Exploració per autor "Pérez Neira, Ana Isabel"
Ara es mostren els items 64-83 de 252
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DCT-based air interface design for function computation
Martínez Gost, Marc; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 2023-02-02)
Article
Accés obertWith the integration of communication and computing, it is expected that part of the computing is transferred to the transmitter side. In this paper we address the general problem of Frequency Modulation (FM) for function ... -
Decentralised multi-access MAC protocol for ad-hoc networks
Realp, Marc; Pérez Neira, Ana Isabel (2003)
Text en actes de congrés
Accés obertIn ad-hoc radio networks, mechanisms on how to access the radio channel are extremely important in order to improve network efficiency and, when needed, to guarantee QoS. Traditionally, Medium Access Control (MAC) protocols ... -
Deep learning for experimental hybrid terrestrial and satellite interference management
Henarejos, Pol; Vázquez Oliver, Miguel Ángel; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialInterference Management is a vast topic present in many disciplines. The majority of wireless standards suffer the drawback of interference intrusion and the network efficiency drop due to that. Traditionally, interference ... -
Delay bunds for resource allocation in wideband wireless systems
Pérez Neira, Ana Isabel; Realp, Marc; Knopp, Raymond (2006)
Text en actes de congrés
Accés obertIn this paper, the problem of resource allocation in multiuser single-antenna wideband OFDM(A) systems is considered from a cross-layer point of view. The main motivation is to show advantages of such systems with respect ... -
Deploying artificial intelligence in the wireless infrastructure: the challenges ahead
Vázquez Oliver, Miguel Ángel; Pallois, Jean Paul; Debbah, Mérouane; Masouros, Christos; Kenyon, Tony; Deng, Yansha; Mekuria, Fisseha; Pérez Neira, Ana Isabel; Erfanian, Javan (Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialThe adoption of artificial intelligence (AI) techniques entails a substantial change in the wireless ecosystem where data as well as their owners become crucial. As a result, the roll out of AI techniques in wireless systems ... -
Design of a hybrid ground/space architecture based on individual on-board feed power optimization for the forward link of a multi-beam broadband satellite system
Joroughi, Vahid; Vazquez, Miguel Angel; Devillers, Bertrand; Pérez Neira, Ana Isabel (American Institute of Aeronautics and Astronautics (AIAA), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe multi-beam broadband satellite systems have been deployed to provide broadband services to their under-served geo-graphical area. In one hand, with assuming full frequency reuse among beams the resulting interference ... -
Design of an hybrid ground-space architecture based on individual on-board antenna power optimization for the forward link of a multi-beam broadband satellite system
Joroughi, Vahid; Vazquez, Miguel Angel; Devillers, Bertrand; Pérez Neira, Ana Isabel (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe multi-beam broadband satellite systems have been deployed to provide broadband services to their under-served geo-graphical area. In one hand, with assuming full frequency reuse among beams the resulting interference ... -
Design of an on-board beam generation process for the forward link of a multibeam broadband satellite system
Joroughi, Vahid; Devillers, Bertrand; Vazquez, Miguel Angel; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe multi-beam broadband satellite systems have been deployed to provide broadband services to their under-served geo-graphical area. In one hand, with assuming full frequency reuse among beams the resulting interference ... -
Design of pre-coding and combining in hybrid analog-digital massive MIMO with phase noise
Corvaja, Roberto; García Armada, Ana; Vazquez, Miguel Angel; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per acord de confidencialitatThe design of massive MIMO, especially at millimeter waves, requires a trade-off between cost and power consumption, balancing the complexity and the performance in terms of achievable rate. A recent trend in the design ... -
Differential feedback in MIMO communications: performance with delay and real channel measurements
Sacristán Murga, Daniel; Kaltenberger, Florian; Pascual Iserte, Antonio; Pérez Neira, Ana Isabel (2009-02)
Text en actes de congrés
Accés obert -
Dimensionality constraints imposed by highly frequency selective channels on MIMO-FBMC / OQAM systems
Pérez Neira, Ana Isabel; Caus, Marius (VDE Conference Publications, 2015)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper investigates the application of MIMO to the FBMC/OQAM scheme in highly frequency selective channels. The system model that is considered in this work does not make any assumption about the flatness of the channel. ... -
Distance-aware coordinated multi-point transmission for terahertz band communication
Dowhuszko, Alexis; Gil Jiménez, Víctor P.; Genovés Guzmán, Borja; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialTerahertz (THz) band communication has abundant spectral resources to accommodate multiple broadband carriers. However, the strong path loss attenuation and the limited transmission power affect the maximum number of ... -
Distributed power control with received power constraints for time-area-spectrum licenses
Pérez Neira, Ana Isabel; Veciana Fontanet, Joaquim Maria; Vázquez, Miguel Ángel; Lagunas, Eva (2016-03)
Article
Accés obertThis paper deals with the problem of optimal decentralized power control in systems whose spectrum is regulated in time and space, the so-called time-area-spectrum (TAS) licensed. This license system gives to the owner the ... -
Dual polarized modulation and reception for next generation mobile satellite communications
Henarejos Hernández, Pol; Pérez Neira, Ana Isabel (2015-10-01)
Article
Accés obertThis paper presents the novel application of polarized modulation (PMod) for increasing the throughput in mobile satellite transmissions. One of the major drawbacks in mobile satellite communications is the fact that the ... -
DVB-T candidate power detector for cognitive radio
Rojas, Miguel A.; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (2009)
Text en actes de congrés
Accés obertDynamic detection of primary users is one of the main functions of spectrum sensing for Cognitive Radio (CR) communications aiming to increase the use of radio spectrum. In this work the performance of the so-called ... -
Dynamic bit allocation and differential quantization in feedback link for robust power allocation in multiuser opportunistic beamforming
Zorba, Nizar; Pascual Iserte, Antonio; Pérez Neira, Ana Isabel (2008)
Text en actes de congrés
Accés obertMulti-antenna systems provide advantages in terms of link quality and multiuser access capabilities, which can be achieved by using schemes as multibeam opportunistic beamforming. This scheme only requires partial channel ... -
Edge computing and communication for energy-efficient earth surveillance with LEO satellites
Martínez Gost, Marc; Leyva-Mayorga, Israel; Pérez Neira, Ana Isabel; Vázquez Oliver, Miguel Ángel; Soret, Beatriz; Moretti, Marco (Institute of Electrical and Electronics Engineers (IEEE), 2022)
Comunicació de congrés
Accés obertModern satellites deployed in low Earth orbit (LEO) accommodate processing payloads that can be exploited for edge computing. Furthermore, by implementing inter-satellite links, the LEO satellites in a constellation can ... -
Efficient margin adaptive scheduling for MIMO-OFDMA systems
Moretti, Marco; Pérez Neira, Ana Isabel (2013-01)
Article
Accés restringit per política de l'editorialIn this paper we address the problem of margin adaptive scheduling in the downlink of an orthogonal frequency division multiple access (OFDMA) multiple-input multiple-output (MIMO) system. Optimal resource allocation in ... -
Energy efficiency communications over the AWGN relay channel
Gómez Vilardebó, Jesús; Pérez Neira, Ana Isabel; Nájar Martón, Montserrat (2010)
Article
Accés restringit per política de l'editorialThis paper addresses the energy efficiency analysis of the relay channel under additive white Gaussian noise. We consider the rate bounds given by decode and forward and the cut set bound and assume that resources are ... -
Energy efficient communications over the AWGN relay channel
Gómez Vilardebó, Jesús; Pérez Neira, Ana Isabel; Nájar Martón, Montserrat (2010-01-08)
Article
Accés obertThis paper addresses the energy efficiency analysis of the relay channel under additive white Gaussian noise. We consider the rate bounds given by decode and forward and the cut set bound and assume that resources are ...