Detection and Combining Techniques for Asynchronous Random Access with Time Diversity

Asynchronous random access (RA) protocols are particularly attractive for their simplicity and avoidance of tight synchronization requirements. Recent enhancements have shown that the use of successive interference cancellation (SIC) can largely boost the performance of these schemes. A further step forward in the performance can be attained when diversity combining techniques are applied. In order to enable combining, the detection and association of the packets to their transmitters has to be done prior to decoding. We present a solution to this problem, that articulates into two phases. Non-coherent soft-correlation as well as interference-aware soft-correlation are used for packet detection. We evaluate the detection capabilities of both solutions via numerical simulations. We also evaluate numerically the spectral efficiency achieved by the proposed approach, highlighting its benefits.Comment: 6 pages, 7 figures. Work has been submitted to the 11th International ITG Conference on Systems, Communications and Coding 201

The Impact of Social Curiosity on Information Spreading on Networks

Most information spreading models consider that all individuals are identical psychologically. They ignore, for instance, the curiosity level of people, which may indicate that they can be influenced to seek for information given their interest. For example, the game Pok\'emon GO spread rapidly because of the aroused curiosity among users. This paper proposes an information propagation model considering the curiosity level of each individual, which is a dynamical parameter that evolves over time. We evaluate the efficiency of our model in contrast to traditional information propagation models, like SIR or IC, and perform analysis on different types of artificial and real-world networks, like Google+, Facebook, and the United States roads map. We present a mean-field approach that reproduces with a good accuracy the evolution of macroscopic quantities, such as the density of stiflers, for the system's behavior with the curiosity. We also obtain an analytical solution of the mean-field equations that allows to predicts a transition from a phase where the information remains confined to a small number of users to a phase where it spreads over a large fraction of the population. The results indicate that the curiosity increases the information spreading in all networks as compared with the spreading without curiosity, and that this increase is larger in spatial networks than in social networks. When the curiosity is taken into account, the maximum number of informed individuals is reached close to the transition point. Since curious people are more open to a new product, concepts, and ideas, this is an important factor to be considered in propagation modeling. Our results contribute to the understanding of the interplay between diffusion process and dynamical heterogeneous transmission in social networks.Comment: 8 pages, 5 figure

From 5G to 6G: Has the Time for Modern Random Access Come?

This short paper proposes the use of modern random access for IoT applications in 6G. A short overview of recent advances in uncoordinated medium access is provided, highlighting the gains that can be achieved by leveraging smart protocol design intertwined with advanced signal processing techniques at the receiver. The authors' vision on the benefits such schemes can yield for beyond-5G systems is presented, with the aim to trigger further discussion.Comment: 2 pages, 1 figure, presented at 6G Summit, Levi, Finland, 201

Currito : juguete lírico en un acto

Al final del texto consta: Estrenada en la noche del 15 de diciembre de 1883, en el Teatro Cervantes de SevillaCopia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 201

Miedo y habilidades sociales en el contexto pluricultural de Ceuta

Este trabajo tiene como objetivo fundamental conocer los tipos, niveles y relaciones del Miedo y las Habilidades Sociales del alumnado de la ciudad de Ceuta. Se contó con 1186 participantes, de 9 centros educativos distintos, que reflejan la pluriculturalidad de la ciudad; de los cuales, el 57’8% son niñas y el 42’2% varones, y el 58’9% de cultura/ religión musulmana y el 41’1% cristianos. Como instrumentos de evaluación se emplearon la adaptación de Ascensio, Vila, Robles-García, Páez, Fresán y Vázquez (2012) del Inventario de Miedo para Niños (FSSC-II) y la de Matesanz (2006) del Inventario de Temores (FSS), junto con la EHS (Escala de Habilidades Sociales, Gismero, 2000). Los resultados reflejan niveles medios de Miedo y medio-altos en las Habilidades Sociales, influyendo en ellas las sociodemográficas de edad, sexo, cultura/religión y estatus socio-económico-cultural. Existe relación entre Miedo y las Habilidades Sociales, aumentado estas últimas a medida que descienden las puntuaciones en Miedo.The main objective of this paper is to reflect the types and levels of Fear and Social Skills, and the influence over each other, of students in the city of Ceuta. We focused on 1186 participants from 9 different educational institutions; 42.2% are boys and 57.8% girls; 58.9% are Muslims and 41.1% Christians. The techniques used in this survey are Fear Survey Schedule for Children (FSSC-II), adapted for its use in the Spanish language by Ascensio, et al. (2012),the Matesanz, (2006) adaptation of Fear Survey Schedule, as well as the EHS (Gismero, 2000).The results show medium levels on Fear and medium-high levels on Social Skills, and they are influenced by the sociodemographic factors of age, gender, customs/religion and socioeconomic and cultural. We have also found a relationship between Fear and Social Skills

Gender differences over initial a validation of a test under construction to asses Emotional Intelligence at a sample of students from Secondary Education

El objetivo fue elaborar un cuestionario para evaluar la Inteligencia Emocional (IE) destinado a una muestra juvenil. Se contó con una muestra de 557 participantes. Como instrumentos de evaluación se emplearon un test elaborado para la evaluación de la IE, junto con una adaptación propia de la EHS (Gismero, 2000). Los resultados obtenidos reflejan niveles de fiabilidad aceptables. Las dimensiones esperadas fueron diferentes para ambos géneros, apareciendo intercorrelaciones positivas entre los totales y las dimensiones que lo conforman. Este cuestionario se muestra como instrumento adecuado para evaluar estas capacidades en la población juvenil, siendo más indicado aplicar el análisis a ambos géneros por separadoThe objective of this paper is to develop a questionnaire to assess Emotional Intelligence (EI), aimed at a sample of students from Secondary Education..We focused on 557.The techniques used in this survey are a test developed to assess EI in teenagers and a similar adaptation of EHS (Gismero, 2000). The results show high levels of reliability for both genders. The dimensions are different (4 girls and 5 boys) for both genders. There are positive correlations between totals and the dimensions that make them. We found significant correlations between the two scales. Therefore this questionnaire is an appropriate tool to evaluate these capabilities after making some modifications in future works. It is more appropriate to apply the analysis separatel

e-Report Generator Supporting Communications and Fieldwork: A Practical Case of Electrical Network Expansion Projects

In this piece of work we present a simple way to incorporate Geographical Information System tools that have been developed using open source software in order to help the different processes in the expansion of the electrical network. This is accomplished by developing a novel fieldwork tool that provides the user with automatically generated enriched e-reports that include information about every one of the involved private real estates in a specific project. These reports are an eco-friendly alternative to paper format, and can be accessed by clients using any kind of personal device with a minimal set of technical requirements

Relaciones entre rendimiento e inteligencia emocional en secundaria

Este trabajo tiene como objetivo analizar los tipos y niveles de Rendimiento Académico e Inteligencia Emocional, en función de la edad, género, cultura y estrato socioeconómico, así como contemplar las relaciones entre ambas variables. Para ello, se ha contado con 811 participantes. Considerando la cultura, el grupo mayoritario es el de religión musulmana (71.6%), siendo el 46.1% varones y el resto de la muestra (53.9%) mujeres. Como instrumentos de evaluación se han empleado un cuestionario elaborado para evaluar la E y las calificaciones de los alumnos. En IE aparecen niveles medio-altos, influyendo la edad, el género, la cultura/religión y el estatus. Aparecen niveles medios en RA, influyendo edad, cultura y estatus. Se halló relación entre RA e IE, siendo directamente proporcionalesThis work has as main objective which in to analyze the types and levels of Academic Achievement and Emotional Intelligence, according to age, gender, religion and socioeconomic and cultural factor, as well as the links between both variables. To make that possible we focused on 811 participants; 71.6% of the total were Muslims and 28.4% Roman Catholic, 46.1% were male and 53.9% female. The techniques used in this survey were an EI questionnaire, as well as the students' grades. The results show medium-high levels of EI. This is influenced by age, gender, culture and socioeconomic and cultural factor. We found medium levels of AA. This is influenced by age, culture and socioeconomic and cultural factor. There is a statistically significant relationship between AA and EI. This relationship is directly proportiona

Influence of fear in academic achievement of the teenager: the pluricultural context of Ceuta

Este trabajo tiene como objetivo conocer los tipos y relaciones del Miedo y el Rendimiento Académico (RA) en alumnado, de 12 a 18 años, en la ciudad de Ceuta. Se contó con 557 participantes, que reflejan las características de un contexto pluricultural. El 54.2% fueron chicas, el 45.8% varones, el 64.5% musulmanes, el 35.5% cristianos. Como instrumentos de evaluación se han empleado la adaptación de Ascensio, Vila, Robles-García, Páez, Fresán y Vázquez (2012) del Inventario de Miedo para Niños (FSSC-II) y las calificaciones de los alumnos. Se reflejan niveles medio-bajos de miedo y medios en RA, influyendo en ellos las sociodemográficas de edad y cultura/religión. El género sólo influye en el Miedo y el estatus en el RA. Se obtuvo relación estadísticamente significativa entre Miedo y RA.We want to reflect the types of Fear and Academic Achievement (AA), and the influence over each other, of teenagers from 12 to 18 in Ceuta. We focused on 557 participants that reflect multicultural features; 45.8% are boys, 54.2% girls; 64.5% are Muslims and 35.5% Christians. The techniques used in this survey are FSSC-II (Ascensio et al., 2012), as well as the children's grades. The results show mid-low levels on Fear and medium in Achievement. They are influenced in a very different way by the sociodemographic factors of age and customs/religion. The gender factor only affects the fear variable and socioeconomic and cultural on Achievement. We have also found a statistically significant relationship between Fear and Academic Achievement

Rayman: Interoperability use of Meteorological Observation

The observation of atmospheric phenomena enables generating of knowledge about the weather and meteors occurrence in a region. When this information is georeferenced it becomes useful for a great number of professional and public activities in the field of e.g. building, infrastructures, aeronautics, biota, tourism, agriculture and energy. At the present time access to that information is limited. Few meteorological agencies apply geo-Standards, hindering the development of GIS tools for monitoring, threshold alerts and decision support helping. This work describes how public agencies publish meteorological data and the solution developed at the Spanish Electrical Network (REE) to store the information provided by the Spanish Meteorological Agency (AEMET). The implemented solution enables the access to the weather observations collected by the meteorological agency and the rays captured by the detection network in a interoperable way and the exploitation, by as well a desktop GIS capable of connecting with Oracle-Spatial database as through the interfaces of the OGC standardized services (WMS, WFS and SOS)