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2,108 results on '"Alonso, Antonio A."'

101. CO-CAC: A new approach to Call Admission Control for VoIP in 5G/WiFi UAV-based relay networks

Author

Universidad de Sevilla. Departamento de Ingeniería Telemática, Universidad de Sevilla. TIC154: Ingeniería Telemática., Mayor Gallego, Vicente Jesús, Estepa Alonso, Rafael María, Estepa Alonso, Antonio José, Universidad de Sevilla. Departamento de Ingeniería Telemática, Universidad de Sevilla. TIC154: Ingeniería Telemática., Mayor Gallego, Vicente Jesús, Estepa Alonso, Rafael María, and Estepa Alonso, Antonio José

Abstract

Voice over IP (VoIP) requires a Call Admission Control (CAC) mechanism in WiFi networks to preserve VoIP packet flows from excessive network delay or packet loss. Ideally, this mechanism should be integrated with the operational scenario, guarantee the quality of service of active calls, and maximize the number of concurrent calls. This paper presents a novel CAC scheme for VoIP in the context of a WiFi access network deployed with Unmanned Aerial Vehicles (UAVs) that relay to a backhaul 5G network. Our system, named Codec-Optimization CAC (CO-CAC), is integrated into each drone. It intercepts VoIP call control messages and decides on the admission of every new call based on a prediction of the WiFi network’s congestion level and the minimum quality of service desired for VoIP calls. To maximize the number of concurrent calls, CO-CAC proactively optimizes the codec settings of active calls by exchanging signaling with VoIP users. We have simulated CO-CAC in a 50 m 50 m scenario with four UAVs providing VoIP service to up to 200 ground users with IEEE 802.11ac WiFi terminals. Our results show that without CAC, the number of calls that did not meet a minimum quality level during the simulation was 10% and 90%, for 50 and 200 users, respectively. However, when CO-CAC was in place, all calls achieved minimum quality for up to 90 users without rejecting any call. For 200 users, only 25% of call attempts were rejected by the admission control scheme. These results were narrowly worse when the ground users moved randomly in the scenario.

Published
2023

102. Aqueous tape casting of lithium metazirconate (Li2ZrO3) thin sheets

Author

Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Agencia Estatal de Investigación (España), Orsetti, Nicolás Gabriel, Rosado, Eduardo, Alonso, Antonio, Lorenzo, Gabriel, Moreno, Rodrigo, Suárez, Gustavo, Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Agencia Estatal de Investigación (España), Orsetti, Nicolás Gabriel, Rosado, Eduardo, Alonso, Antonio, Lorenzo, Gabriel, Moreno, Rodrigo, and Suárez, Gustavo

Abstract

[EN] Tape cast Li2ZrO3 thin sheets were successfully made from aqueous suspensions with 30 vol% solid loading, using 0.5 wt% of ammonium polyacrylate and 0.2 wt% of tetramethyl ammonium hydroxide as organic stabilizers. The addition of 15 wt% of acrylic binder emulsion into the slip enabled to cast green tapes with suitable strength and plasticity for their easy folding. Zeta potential and rheological flow curves were analyzed to optimize the slip stability and composition, and the thermal behavior, phase composition and microstructure of the tapes were evaluated. After sintering at 1200 °C/15 h, tapes reached bulk densities close to 81% vs TD and exhibited a smooth flawless surface. SEM images showed an average particle size of 6.2 µm, and the XRD phase analysis revealed monoclinic Li2ZrO3 and only 6% of ZrO2. Overall, this detailed work will be relevant for further research on the manufacture of solid-state electrolytes based on Li2ZrO3 tapes.

Published
2023

103. Breast milk immune composition varies during the transition stage of lactation: characterization of immunotypes in the MAMI cohort

Author

Agencia Estatal de Investigación (España), European Commission, Fundació La Marató de TV3, #NODATA#, Rio-Aige, Karla, Fernández Bargalló, Aina, Vegas Lozano, Esteban, Miñarro Alonso, Antonio, Castell, Margarida, Selma Royo, Marta, Martínez Costa, Cecilia, Rodríguez Lagunas, María José, Collado, María Carmen, Pérez Cano, Francisco José, Agencia Estatal de Investigación (España), European Commission, Fundació La Marató de TV3, #NODATA#, Rio-Aige, Karla, Fernández Bargalló, Aina, Vegas Lozano, Esteban, Miñarro Alonso, Antonio, Castell, Margarida, Selma Royo, Marta, Martínez Costa, Cecilia, Rodríguez Lagunas, María José, Collado, María Carmen, and Pérez Cano, Francisco José

Abstract

Breast milk is a complex and dynamic fluid needed for infant development and protection due to its content of bioactive factors such as immunoglobulins (Igs). Most studies focus primarily on IgA, but other types of Ig and even other immune components (cytokines and adipokines) may also play significant roles in neonatal health. As a first step, we aimed to characterize the Ig profile, many cytokines, and two adipokines (leptin and adiponectin) at two sampling time points within the transitional stage, which is the least studied phase in terms of these components. The secondary objective was to identify different breast milk immunotypes in the MAMI cohort substudy, and finally, we further aimed at analyzing maternal and infant characteristics to identify influencing factors of breast milk immune composition.

Published
2023

104. Supplementary figure legends from 18F-fluoromisonidazole PET and Activity of Neoadjuvant Nintedanib in Early HER2-Negative Breast Cancer: A Window-of-Opportunity Randomized Trial

Author

Quintela-Fandino, Miguel, primary, Lluch, Ana, primary, Manso, Luis, primary, Calvo, Isabel, primary, Cortes, Javier, primary, García-Saenz, José Angel, primary, Gil-Gil, Miguel, primary, Martinez-Jánez, Noelia, primary, Gonzalez-Martin, Antonio, primary, Adrover, Encarna, primary, de Andres, Raquel, primary, Viñas, Gemma, primary, Llombart-Cussac, Antonio, primary, Alba, Emilio, primary, Guerra, Juan, primary, Bermejo, Begoña, primary, Zamora, Esther, primary, Moreno-Anton, Fernando, primary, Pernas Simon, Sonia, primary, Carrato, Alfredo, primary, Lopez-Alonso, Antonio, primary, Escudero, María José, primary, Campo, Ruth, primary, Carrasco, Eva, primary, Palacios, José, primary, Mulero, Francisca, primary, and Colomer, Ramon, primary

Published
2023
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105. Table S2 from 18F-fluoromisonidazole PET and Activity of Neoadjuvant Nintedanib in Early HER2-Negative Breast Cancer: A Window-of-Opportunity Randomized Trial

Author

Quintela-Fandino, Miguel, primary, Lluch, Ana, primary, Manso, Luis, primary, Calvo, Isabel, primary, Cortes, Javier, primary, García-Saenz, José Angel, primary, Gil-Gil, Miguel, primary, Martinez-Jánez, Noelia, primary, Gonzalez-Martin, Antonio, primary, Adrover, Encarna, primary, de Andres, Raquel, primary, Viñas, Gemma, primary, Llombart-Cussac, Antonio, primary, Alba, Emilio, primary, Guerra, Juan, primary, Bermejo, Begoña, primary, Zamora, Esther, primary, Moreno-Anton, Fernando, primary, Pernas Simon, Sonia, primary, Carrato, Alfredo, primary, Lopez-Alonso, Antonio, primary, Escudero, María José, primary, Campo, Ruth, primary, Carrasco, Eva, primary, Palacios, José, primary, Mulero, Francisca, primary, and Colomer, Ramon, primary

Published
2023
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106. Figure S2 from Randomized Phase 0/I Trial of the Mitochondrial Inhibitor ME-344 or Placebo Added to Bevacizumab in Early HER2-Negative Breast Cancer

Author

Quintela-Fandino, Miguel, primary, Morales, Serafín, primary, Cortés-Salgado, Alfonso, primary, Manso, Luis, primary, Apala, Juan V., primary, Muñoz, Manuel, primary, Gasol Cudos, Ariadna, primary, Salla Fortuny, Joel, primary, Gion, María, primary, Lopez-Alonso, Antonio, primary, Cortés, Javier, primary, Guerra, Juan, primary, Malón, Diego, primary, Caleiras, Eduardo, primary, Mulero, Francisca, primary, and Mouron, Silvana, primary

Published
2023
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107. Supplementary Figure 1 from 18F-fluoromisonidazole PET and Activity of Neoadjuvant Nintedanib in Early HER2-Negative Breast Cancer: A Window-of-Opportunity Randomized Trial

Author

Quintela-Fandino, Miguel, primary, Lluch, Ana, primary, Manso, Luis, primary, Calvo, Isabel, primary, Cortes, Javier, primary, García-Saenz, José Angel, primary, Gil-Gil, Miguel, primary, Martinez-Jánez, Noelia, primary, Gonzalez-Martin, Antonio, primary, Adrover, Encarna, primary, de Andres, Raquel, primary, Viñas, Gemma, primary, Llombart-Cussac, Antonio, primary, Alba, Emilio, primary, Guerra, Juan, primary, Bermejo, Begoña, primary, Zamora, Esther, primary, Moreno-Anton, Fernando, primary, Pernas Simon, Sonia, primary, Carrato, Alfredo, primary, Lopez-Alonso, Antonio, primary, Escudero, María José, primary, Campo, Ruth, primary, Carrasco, Eva, primary, Palacios, José, primary, Mulero, Francisca, primary, and Colomer, Ramon, primary

Published
2023
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109. Synergistic antifungal interaction of N-(butylcarbamothioyl) benzamide and amphotericin B against Cryptococcus neoformans

Author

Andriani, Gabriella Maria, primary, Spoladori, Lais Fernanda de Almeida, additional, Fabris, Marciéli, additional, Camargo, Priscila Goes, additional, Pereira, Patrícia Morais Lopes, additional, Santos, Jussevania Pereira, additional, Bartolomeu-Gonçalves, Guilherme, additional, Alonso, Lais, additional, Lancheros, Cesar Armando Contreras, additional, Alonso, Antonio, additional, Nakamura, Celso Vataru, additional, Macedo, Fernando, additional, Pinge-Filho, Phileno, additional, Yamauchi, Lucy Megumi, additional, Bispo, Marcelle de Lima Ferreira, additional, Tavares, Eliandro Reis, additional, and Yamada-Ogatta, Sueli Fumie, additional

Published
2023
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114. REMANTS OF SCHLEROPHYLLOUS FOREST IN THE MEDITERRANEAN ZONE OF CENTRAL CHILE: CHARACTERIZATION AND DISTRIBUTION OF FRAGMENTS/REMANENTES DEL BOSQUE ESCLEROFILO EN LA ZONA MEDITERRANEA DE CHILE CENTRAL: CARACTERIZACION Y DISTRIBUCION DE FRAGMENTOS/REMANESCENTES DO BOSQUE ESCLEROFILO NA ZONA MEDITERRANICA DO CHILE CENTRAL: CARACTERIZACAO E DISTRIBUICAO DE FRAGMENTOS

Author

Salinas, Roberto Garfias, Soto, Miguel Castillo, Gozalvo, Francisca Ruiz, Alonso, Antonio Vita, Intveen, Horacio Bown, and Cerrillo, Rafael Navarro

Published
2018

115. Blockchain-Based Service-Oriented Architecture for Consent Management, Access Control, and Auditing

Author

Román Martínez, Isabel, Calvillo Arbizu, Jorge, Mayor Gallego, Vicente Jesús, Madinabeitia Luque, Germán, Estepa Alonso, Antonio José, Estepa Alonso, Rafael María, Universidad de Sevilla. Departamento de Ingeniería Telemática, Universidad de Sevilla. TIC154: Departamento de Ingeniería Telemática, and Ministerio de Ciencia e Innovación

Subjects
Blockchain, BPM, Consent management, FHIR, SOA, GDPR
Abstract

Continuity of care requires the exchange of health information among organizations and care teams. The EU General Data Protection Regulation (GDPR) establishes that subject of care should give explicit consent to the treatment of her personal data, and organizations must obey the individual’s will. Nevertheless, few solutions focus on guaranteeing the proper execution of consents. We propose a serviceoriented architecture, backed by blockchain technology, that enables: (1) tamper-proof and immutable storage of subject of care consents; (2) a fine-grained access control for protecting health data according to consents; and (3) auditing tasks for supervisory authorities (or subjects of care themselves) to assess that healthcare organizations comply with GDPR and granted consents. Standards for health information exchange and access control are adopted to guarantee interoperability. Access control events and the subject of care consents are maintained on a blockchain, providing a trusted collaboration between organizations, supervisory authorities, and individuals. A prototype of the architecture has been implemented as a proof of concept to evaluate the performance of critical components. The application of subject of care consent to control the treatment of personal health data in federated and distributed environments is a pressing concern. The experimental results show that blockchain can effectively support sharing consent and audit events among healthcare organizations, supervisory authorities, and individuals.

Published
2023

116. Scavengers,gatherers,hunters,farmers and walkers.the walking deadseries as educational resource for Prehistory

Author

Romero Alonso, Antonio J.

Subjects
Antropología, Sociedades neolíticas, Prehistory, Prehistoria, Post-apocalyptic fiction, Didáctica, Innovación docente, Hunters-gathererssocieties, Género post-apocalíptico, Anthropology, Teaching innovation, Educational, Sociedades cazadoras-recolectoras, Neolithicsocieties
Abstract

Las series televisivas de corte post-apocalíptico ofrecen al espectador la oportunidad de observar cómo se configura una sociedad desde un hipotético estadio inicial fruto de la destrucción de un sistema anterior. En la serie The Walking Dead (AMC Studios, 2010-2022), el colapso del sistema del capitalismo financiero y de las instituciones que lo soportan a raíz de la aparición de una epidemia que transforma a la población en zombis coloca a los personajes frente al reto de sobrevivir en condiciones extremas, algo que sólo puede lograrse a través de la reorganización de los supervivientes. El análisis de esta organización económica, territorial, social y política desde una óptica (pre)histórica y su crítica a la luz de los datos que nos ofrecen Ciencias Sociales como la Arqueología y la Antropología permiten que la serie The Walking Dead sea empleada como herramienta didáctica para conseguir una mayor comprensión de las sociedades cazadoras-recolectoras y primeras productoras de la Prehistoria. Post-apocalyptic TV shows offer viewers the opportunity to observe how a society is constructed from a hypothetical initial stage resulting from the destruction of a previous system. In the series The Walking Dead(AMC Studios, 2010-2022), financial capitalism and the institutions that support it collapse due to an epidemic outbreak that turn the population into zombies. As a result, the characters must confront the challenge of surviving in extreme conditions, something that can only be achieved through the reorganizationof the survivors. The analysis of this economic, territorial, social, and political organizationfrom a (pre)historical perspective and its critical review in the light of the data provided by social sciences such as archaeology and anthropology allow The Walking Deadseries to be used as a didactic resource to achieve a better understanding of hunters-gatherers and early producer prehistoric societies.

Published
2023

117. Smart home anomaly-based IDS: architecture proposal and case study

Author

Lara Romero, Agustín Walabonso, Mayor Gallego, Vicente Jesús, Estepa Alonso, Rafael María, Estepa Alonso, Antonio José, Díaz Verdejo, Jesús, Universidad de Sevilla. Departamento de Ingeniería Telemática, Universidad de Sevilla. TIC154: Departamento de Ingeniería Telemática, Ministerio de Ciencia e Innovación (MICIN). España, Agencia Estatal de Investigación. España, Fondo Europeo de Desarrollo Regional (FEDER), and Consejería de Transformación Económica, Industria, Conocimiento y Universidades. Junta de Andalucía

Subjects
Smart home, A-IDS, IDS architecture proposal, Anomaly detection, IDS
Abstract

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). The complexity and diversity of the technologies involved in the Internet of Things (IoT) challenge the generalization of security solutions based on anomaly detection, which should fit the particularities of each context and deployment and allow for performance comparison. In this work, we provide a flexible architecture based on building blocks suited for detecting anomalies in the network traffic and the application-layer data exchanged by IoT devices in the context of Smart Home. Following this architecture, we have defined a particular Intrusion Detector System (IDS) for a case study that uses a public dataset with the electrical consumption of 21 home devices over one year. In particular, we have defined ten Indicators of Compromise (IoC) to detect network attacks and two anomaly detectors to detect false command or data injection attacks. We have also included a signature-based IDS (Snort) to extend the detection range to known attacks. We have reproduced eight network attacks (e.g., DoS, scanning) and four False Command or Data Injection attacks to test our IDS performance. The results show that all attacks were successfully detected by our IoCs and anomaly detectors with a false positive rate lower than 0.3%. Signature detection was able to detect only 4 out of 12 attacks. Our architecture and the IDS developed can be a reference for developing future IDS suited to different contexts or use cases. Given that we use a public dataset, our contribution can also serve as a baseline for comparison with new techniques that improve detection performance.

Published
2023

118. A Navigation System for a High-Speed Professional Cleaning Robot

Author

Azkune, Gorka, Astiz, Mikel, Esnaola, Urko, Antero, Unai, Sogorb, Jose Vicente, Alonso, Antonio, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Groß, Roderich, editor, Alboul, Lyuba, editor, Melhuish, Chris, editor, Witkowski, Mark, editor, Prescott, Tony J., editor, and Penders, Jacques, editor

Published
2011
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123. A global analysis of Y-chromosomal haplotype diversity for 23 STR loci

Author

Purps, Josephine, Siegert, Sabine, Willuweit, Sascha, Nagy, Marion, Alves, Cíntia, Salazar, Renato, Angustia, Sheila M.T., Santos, Lorna H., Anslinger, Katja, Bayer, Birgit, Ayub, Qasim, Wei, Wei, Xue, Yali, Tyler-Smith, Chris, Bafalluy, Miriam Baeta, Martínez-Jarreta, Begoña, Egyed, Balazs, Balitzki, Beate, Tschumi, Sibylle, Ballard, David, Court, Denise Syndercombe, Barrantes, Xinia, Bäßler, Gerhard, Wiest, Tina, Berger, Burkhard, Niederstätter, Harald, Parson, Walther, Davis, Carey, Budowle, Bruce, Burri, Helen, Borer, Urs, Koller, Christoph, Carvalho, Elizeu F., Domingues, Patricia M., Chamoun, Wafaa Takash, Coble, Michael D., Hill, Carolyn R., Corach, Daniel, Caputo, Mariela, D’Amato, Maria E., Davison, Sean, Decorte, Ronny, Larmuseau, Maarten H.D., Ottoni, Claudio, Rickards, Olga, Lu, Di, Jiang, Chengtao, Dobosz, Tadeusz, Jonkisz, Anna, Frank, William E., Furac, Ivana, Gehrig, Christian, Castella, Vincent, Grskovic, Branka, Haas, Cordula, Wobst, Jana, Hadzic, Gavrilo, Drobnic, Katja, Honda, Katsuya, Hou, Yiping, Zhou, Di, Li, Yan, Hu, Shengping, Chen, Shenglan, Immel, Uta-Dorothee, Lessig, Rüdiger, Jakovski, Zlatko, Ilievska, Tanja, Klann, Anja E., García, Cristina Cano, de Knijff, Peter, Kraaijenbrink, Thirsa, Kondili, Aikaterini, Miniati, Penelope, Vouropoulou, Maria, Kovacevic, Lejla, Marjanovic, Damir, Lindner, Iris, Mansour, Issam, Al-Azem, Mouayyad, Andari, Ansar El, Marino, Miguel, Furfuro, Sandra, Locarno, Laura, Martín, Pablo, Luque, Gracia M., Alonso, Antonio, Miranda, Luís Souto, Moreira, Helena, Mizuno, Natsuko, Iwashima, Yasuki, Neto, Rodrigo S. Moura, Nogueira, Tatiana L.S., Silva, Rosane, Nastainczyk-Wulf, Marina, Edelmann, Jeanett, Kohl, Michael, Nie, Shengjie, Wang, Xianping, Cheng, Baowen, Núñez, Carolina, Pancorbo, Marian Martínez de, Olofsson, Jill K., Morling, Niels, Onofri, Valerio, Tagliabracci, Adriano, Pamjav, Horolma, Volgyi, Antonia, Barany, Gusztav, Pawlowski, Ryszard, Maciejewska, Agnieszka, Pelotti, Susi, Pepinski, Witold, Abreu-Glowacka, Monica, Phillips, Christopher, Cárdenas, Jorge, Rey-Gonzalez, Danel, Salas, Antonio, Brisighelli, Francesca, Capelli, Cristian, Toscanini, Ulises, Piccinini, Andrea, Piglionica, Marilidia, Baldassarra, Stefania L., Ploski, Rafal, Konarzewska, Magdalena, Jastrzebska, Emila, Robino, Carlo, Sajantila, Antti, Palo, Jukka U., Guevara, Evelyn, Salvador, Jazelyn, Ungria, Maria Corazon De, Rodriguez, Jae Joseph Russell, Schmidt, Ulrike, Schlauderer, Nicola, Saukko, Pekka, Schneider, Peter M., Sirker, Miriam, Shin, Kyoung-Jin, Oh, Yu Na, Skitsa, Iulia, Ampati, Alexandra, Smith, Tobi-Gail, Calvit, Lina Solis de, Stenzl, Vlastimil, Capal, Thomas, Tillmar, Andreas, Nilsson, Helena, Turrina, Stefania, De Leo, Domenico, Verzeletti, Andrea, Cortellini, Venusia, Wetton, Jon H., Gwynne, Gareth M., Jobling, Mark A., Whittle, Martin R., Sumita, Denilce R., Wolańska-Nowak, Paulina, Yong, Rita Y.Y., Krawczak, Michael, Nothnagel, Michael, and Roewer, Lutz

Published
2014
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130. SEGURIDAD HÍDRICA, OPINIÓN PÚBLICA Y DECISORES POLÍTICOS. ESTUDIIOS DEL DISTRITO DE ARAL (KAZAJISTÁN).

Author

Alonso, Antonio and Khaibullina, Zhaniya

Subjects
WATER quality, RESEARCH personnel, WATER security, PUBLIC opinion, POLITICIANS
Abstract

Copyright of Revista UNISCI is the property of Unidad de Investigaciones Sobre Seguridad y Cooperacion International (UNISCI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023
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131. A Techno-Economic Appraisal of Green Diesel Generation through Hydrothermal Liquefaction, Leveraging Residual Resources from Seaweed and Fishing Sectors.

Author

Rosales-Asensio, Enrique, Segredo-Morales, Elisabet, Gómez-Marín, Natalia, Pulido-Alonso, Antonio, and Sierra, Carlos

Subjects
GREEN diesel fuels, BIOMASS liquefaction, FISH waste, NATURAL resources, NET present value, MACROCYSTIS
Abstract

This study examines the economic viability of an emerging technology for potential upscaling and commercialization in a specific location: the village of New Stuyahok, Alaska. The proposed technology is hydrothermal liquefaction, which utilizes kelp macroalgae and fishing waste as feedstock. These materials were chosen due to their easy availability in the village and their alignment with the local economy. The economic evaluation is based on the net present value (NPV) and sensitivity models. Different feedstock ratios (on a dry basis), such as 100:0, 50:50, and 30:70 of kelp and fishing waste, respectively, were evaluated to determine the optimal combination. The results indicated that the process is economically viable only when a high proportion of fishing waste is used. This can be ascribed to the constrained output yield of the kelp biomass and the relatively negligible influence exerted by alginate production on the NPV. However, the ratio 50:50 appears to be economically promising if the costs can be reduced by at least 13.5% or the benefits can be increased by 12.1%. Nevertheless, government support could play a crucial role in expediting the implementation of this technology once it becomes market-ready. This means being practical, scalable, and economically viable, enabling reduced investments or increased benefits that signify its readiness. Utilizing such a tool offers valuable insights into the framework of the proposed technology and the use of local natural resources. [ABSTRACT FROM AUTHOR]

Published
2023
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132. Deployment of UAV-mounted Access Points for VoWiFi Service with guaranteed QoS

Author

Mayor Gallego, Vicente Jesús, Estepa Alonso, Rafael María, Estepa Alonso, Antonio José, Madinabeitia Luque, Germán, Universidad de Sevilla. Departamento de Ingeniería Telemática, and Universidad de Sevilla. TIC154: Departamento de Ingeniería Telemática

Subjects
Voice over IP (VoIP), Wireless LAN, Unmanned Aerial Vehicle (UAV), Quality of Service (QoS)
Abstract

Unmanned Aerial Vehicle (UAV) networks have emerged as a promising means to provide wireless coverage in open geographical areas. Nevertheless, in wireless networks such as WiFi, signal coverage alone is insufficient to guarantee that network performance meets the quality of service (QoS) requirements of real-time communication services, as it also depends on the traffic load produced by ground users sharing the medium access. We formulate a new problem for UAVs optimal deployment in which the QoS level is guaranteed for real-time voice over WiFi (VoWiFi) communications. More specifically, our goal is to dispatch the minimum number of UAVs possible to provide VoWiFi service to a set of ground users subject to coverage, call-blocking probability, and QoS constraints. Optimal solutions are found using well-known heuristics that include K-means clusterization and genetic algorithms. Via numerical results, we show that the WiFi standard revision (e.g. IEEE 802.11a/b/g/n/ac) in use plays an important role in both coverage and QoS performance and hence, in the number of UAVs required to provide the service.

Published
2022

136. Database associated to Alonso et al. (2021)

Author

European Commission, Alonso, Antonio A. [0000-0001-8203-1799], Álvarez-Salgado, Xosé Antón [0000-0002-2387-9201], Antelo, L. T. [0000-0002-5355-5523], Álvarez-Salgado, Xosé Antón [xsalgado@iim.csic.es], Alonso, Antonio A., Álvarez-Salgado, Xosé Antón, Antelo, L. T., European Commission, Alonso, Antonio A. [0000-0001-8203-1799], Álvarez-Salgado, Xosé Antón [0000-0002-2387-9201], Antelo, L. T. [0000-0002-5355-5523], Álvarez-Salgado, Xosé Antón [xsalgado@iim.csic.es], Alonso, Antonio A., Álvarez-Salgado, Xosé Antón, and Antelo, L. T.

Abstract

Summary of the data from figures and tables presented in Alonso A.A., X.A. Álvarez-Salgado, L.T. Antelo (2021). Assessing the impact of bivlave aquaculture on the carbon circular economy. Journal of Cleaner Production 279, 123873. DOI: 10.1016/j.jclepro.2020.123873

Published
2021

146. The conservation status of the world’s reptiles

Author

Böhm, Monika, Collen, Ben, Baillie, Jonathan E.M., Bowles, Philip, Chanson, Janice, Cox, Neil, Hammerson, Geoffrey, Hoffmann, Michael, Livingstone, Suzanne R., Ram, Mala, Rhodin, Anders G.J., Stuart, Simon N., van Dijk, Peter Paul, Young, Bruce E., Afuang, Leticia E., Aghasyan, Aram, García, Andrés, Aguilar, César, Ajtic, Rastko, Akarsu, Ferdi, Alencar, Laura R.V., Allison, Allen, Ananjeva, Natalia, Anderson, Steve, Andrén, Claes, Ariano-Sánchez, Daniel, Arredondo, Juan Camilo, Auliya, Mark, Austin, Christopher C., Avci, Aziz, Baker, Patrick J., Barreto-Lima, André F., Barrio-Amorós, César L., Basu, Dhruvayothi, Bates, Michael F., Batistella, Alexandre, Bauer, Aaron, Bennett, Daniel, Böhme, Wolfgang, Broadley, Don, Brown, Rafe, Burgess, Joseph, Captain, Ashok, Carreira, Santiago, Castañeda, Maria del Rosario, Castro, Fernando, Catenazzi, Alessandro, Cedeño-Vázquez, José R., Chapple, David G., Cheylan, Marc, Cisneros-Heredia, Diego F., Cogalniceanu, Dan, Cogger, Hal, Corti, Claudia, Costa, Gabriel C., Couper, Patrick J., Courtney, Tony, Crnobrnja-Isailovic, Jelka, Crochet, Pierre-André, Crother, Brian, Cruz, Felix, Daltry, Jennifer C., Daniels, R.J. Ranjit, Das, Indraneil, de Silva, Anslem, Diesmos, Arvin C., Dirksen, Lutz, Doan, Tiffany M., Dodd, C. Kenneth, Jr., Doody, J. Sean, Dorcas, Michael E., Duarte de Barros Filho, Jose, Egan, Vincent T., El Mouden, El Hassan, Embert, Dirk, Espinoza, Robert E., Fallabrino, Alejandro, Feng, Xie, Feng, Zhao-Jun, Fitzgerald, Lee, Flores-Villela, Oscar, França, Frederico G.R., Frost, Darrell, Gadsden, Hector, Gamble, Tony, Ganesh, S.R., Garcia, Miguel A., García-Pérez, Juan E., Gatus, Joey, Gaulke, Maren, Geniez, Philippe, Georges, Arthur, Gerlach, Justin, Goldberg, Stephen, Gonzalez, Juan-Carlos T., Gower, David J., Grant, Tandora, Greenbaum, Eli, Grieco, Cristina, Guo, Peng, Hamilton, Alison M., Hare, Kelly, Hedges, S. Blair, Heideman, Neil, Hilton-Taylor, Craig, Hitchmough, Rod, Hollingsworth, Bradford, Hutchinson, Mark, Ineich, Ivan, Iverson, John, Jaksic, Fabian M., Jenkins, Richard, Joger, Ulrich, Jose, Reizl, Kaska, Yakup, Kaya, Uğur, Keogh, J. Scott, Köhler, Gunther, Kuchling, Gerald, Kumlutaş, Yusuf, Kwet, Axel, La Marca, Enrique, Lamar, William, Lane, Amanda, Lardner, Bjorn, Latta, Craig, Latta, Gabrielle, Lau, Michael, Lavin, Pablo, Lawson, Dwight, LeBreton, Matthew, Lehr, Edgar, Limpus, Duncan, Lipczynski, Nicola, Lobo, Aaron S., López-Luna, Marco A., Luiselli, Luca, Lukoschek, Vimoksalehi, Lundberg, Mikael, Lymberakis, Petros, Macey, Robert, Magnusson, William E., Mahler, D. Luke, Malhotra, Anita, Mariaux, Jean, Maritz, Bryan, Marques, Otavio A.V., Márquez, Rafael, Martins, Marcio, Masterson, Gavin, Mateo, José A., Mathew, Rosamma, Mathews, Nixon, Mayer, Gregory, McCranie, James R., Measey, G. John, Mendoza-Quijano, Fernando, Menegon, Michele, Métrailler, Sébastien, Milton, David A., Montgomery, Chad, Morato, Sérgio A.A., Mott, Tami, Muñoz-Alonso, Antonio, Murphy, John, Nguyen, Truong Q., Nilson, Göran, Nogueira, Cristiano, Núñez, Herman, Orlov, Nikolai, Ota, Hidetoshi, Ottenwalder, José, Papenfuss, Theodore, Pasachnik, Stesha, Passos, Paulo, Pauwels, Olivier S.G., Pérez-Buitrago, Néstor, Pérez-Mellado, Valentín, Pianka, Eric R., Pleguezuelos, Juan, Pollock, Caroline, Ponce-Campos, Paulino, Powell, Robert, Pupin, Fabio, Quintero Díaz, Gustavo E., Radder, Raju, Ramer, Jan, Rasmussen, Arne R., Raxworthy, Chris, Reynolds, Robert, Richman, Nadia, Rico, Edmund L., Riservato, Elisa, Rivas, Gilson, da Rocha, Pedro L.B., Rödel, Mark-Oliver, Rodríguez Schettino, Lourdes, Roosenburg, Willem M., Ross, James P., Sadek, Riyad, Sanders, Kate, Santos-Barrera, Georgina, Schleich, Hermann H., Schmidt, Benedikt R., Schmitz, Andreas, Sharifi, Mozafar, Shea, Glenn, Shi, Hai-Tao, Shine, Richard, Sindaco, Roberto, Slimani, Tahar, Somaweera, Ruchira, Spawls, Steve, Stafford, Peter, Stuebing, Rob, Sweet, Sam, Sy, Emerson, Temple, Helen J., Tognelli, Marcelo F., Tolley, Krystal, Tolson, Peter J., Tuniyev, Boris, Tuniyev, Sako, Üzüm, Nazan, van Buurt, Gerard, Van Sluys, Monique, Velasco, Alvaro, Vences, Miguel, Veselý, Milan, Vinke, Sabine, Vinke, Thomas, Vogel, Gernot, Vogrin, Milan, Vogt, Richard C., Wearn, Oliver R., Werner, Yehudah L., Whiting, Martin J., Wiewandt, Thomas, Wilkinson, John, Wilson, Byron, Wren, Sally, Zamin, Tara, Zhou, Kaiya, and Zug, George

Published
2013
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