplink Inter-Cell Interference in LTE
This paper presents a tractable model to estimate the uplink Inter-Cell Interference (ICI) in fully loaded LTE networks. Interfering users are considered to be uniformly distributed in an annulus so that evaluation of the ... -
Analysis of SC-FDMA and OFDMA Performance over Fading Channels
(Universidad de Málaga, Servicio de Publicaciones, 2011)SC-FDMA se ha convertido en una atractiva alternativa a OFDMA debido a su baja PAPR. Esta característica ha hecho que fuera elegida para su implantación en el enlace ascendente en la especificación LTE del 3GPP. En esta ... -
Analytical Modeling of Distributed Location Based Access for Vehicular Ad Hoc Networks
Martín-Vega, Francisco-Javier; Soret, Beatriz; Aguayo-Torres, María del Carmen; Gómez-Paredes, Gerardo; Kovács, István Z. (IEEE, 2017)
One of the key ingredients of Intelligent Transportation Systems (ITS) is delivery of broadcast status messages among vehicles for safety purposes. This requires an efficient Medium Access Control (MAC) that provides low ... -
Coordinated Multicast/Unicast Transmission on 5G: A Novel Approach for Linear Broadcasting
Jiménez-Soria, David; Martín-Vega, Francisco-Javier; Aguayo-Torres, María del Carmen (Springer, 2021-09-16)
Linear broadcasting services, with a scheduled programming, constitute a paramount tel-ecommunication service for today’s society. Although the existing technology is mature, current linear broadcast ... -
Doppler Spectrum Analysis in Three-Dimensional 5G Millimeter-Wave Channel Models
This article is contextualized in the mobile communications systems where there are multiple factors to consider: mobility, frequency, obstacles, reflectors, etc. In this paper, is presented an evaluation of the Doppler ... -
Emerging Tools for Link Adaptation on 5G NR and Beyond: Challenges and Opportunities.
Martín-Vega, Francisco-Javier; Ruiz Sicilia, Juan Carlos; Aguayo-Torres, María del Carmen; Gómez-Paredes, Gerardo (IEEE, 2021-09-10)
With the speeding up of the fifth generation (5G) new radio (NR) worldwide commercialization, one of the paramount questions for operators and vendors is how to optimize the radio links, considering the widely diverse ... -
Evaluación de técnicas de gestión de recursos radio en sistemas celulares LTE-A
(UMA Editorial, 2020-02-12)Esta tesis doctoral está enfocada en el análisis de técnicas de gestión de recursos radio sobre redes celulares LTE-Advanced. En particular, se abordan dos grandes bloques de técnicas de gestión de recursos: en primer ... -
Heterogeneous cellular netwoks under diverse coupling and association criteria
(UMA Editorial, 2017-06-30)Current networks are moving towards Heterogeneous Cellular Networks (HCN) arising from the combination of small cells with existing macrocells. The aim of this thesis is to analyze various performance indicators of ... -
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, ... -
Logistic regression for BLER prediction in 5G
Ruiz Sicilia, Juan Carlos; Aguayo-Torres, María del Carmen (2020-10-09)
In this work, a block error rate (BLER) predictor for 5G based on logistic regression is presented. The regression is fed with transmission parameters and channel statistics. With these features, the predictor can model ... -
Mathematical Modelling and Analysis of Spatially Correlated Heterogeneous and Vehicular Networks - A Stochastic Geometry Approach
(UMA Editorial, 2017-06-13)Heterogeneous Cellular Networks (HCNs) and vehicular communications are two key ingredients of future 5G communication networks, which aim at providing high data rates on the one former case and high reliability on the ... -
Performance of SC-FDMA with diversity techniques over land mobile satellite channel
(UMA Editorial, 2016)La demanda de la alta velocidad de datos resulta en una importante interferencia entre símbolos para los sistemas monoportadora en canales de ancho de banda y potencia limitada. Superar la selectividad en el tiempo y la ... -
Prestaciones de LTE sobre el canal aeronáutico
Martín-Vega, Francisco-Javier; Gómez, Gerardo; Mosquera, Carlos; Aguayo-Torres, María del Carmen (2014-09-03)
This work assesses the performance of Long Term Evolution (LTE) downlink over aeronautical channels associated to arrival, parking and en-route scenarios. The huge velocity related to some of these scenarios poses the ... -
Procesado masivo y automático de trazas en redes celulares
Anaya-López, G. J.; Guerra-Melgares, Noelia; Cárdenas-Angelat, Carlos; Aguayo-Torres, María del Carmen; Baños-Polglase, Juana Daphne (2019-09-20)
The introduction of new services in mobile communications usually requires extensive evaluation campaigns. Even though new services and devices may have undergone conformance testing, it is important to ensure they do ... -
Radio interference analysis tool based on GNU Radio
Yébenes Gálvez, José Antonio; Martos-Naya, Eduardo; Aguayo-Torres, María del Carmen; Cárdenas-Angelat, Carlos; Baños-Polglase, Juana Daphne (2019-10-30)
Avoiding interference is one of the main challenges in radio communications. Interference hunting is usually done with costly instruments. In this work, a cost efficient portable tool is described for interference analysis ... -
Selección Dinámica de Celda en los Enlaces Ascendente y Descendente de Redes Heterogéneas: Estudio de las Estratégias Acoplada y Desacoplada
Montesinos-Barrios, Soraya; Aguayo-Torres, María del Carmen; Martín-Vega, Francisco-Javier (2017-09-06)
Dynamic cell selection (DCS) and decoupled access are two disruptive candidate schemes for cell association in future 5G networks. DCS provides adaptation to fast channel variations, which results in potential performance ... -
Statistical Characterization of the Chunk Size Distribution in DASH
Vaca-Rubio, Cristian J.; Gómez-Paredes, Gerardo; Aguayo-Torres, María del Carmen; López-Martínez, Francisco Javier (2019-09-13)
We present a statistical characterization of the segment size distribution of video streaming services based on dynamic adaptive streaming over HTTP (DASH). We first obtain the empirical distributions from traffic captures ... -
Técnicas de adaptación del enlace mejoradas para redes celulares
(UMA Editorial, 2017)En esta tesis se ha realizado un estudio del proceso de adaptación del enlace en LTE, a partir del cual se proponen nuevas técnicas para mejorar su rendimiento. Este trabajo se centra en dos aspectos fundamentales: 1) el ...