Detection and Mitigation of DoS and DDoS Attacks in IoT-Based Stateful SDN: An Experimental Approach

The expected advent of the Internet of Things (IoT) has triggered a large demand of embedded devices, which envisions the autonomous interaction of sensors and actuators while offering all sort of smart services. However, these IoT devices are limited in computation, storage, and network capacity, which makes them easy to hack and compromise. To achieve secure development of IoT, it is necessary to engineer scalable security solutions optimized for the IoT ecosystem. To this end, Software Defined Networking (SDN) is a promising paradigm that serves as a pillar in the fifth generation of mobile systems (5G) that could help to detect and mitigate Denial of Service (DoS) and Distributed DoS (DDoS) threats. In this work, we propose to experimentally evaluate an entropy-based solution to detect and mitigate DoS and DDoS attacks in IoT scenarios using a stateful SDN data plane. The obtained results demonstrate for the first time the effectiveness of this technique targeting real IoT data traffic.This research was funded by EU, European Regional Development Fund, and the regional government of Extremadura, Spain, grant number IB18003, the Spanish Ministry of Science, Innovation and Universities grant numbers TIN2016-75097-P, RTI2018-102002-A-I00, PEJ2018-003648-A and FEDER and Junta de Andalucía grant number B-TIC-402-UGR18

Proposal and analysis of integrated PTN architecture in the mobile backhaul to improve the QoS of HetNets

Los rápidos avances de las tecnologías de dispositivos móviles han implicado que la red de acceso debe evolucionar y desarrollar nuevas estrategias para satisfacer las necesidades de los usuarios. La red heterogénea (HetNet) permite una estrategia de implementación flexible y ofrece soluciones económicamente viables para mejorar la escalabilidad de red y cobertura en interiores. Este tema emergente ha captado la atención de la comunidad científica y la industria debido a la importancia de estas redes para satisfacer la demanda de servicios de datos. Para proporcionar esta demanda, deben satisfacerse diferentes parámetros de calidad de servicio (QoS). En este trabajo, presentamos un estudio sobre los últimos avances y los temas de investigación sobre movilidad en conjunción con protocolos de conmutación de etiquetas multiprotocolo (MPLS) de paquetes basado en redes de transporte (PTN) para proporcionar QoS en redes heterogéneas inalámbricas. Se presentan diversos protocolos de gestión móvil y su interacción con la red de retorno móvil yred básica por paquetes. Una nueva arquitectura denominada Proxy integrado Mobile MPLS-TP (MIP-TP) se expone también a reducir los costos y mejorar la señalización de la QoS en HetNets con altas tasas de movilidad.The rapid progress made in mobile device technologies has implied that the access network must evolute and develop new strategies to satisfy the requirements of the users. Heterogeneous network (HetNet) allows for a flexible deployment strategy and offers economically viable solutions to improve network scalability and indoor coverage. This emerging topic has caught the attention of the research community and the industry because of the importance of these networks to satisfy the demand of data services. To provide this demand, different parameters of quality of service (QoS) must be satisfied. In this paper, we present a study on recent advances and open research issues on Mobility Protocols in conjunction with Multi-Protocol Label Switching (MPLS)-based packet transport networks (PTN) to provide QoS in wireless heterogeneous networks. Various mobile management protocols and their interaction with the mobile backhaul and packet core network are briefly introduced. A new architecture called Integrated Proxy Mobile MPLS-TP (IPM-TP) is also outlined to reduce the signalling cost and improve the QoS in HetNets with high rates of mobility.Unión Europea. Fondos Europeos de Desarrollo Regional (FEDER). Proyecto SOE4/P3/E804peerReviewe

A hybrid DMM solution and trade-off analysis for future wireless networks

Documentos apresentados no âmbito do reconhecimento de graus e diplomas estrangeiro

Designing problem-specific operators for solving the Cell Switch-Off problem in ultra-dense 5G networks with hybrid MOEAs

The massive deployment of base stations is one of the key pillars of the fifth generation (5G) of mobile communications. However, this network densification entails high energy consumption that must be addressed to enhance the sustainability of this industry. This work faces this problem from a multi-objective optimization perspective, in which both energy efficiency and quality of service criteria are taken into account. To do so, several newly problem-specific operators have been designed so as to engineer hybrid multi-objective evolutionary metaheuristics (MOEAs) that bring expert knowledge of the domain to the search of the algorithms. These hybrid approaches have been able to improve upon canonical versions of the algorithms, clearly showing the contributions of our approach. Furthermore, this paper tests the hypothesis that the hybridization using several of those problem-specific operators simultaneously can enhance the search of MOEAs that are endowed only with a single one.Funding for open access charge: Universidad de Málaga / CBUA This work has been partially funded by the Spanish Ministry of Science and Innovation via grant PID2020-112545RB-C54, by the European Union NextGenerationEU/PRTR under grants TED2021-131699B-I00 and TED2021-129938B-I00 (MCIN/AEI/10.13039/501100011033, FEDER) and the Andalusian PAIDI program with grants A-TIC-608-UGR20, P18.RT.4830, and PYC20-RE-012-UGR. The authors also thank the Supercomputing and Bioinformatics Center of the Universidad de Málaga, for providing its services and the Picasso supercomputer facilities to perform the experiments (http://www.scbi.uma.es/). Funding for open access charge: Universidad de Málaga/CBUA

Approaching the reality of non-traditional students and graduates in the current labour market

La situación del mercado laboral actual se caracteriza por un aumento de la competitividad y mayores exigencias de cualificación para el desempeño de puestos. Nos basamos en teorías sociológicas para reflexionar sobre cómo los discursos de meritocracia y la valoración de unos conocimientos y no otros, perjudica a los estudiantes y graduados no tradicionales, quienes poseen una impresionante gama de recursos internos y de competencias que han sido históricamente mal reconocidas. Con el objetivo de comprender la realidad de los estudiantes y graduados no tradicionales en el mercado laboral, seguimos un enfoque cualitativo con la realización de entrevistas en profundidad a los diferentes agentes involucrados para analizar los factores que influyen en el acceso al empleo, en las barreras que encuentran los graduados no tradicionales y las fortalezas no reconocidas que traen estos sujetos. Los resultados apuntan a que, a pesar de que los procesos de selección incluyen expresiones de justicia y equidad, siguen repr oduciendo las desigualdades y sitúan en desventaja a los perfiles no tradicionales. Sería necesario responsabilizar a los miembros de las instituciones para dichos procesos se basen en prácticas de justicia socialThe current labour market situation is characterised by increased competitiveness and higher qualification requirements for job performance. We rely on sociological theories to reflect on how the discourses of meritocracy and the valuation of some knowledge and not others, harms non-traditional students and graduates who possess an impressive range of internal resources and skills that have historically been poorly recognized. In order to understand the reality of non-traditional students and graduates in today's labour market, we follow a qualitative approach by conducting in depth interviews with the different agents involved to analyse the factors that influence access to employment, the barriers that non-traditional graduates encounter, and the unrecognised strengths that these subjects bring. The results indicate that, despite that selection processes include expressions of justice and equity, they continue reproducing inequal ities and place non-traditional profiles at a disadvantage. It would be necessary to hold members of institutions accountable for such processes based on social justice practice

Severe beak deformity in Melopsittacus undulatus caused by Knemidocoptes pilae

Se describe un brote de sarna Knemidocoptic causada por Knemidocoptes pilae en periquitos australianos enjaulados (Melopsittacus undulatus), del parque público de L'Eliana (Valencia, España). Cinco individuos (5 de 70) muestran una malformación severa del pico, afectados por rhamphotheca, rhinotheca, y gnathotheca y una ligera desviación lateral de la mandíbula, que no impide, sin embargo, la alimentación o el aseo.An outbreak of knemidocoptic mange caused by Knemidocoptes pilae is described in caged Australian budgerigars (Melopsittacus undulatus) in a public park in L´Eliana (Valencia, Spain). Five individuals (5 out of 70) displayed severe malformation of the beak, with the rhamphotheca, rhinotheca, and gnathotheca affected and a slight lateral deviation of the jawbone, which did not, however, impede feeding or grooming.peerReviewe

Perceptions about the competences demanded by the labor market of the directors and managers of university practices

El Espacio Europeo de Educación superior nace para dar respuesta a las necesidades sociales y laborales emergidas a partir de los cambios producidos por la sociedad del 2.0 y la globalización de los mercados a fin de mejorar la calidad de la enseñanza superior, así como la competitividad y empleabilidad de los graduados universitarios. En esta coyuntura, examinamos las percepciones de las técnicas de orientación y gestoras de prácticas de la Universidad de Sevilla sobre los tipos de competencias demandadas por los empleadores. Para ello, se han realizado 5 entrevistas biográficas individuales. Estos testimonios pueden mejorar las políticas y prácticas de las un iversidades con respecto a la empleabilidad de los graduados. Los testimonios de las informantes muestran que los empleadores exigen, en su mayoría, habilidades técnicas y genéricas; y que precisamente, las transversales son las que en menor medida se adquieren en la universidad si bien se destaca la formación en habilidades específicas. Así, estos testimonios muestran que hay que reajustar los planes de estudio para responder a las necesidades del mercado, promover la empleabilidad de los graduados y mejorar la calidad de la educación superiorThe European Higher Education Area was born to respond to social and labor needs emerged from the changes produced by the 2.0 society and the globalization of markets in order to improve the quality of higher education as well as competitiveness and employability of university graduates. At this juncture, we examine the perceptions of the techniques of orientation and management practices of the University of Seville on the types of competencies demanded by employers. For this, 5 individual biographical interviews have been carried out. These testimonies can improve the policies and practices of universities with respect to the employability of graduates. The testimonies of the informants show that employers demand, for the most part, technical and generic skills; and that, precisely, the transversal ones are those that to a lesser extent are acquired in the university, although the training in specific skills stands out. Thus, the testimonies show that study plans must be readjusted to respond to market needs, promote the employability of graduates and improve the quality of higher education

Impacto de la heterogeneidad espacial del tráfico de red en el problema del apagado de celdas en redes ultra-densas.

The ultra-dense deployment of small base stations is one of the enabling technologies for the next generation of mobile networks (5G and 6G), which leads to an increase in the energy consumption of the infrastructure. This work addresses the selective switch-off of these base stations as a multi-objective optimization problem and analyzes its impact on complexity compared to a network traffic distribution modeling with different levels of irregularity (severity of heterogeneity) in the location of the user equipment. Experimental analysis with three multi-objective metaheuristics on nine different scenarios shows that as the spatial modeling of traffic becomes more irregular, the search for solutions by the algorithms is affected and can alter their ranking, while both network capacity and energy consumption decrease.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

CIBERER : Spanish national network for research on rare diseases: A highly productive collaborative initiative

Altres ajuts: Instituto de Salud Carlos III (ISCIII); Ministerio de Ciencia e Innovación.CIBER (Center for Biomedical Network Research; Centro de Investigación Biomédica En Red) is a public national consortium created in 2006 under the umbrella of the Spanish National Institute of Health Carlos III (ISCIII). This innovative research structure comprises 11 different specific areas dedicated to the main public health priorities in the National Health System. CIBERER, the thematic area of CIBER focused on rare diseases (RDs) currently consists of 75 research groups belonging to universities, research centers, and hospitals of the entire country. CIBERER's mission is to be a center prioritizing and favoring collaboration and cooperation between biomedical and clinical research groups, with special emphasis on the aspects of genetic, molecular, biochemical, and cellular research of RDs. This research is the basis for providing new tools for the diagnosis and therapy of low-prevalence diseases, in line with the International Rare Diseases Research Consortium (IRDiRC) objectives, thus favoring translational research between the scientific environment of the laboratory and the clinical setting of health centers. In this article, we intend to review CIBERER's 15-year journey and summarize the main results obtained in terms of internationalization, scientific production, contributions toward the discovery of new therapies and novel genes associated to diseases, cooperation with patients' associations and many other topics related to RD research