Exploració per autor "Lagunas Targarona, Eva"
Ara es mostren els items 13-26 de 26
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NOMA-enabled multi-beam satellite systems: Joint optimization to overcome offered-requested data mismatches
Wang, Anyue; Lei, Lei; Lagunas Targarona, Eva; Pérez Neira, Ana Isabel; Chatzinotas, Symeon; Ottersten, Björn (Institute of Electrical and Electronics Engineers (IEEE), 2021-01)
Article
Accés obertNon-Orthogonal Multiple Access (NOMA) has the potentials to improve the performance of multi-beam satellite systems. The performance optimization in satellite-NOMA systems can be different from that in terrestrial-NOMA ... -
On fairness optimization for NOMA-enabled multi-beam satellite systems
Wang, Anyue; Lei, Lei; Lagunas Targarona, Eva; Pérez Neira, Ana Isabel; Chatzinotas, Simeon; Ottersten, Bjorn (Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés obertIn a multi-beam satellite communication system, traffic requests are typically asymmetric across beams and highly heterogeneous among terminals. In practical operations, it is important to achieve a good match between the ... -
Pattern matching for building feature extraction
Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (2014-12-01)
Article
Accés restringit per política de l'editorialWe address the problem of detecting building dominant scatterers using a reduced number of measurements with applications to through-the-wall radar (TWR) and urban sensing. We consider oblique illumination, which specially ... -
Precoding with received-interference power control for multibeam satellite communication systems
Lagunas Targarona, Eva; Pérez Neira, Ana Isabel; Martínez Gost, Marc; Lagunas Hernandez, Miguel A.; Vázquez Oliver, Miguel Ángel; Ottersten, Björn (Frontiers Media SA, 2021-05-24)
Article
Accés obertZero-Forcing (ZF) and Regularized Zero-Forcing (RZF) precoding are low-complexity sub-optimal solutions widely accepted in the satellite communications community to mitigate the resulting co-channel interference caused by ... -
Robust primary user identification using compressive sampling for cognitive radios
Lagunas Targarona, Eva; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn cognitive radio (CR), the problem of limited spectral resources is solved by enabling unlicensed systems to opportunistically utilize the unused licensed bands. Compressive Sensing (CS) has been successfully applied to ... -
Shared access satellite-terrestrial reconfigurable backhaul network enabled by smart antennas at mm-wave band
Artiga Campos, Xavier; Pérez Neira, Ana Isabel; Baranda Hortigüela, Jorge; Lagunas Targarona, Eva; Chatzinotas, Symeon; Ziaragkas, Georgios (2018-09-01)
Article
Accés obert5G traffic expectations require not only the appropriate access infrastructure, but also the corresponding backhaul infrastructure to ensure a well-balanced network scaling. Optical fibre and terrestrial wireless backhaul ... -
Space-time-frequency candidate methods for spectrum sensing
Lagunas Targarona, Eva; Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (2011)
Comunicació de congrés
Accés restringit per política de l'editorialThe basic idea behind Cognitive Radio (CR) is to allow unlicensed users to utilize licensed frequency bands when they do not interfere to the primary (licensed) users. Thus, an important requirement of CR systems is to ... -
Sparse channel estimation based on compressed sensing theory for UWB systems
Lagunas Targarona, Eva (Universitat Politècnica de Catalunya, 2010-12-23)
Projecte Final de Màster Oficial
Accés obertCatalà: L'estimació de canal en receptors wireless esdevé un factor determinant a l'hora de incrementar les prestacions dels sistemes sense fils per tal de satisfer les exigències cada vegades més elevades dels consumidors ... -
Sparse correlation matching-based spectrum sensing for open spectrum communications
Lagunas Targarona, Eva; Nájar Martón, Montserrat (2012-02)
Article
Accés obertTo deal with the current spectrum scarcity problem and exploiting the fact that exclusive access through tightly regulated licensing leads to idle spectrum, cognitive radio has been proposed as a way to reuse this ... -
Spatial sparsity based direct positioning for IR-UWB in IEEE 802.15.4a channels
Lagunas Targarona, Eva; Navarro, Mònica; Closas Gómez, Pau; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, we focus on the application of Compressive Sensing (CS) techniques to Impulse Radio (IR) Ultra-WideBand (UWB) positioning systems under indoor propagation environments. Direct Position Estimation (DPE) ... -
Spectral feature detection with Sub-Nyquist sampling for wideband spectrum sensing
Lagunas Targarona, Eva; Nájar Martón, Montserrat (2015-07-01)
Article
Accés obertCompressive sensing (CS) has been successfully applied to alleviate the sampling bottleneck in wideband spectrum sensing leveraging the sparsity described by the low spectral occupancy of the licensed radios. However, the ... -
TOA Estimation in UWB: Comparison between time and frequency domain processing
Lagunas Targarona, Eva; Taponecco, Lorenzo; Nájar Martón, Montserrat; D'Amico, Antonio (2010)
Text en actes de congrés
Accés obertA comparison between time and frequency domain TOA estimators compliant with the 802.15.4a Standard has been made. The time domain estimator is done in two stages. One has the goal of identify the rst pulse in each symbol ... -
Transmit beamforming design with received-Interference power constraints: The Zero-Forcing Relaxation
Lagunas Targarona, Eva; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A.; Vázquez Oliver, Miguel Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertThe use of multi-antenna transmitters is emerging as an essential technology of the future wireless communication systems. While Zero-Forcing Beamforming (ZFB) has become the most popular low-complexity transmit beamforming ... -
Wall mitigation techniques for indoor sensing within the compressive sensing framework
Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialCompressive sensing (CS) for urban operations and through-the-wall radar imaging has been shown to be successful in fast data acquisition and moving target localizations. However, the research work in this area thus ...