Sandra Roger

ORCID: 0000-0003-4808-252X
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About
Contact & Profiles
Research Areas
  • Advanced MIMO Systems Optimization
  • Advanced Wireless Communication Techniques
  • Millimeter-Wave Propagation and Modeling
  • Agriculture and Rural Development Research
  • Wireless Communication Networks Research
  • French Urban and Social Studies
  • Topic Modeling
  • Vehicular Ad Hoc Networks (VANETs)
  • Natural Language Processing Techniques
  • Semantic Web and Ontologies
  • Error Correcting Code Techniques
  • Cooperative Communication and Network Coding
  • Dental Health and Care Utilization
  • E-Learning and Knowledge Management
  • Healthcare Systems and Practices
  • Engineering and Information Technology
  • Logic, Reasoning, and Knowledge
  • Educational Innovations and Technology
  • Educational Technology in Learning
  • Multiculturalism, Politics, Migration, Gender
  • Data Mining Algorithms and Applications
  • Microwave Engineering and Waveguides
  • Multi-Agent Systems and Negotiation
  • Journalism and Media Studies
  • Power Line Communications and Noise

Universitat de València
2017-2025

Universidad Carlos III de Madrid
2022

Hudson Institute
2018-2020

John Wiley & Sons (United States)
2018-2020

Société Française de Statistique
2020

Universitat Politècnica de València
2009-2019

PSG INSTITUTE OF TECHNOLOGY AND APPLIED RESEARCH
2018

University of Alicante
2006-2009

National University of Comahue
2001-2007

Science, Technology, Engineering, and Mathematics (STEM) are key disciplines towards tackling the challenges related to Sustainable Development Goals. However, evidence shows that women enrolling in these a smaller percentage than men, especially Engineering fields. As stated by United Nations Women section, increasing number of studying working STEM fields is fundamental achieving better solutions global challenges, since potential for innovation larger. In this paper, we present Girls4STEM...

10.3390/su12156051 article EN Sustainability 2020-07-28

As the standardization of network-assisted device-to-device (D2D) communications by Third Generation Partnership Project progresses, research community has started to explore technology potential new advanced features that will largely impact performance 5G networks. For 5G, D2D is becoming an integrative term emerging technologies take advantage proximity communicating entities in licensed and unlicensed spectra. The European project Mobile Wireless Communication Enablers for 2020...

10.1109/access.2016.2585188 article EN cc-by-nc-nd IEEE Access 2016-01-01

Integrated Sensing and Communication (ISAC) systems have emerged as a key component for Sixth Generation (6G) networks, enhancing resource efficiency enabling diverse applications. Currently, ISAC been recognized leading trend future standardization, i.e., International Mobile Telecommunications (IMT)-2030. As in the previous IMT-2020 emphasis has on developing methodology assessing network conditions, with one of crucial approaches incorporating system-level simulations. However, within...

10.3390/telecom6010004 article EN cc-by Telecom 2025-01-08

The long-term evolution multimedia broadcast multicast service (MBMS) infrastructure has been shown to efficiently fulfill the requirements of classical vehicle-to-vehicle services, such as cooperative awareness message and decentralized environmental notification delivery, which involve transmission same a set destination receivers in close proximity. When targeting autonomous driving applications, related 5G V2X collision avoidance (CCA), impose challenging latency reliability that cannot...

10.1109/tits.2018.2870198 article EN IEEE Transactions on Intelligent Transportation Systems 2018-10-08

Existing correlations between features extracted from Electroencephalography (EEG) signals and emotional aspects have motivated the development of a diversity EEG-based affect detection methods. Both intra-subject inter-subject approaches been used in this context. Intra-subject generally suffer small sample problem, require collection exhaustive data for each new user before system is usable. On contrary, models do not account personality physiological influence how individual feeling...

10.3390/s19132999 article EN cc-by Sensors 2019-07-08

Multicore and graphic processing units (GPUs) can be combined to efficiently implement signal-processing algorithms for communication systems, due their parallel capabilities. This paper proposes a fully fixed-complexity soft-output detector, which is suitable GPU implementation allows considerable decrease in the computational time required data detection stage multiple-input-multiple-output (MIMO) systems. A novel channel matrix preprocessing stage, based on column-norm ordering, developed...

10.1109/tvt.2012.2210576 article EN IEEE Transactions on Vehicular Technology 2012-08-22

The concept of sustainability has been recently extended to cover economic and social factors besides the traditional environmental ones. This paper reflects on potential mobile communication standards towards achieving sustainable mobility, with focus vehicular communications use cases in smart cities scenarios. In this context, intelligent transportation systems, including connected autonomous vehicles, will be key for developing affordable infrastructures services. We start by identifying...

10.1109/ojvt.2024.3375451 article EN cc-by IEEE Open Journal of Vehicular Technology 2024-01-01

In order to shed some useful light on the design of multi-connectivity (MC) solutions for vehicular-to anything (V2X) communications, this work evaluates performance different connectivity alternatives based LTE-Advanced support key intelligent transportation systems (ITS) services as CAM, DENM and platooning in a realistic highway scenario. particular, downlink unicast, multicast Single-Cell Point-to-Multipoint (SC-PTM), V2X sidelink modes have been benchmarked each ITS service separately....

10.1109/wcnc.2018.8377183 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2018-04-01

Mobile network operators are interested in providing Vehicle-to-Vehicle (V2V) communication services using their cellular infrastructure. Regional split of is one possible approach to support multi-operator infrastructure-based V2V communication. In this approach, a geographical area divided into non-overlapping regions, each served by unique operator. Its main drawback the interruption motivated inter-operator handover border areas, which prevents fulfillment maximum end-to-end (E2E)...

10.1109/tits.2019.2962097 article EN IEEE Transactions on Intelligent Transportation Systems 2020-01-07

Radio environment map (REM) reconstruction based on large-scale channel measurements is a promising technology for future mobility services involving vehicle-to-everything (V2X) communications. REMs provide contextual information which can be exploited to reduce V2X communication latency and control signaling, instance, through fast access state information. However, the accuracy of radio mapping techniques limited by availability measurements, require collection significant signaling...

10.1109/tvt.2023.3326935 article EN cc-by IEEE Transactions on Vehicular Technology 2023-10-23

Fast channel estimation in millimeter-wave (mmWave) systems is a fundamental enabler of high-gain beamforming, which boosts coverage and capacity. The stage typically involves an initial beam training process where subset the possible directions at transmitter receiver scanned along predefined codebook. Unfortunately, high number transmit receive antennas deployed mmWave increase complexity selection tasks. In this work, we tackle problem analog from different perspective than used by...

10.1109/twc.2021.3071315 article EN publisher-specific-oa IEEE Transactions on Wireless Communications 2021-04-14

The use of massive multiple-input multiple-output (MIMO) techniques for communication at millimeter-Wave (mmW) frequency bands has become a key enabler to meet the data rate demands upcoming fifth generation (5G) cellular systems. In particular, analog and hybrid beamforming solutions are receiving increasing attention as less expensive more power efficient alternatives fully digital precoding schemes. Despite their proven good performance in simple setups, suitability realistic systems with...

10.3390/s16101555 article EN cc-by Sensors 2016-09-22

Enhanced vehicle-to-everything (eV2X) communication is one of the most challenging use cases that fifth generation (5G) cellular mobile communications must address. In particular, eV2X includes some 5G vehicular applications targeting fully autonomous driving which require ultra-high reliability. The usual approach to providing based on single-connectivity transmission, for instance, through direct link between vehicles (PC5 interface), often fails at guaranteeing required To solve such a...

10.1109/access.2019.2897843 article EN cc-by-nc-nd IEEE Access 2019-01-01

Current cellular technologies are based on the concept of coherent communication, in which channel matrix used for demodulation is estimated via reference or pilot signals. Coherent systems, however, involve a significant increase signalling overhead, especially when number transmission points increased mobile changes rapidly, motivates use non-coherent techniques. This letter extends communications to multi-user (MU) multiple-input multiple-output (MIMO) framework by combining superposition...

10.1109/lsp.2014.2330854 article EN IEEE Signal Processing Letters 2014-06-19

This paper investigates the use of non-coherent communication techniques for open-loop transmission over temporally-correlated Rayleigh-fading MIMO channels. These perform data detection without knowing instantaneous channel coefficients. Three Multiple Input Output (MIMO) schemes, namely, differential unitary space-time modulation, block code, and Grassmannian signaling, are compared with several state-of-the-art training-based coherent schemes. shows that schemes meaningful alternatives to...

10.1109/access.2016.2580680 article EN cc-by-nc-nd IEEE Access 2016-01-01

It is known that sphere decoding (SD) methods can provide maximum-likelihood (ML) detection over Gaussian MIMO channels with lower complexity than the exhaustive search. Channel matrix condition number represents an important influence on performance of usual detectors. Throughout this paper, two particular cases a SD method called K-Best carry out combined in order to reduce computational predictable degradation. Algorithm selection based channel thresholding. suboptimal algorithm for...

10.1109/isccsp.2008.4537380 article EN 2008-03-01

With the advent of automated driving functions need for cooperation among vehicles becomes increasingly necessary. The availability high quality connectivity is an important factor successful and uninterrupted cooperative autonomous services. Flexible selection available options, increases probabilities to achieve maintain required Quality Service (QoS). Future will support multiple 5G communication interfaces e.g., cellular (Uu), sidelink (PC5). A RAN-based solution proposed in this paper...

10.1109/pimrc.2019.8904431 article EN 2019-09-01

Enhanced vehicle-to-everything (eV2X) communication is one of the key challenges to be addressed by fifth generation (5G) cellular mobile communications. In particular, eV2X includes some 5G vehicular applications targeting fully autonomous driving which require ultra-high reliability. Although communications are default assumed between single antennas located on roof transmitter and receiver vehicles, prior art has shown that there other antenna positions more suitable for V2X...

10.1109/tits.2020.3019530 article EN IEEE Transactions on Intelligent Transportation Systems 2020-09-09

Vehicle platoons involve groups of vehicles travelling together at a constant inter-vehicle distance, with different common benefits such as increasing road efficiency and fuel saving. platooning requires highly reliable wireless communications to keep the group structure carry out coordinated maneuvers in safe manner. Focusing on infrastructure-assisted cellular vehicle anything (V2X) communications, amount control information be exchanged between each platoon base station is critical...

10.3390/s20092440 article EN cc-by Sensors 2020-04-25

The use of many-core processors such as general purpose Graphic Processing Units (GPUs) has recently become attractive for the efficient implementation signal processing algorithms communication systems. This is due to cost-effectiveness o

10.3233/ica-2012-0410 article EN Integrated Computer-Aided Engineering 2012-09-25
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