Xabiel García Pañeda

• Doctor of Engineering
• University of Oviedo

ADAS (Advanced Driver Assistance Systems) are becoming increasingly popular in on-road vehicles due to their safety, productivity, and cost savings. In the same way, off-road vehicles can benefit from ADAS systems to improve the security of drivers and workers in industrial settings. In this work, we study, design, and develop a novel security syst...

Nowadays, the increase in the number of vehicles on the roads has brought about several problems such as an increase in traffic congestion and, consequently, in polluting emissions. These problems are especially severe in urban environments. It is crucial to perform a sustainable urban mobility plan to improve the traffic and therefore, reduce the...

Factories and industrial warehouses are environments in which accidents can be easily produced. People on foot work in the same place where heavy machinery is operating. Therefore, when accidents occur, they frequently have severe consequences. To reduce the number of accidents and their effects, there are strict regulations on the workplace and wo...

Since its inception, COVID-19 has changed several dynamics in society, both on a personal and professional level. Mobility was one of the most affected aspects, as a result of the necessary social distancing and preventive measures that had to be enacted by the various countries and which restricted, at various times, freedom of movement. The impac...

Previous work has demonstrated the feasibility of Bluetooth Low Energy (BLE) as an alternative technology for data transfers in inter-vehicular communication (IVC) scenarios. Bluetooth 5.x core specifications enhance the trade-off between energy requirements, communication range and flexibility. In this paper, we aim to analyse the potential of Blu...

The correct application of efficient and safe driving techniques plays an important role for professional drivers. Monitoring and analyzing driving data can promote changes in the sector in terms of the better use of vehicles, reduction in energy consumption, and improved on-road safety. However, the results in driving performance can vary consider...

Spain is one of the countries most affected by COVID-19. Until May 5, 2021 there have been 3.54 million people infected and 78,399 deaths according to the Johns Hopkins Institute. This has meant that Spain is one of the countries in the world where the most restrictive measures have been adopted and which have had a strong impact on the economic, s...

Factories of a certain size are full of industrial vehicles that perform different tasks. The characteristics of these vehicles with articulated arms and great power make them probable generators of accidents. These vehicles perform demanding actions in which the driver must pay the utmost attention not to run over a pedestrian or damage an adjacen...

A large percentage of traffic accidents are due to human errors. Driving behavior and driving stress influence the probability of making these mistakes. Both are influenced by multiple factors, among which might be elements such as age, gender, sleeping hours, or working hours. The objective of this paper is to study, in a real scenario and without...

The transport network and mobility aspects are constantly changing, and major changes are expected in the coming years in terms of safety and sustainability purposes. In this paper, we present the main conclusions and analysis of data collected from a survey of drivers in Spain and Portugal regarding user preferences, highlighting the main function...

Our roads the preparation of mobility studies has become an essential element when planning and regulating traffic. These studies have been carried out with all kinds of systems, such as cameras, on-track counting systems and, lately, with embedded devices. However, until now there have been no studies able to take into account how traffic situatio...

Road accidents and safe driving are one of the main concerns of transportation systems and the companies that explore different solutions to reduce the accident rate. The most interesting option to achieve this goal is through an on-board training of professional drivers to apply safe driving techniques during their work activity. The purpose of th...

Globalization has increased the number of road trips and vehicles. The result has been an intensification of traffic accidents, which are becoming one of the most important causes of death worldwide. Traffic accidents are often due to human error, the probability of which increases when the cognitive ability of the driver decreases. Cognitive capac...

In recent years, the number of on-board devices that provide information about the vehicle, the driving process and the environment has increased. Nevertheless, these devices can be very distracting. Head-up display devices (HUDs) and speech recognition may be good technologies to enrich the experience of drivers while keeping safety under control....

Evaluating driving from the point of view of efficiency is a complex task. The environment is continuously changing and there is no direct relationship between all the factors that affect fuel consumption. In this paper, we propose a method to evaluate driving that can fit any scenario. It is based on Data Envelopment Analysis (DEA). This technique...

Interest in energy cost saving and in global warming have persuaded transport companies to apply measures to reduce fuel consumption. Efficient driving is one of the most employed solutions as it allows savings in fuel consumption of around 10% with a minimal investment. The drawback is that efficient driving is a learning process, and it greatly d...

Nowadays, professional fleets and non-professional drivers pursue to reduce the consumption of fuel and to reduce their travel times. Nevertheless, this may be challenging in urban areas due to the density of traffic. Dense traffic increases travel times and, as a result, the consumption of fuel and the generation of pollution. Thus, it is very imp...

Over the last decade, transport companies have tried to reduce fuel consumption using efficient driving programs. In them, motorists have to apply different specific techniques while driving. Thus, to succeed in this learning process there are two key elements: the knowledge of efficient driving techniques and the drivers’ motivation. The latter is...

Diesel engines of the vehicles in the transport sector are responsible for most of the CO2 emissions into the environment. An alternative to reduce fuel consumption is to promote efficient driving techniques. The aim of this paper is to assess the impact of efficient driving on fuel consumption in professional fleets. Data captured from the engine...

Ad-hoc networks have long been studied as an ideal technology to provide communications in emergency operations when network infrastructures are not available. Nevertheless, this area has not yet delivered enough mature technologies or working prototypes. We suspect that, among other issues, this is due to a lack of understanding of this applicatio...

En el corto plazo, la industria del robot autónomo y de los drones será un factor de desarrollo importante. Tanto la fabricación de los propios dispositivos, como del desarrollo del software que los hace funcionar serán actividades empresariales de importancia en el sector TIC. No obstante, el futuro de los robots de trabajo autónomo es colaborar u...

El sector del transporte es uno de los principales causantes de la emisión de partículas contaminantes del medioambiente. Entre las diferentes alternativas para la reducción de consumo y de emisión de partículas nocivas la más atractiva para las empresas de transporte profesional es la utilización de técnicas de conducción eficiente ya que permite...

The number of motorcycles on the road has increased in almost all European countries according to Eurostat. Although the total number of motorcycles is lower than the number of cars, the accident rate is much higher. A large number of these accidents are due to human errors. Stress is one of the main reasons behind human errors while driving. In th...

Public transport companies face great expenses. In order to be profitable companies, they need to reduce costs in all aspects. In addition, many countries have increased taxes to force transport companies to reduce their fuel consumption and, thus, greenhouse effect emissions. Efficient driving is the cheapest way to achieve this goal. In this pape...

Efficient driving has been positioned as the most popular alternative to reduce air pollution and obtain fuel savings. However, efficient driving requires a continuous learning process in order to prevent users reverting to their original habits. To facilitate the learning process, on-board tutoring systems have appeared. In this study, the authors...

Public institutions and private companies all around the world agree that road transport is one of the main sectors responsible for global warming. With this in mind, all of them have designed actions to increase efficiency and reduce fuel consumption and emissions. A favorite for the companies is eco-driving because it can improve the fleet perfor...

In the last years the number of devices that provide information about the car the driving process has increased considerably. This also implies an increased level of distraction and, thus, a decrease in safety. In this context, Head-Up Display devices (HUDs) may be considered adequate representation interfaces because they are transparent and they...

Transport companies are probably one of the greatest sources of pollution nowadays. Perhaps because these companies would like to improve this situation, or perhaps because they simply would like to reduce the petrol they consume, they are more than ever deploying plans in order to increase the efficiency of their fleets. One of the easiest and che...

Effectively adapting the content to network conditions in real-time is an important matter in best-effort networks like the Internet. Scalable Video Coding (SVC) is an interesting alternative to implement such systems. However, some problems of the performance evaluation of SVC based adaptive systems have not been solved. The authors review the mai...

The popularity of Interactive Digital Television (IDTV) applications has grown in recent years, playing a significant role in today’s society. This new type of television allows users to access interactive applications in order to look for information, for communication or educational purposes, or just for fun. Most of these applications require te...

Las nuevas tendencias educativas exigen que los alumnos realicen trabajos de forma autónoma. Bajo el paradigma del project oriented learning (POL) se busca dotar a los estudiantes de nuevas habilidades para el desarrollo de sus propios proyectos que los preparen mejor para la vida profesional. Este artículo presenta los primeros pasos de un laborat...

Actualmente, las TIC (Tecnologías de la Información y las Comunicaciones) están irrumpiendo con fuerza dentro del campo de la educación. En este contexto, resulta de interés estudiar la aceptación de las TICs por parte, tanto del alumnado como del profesorado. Este trabajo se cimenta en dos pilares: En primer lugar, la creación de un plan metodológ...

Nowadays, access to multimedia content is one of the most demanded services on the Internet. However, the transmission of audio and video over these networks is not free of problems that negatively affect user experience. Factors such as low image quality, cuts during playback or losses of audio or video, among others, can occur and there is no cle...

Air quality is an important problem because it has a direct impact on human health and global warming. For years, governments have been monitoring air quality using fixed stations. However, these stations only examine pollution at specific locations. Therefore, pollution studies can only be created by extrapolation. This situation may be improved b...

Transport companies are probably one of the greatest sources of pollution nowadays. Maybe because these companies would like to improve this situation, or maybe because they simply would like to reduce the petrol they consume, they are more than ever deploying plans in order to increase the efficiency of their fleets. One of the easiest and cheapes...

La correcta evaluación de trabajadores en su puesto de trabajo es un problema complejo pero fundamental si se pretenden instaurar planes de recompensa. La evaluación ha de ser justa y basada en indicadores claros que no generen resultados ambiguos o poco ajustados a la realidad del rendimiento individual. En el campo de la conducción eficiente, la...

It has been several years now since we started to experience a change in traditional television services. Recently, the digitalization of these services has improved the usage of the available electromagnetic spectrum, increased the quality of the service and increased the number of channels. The next step in this evolution is the transformation of...

Opportunistic networking can help emergency services in both their daily operation and disaster relief. This idea has been extensively explored in previous research, but most studies are based on little knowledge of real mobility. In order to support future research, this paper analyses one year of GPS traces from a fire department. The results rev...

Concerns about global warming and energy costs have induced transport companies to take measures to reduce fuel consumption. Among the different options available, efficient driving is widely used, allowing a reduction in fuel consumption of around 10%. However, changing the driver's behavior is not exempt of problems. The success of efficient driv...

The results from event-driven simulations with video services can present limitations because of the cost of developing accurate models. Creating a video server model precise in how streams are transmitted is generally as expensive as the construction of the real server, thus several simplifications are generally introduced to reduce the effort. In...

Driving efficiently motor vehicles is one of the most economic methods to reduce the consumption of petrol and, thus, the generation of greenhouse effect gasses. Traditionally, transport companies tackled this process with driving courses, but this approach on itself is not very successful on the medium and long terms. We consider that a learning a...

The ISO 50001 is an international standard oriented to the energy management. In the transport sector and in companies where the equipment is mainly combustion engine means, this energy management process is principally oriented to control the vehicle fuel consumption. In this paper, we present a service capable of monitoring how and when the fuel...

Remote controls are especially problematic for writing text, something necessary in many interactive digital TV applications (IDTV). In the context of research aimed at finding effective entry methods for IDTV applications, an empirical investigation was carried out and is presented in this article. The study analyzed the errors committed by 82 use...

Uno de los costes operativos más importantes en una compañía de transporte por carretera es el del combustible. El consumo de carburantes representa un importante porcentaje del gasto y la variación de su precio suele obligar a cambios inmediatos en las tarifas para mantener la rentabilidad. Este artículo presenta un método para la reducción de con...

The emergence of social activities on the Internet in conjunction with the popularization of multimedia services has facilitated the development of collaborative services for Social TV. Interactive services with multimedia contents are critical because of the high consumption of resources in the communication networks. For this reason, interactive...

Scalable streaming has emerged as a feasible solution to resolve users' heterogeneity problems. SVC is the technology that has served as the definitive impulse for the growth of streaming adaptive systems. Systems seek to improve layer switching efficiency from the network point of view but, with increasing importance, without jeopardizing user per...

One of the most important expenses in bus and truck transport companies is the cost of fuel. A small increase in the price of petrol can have a very negative effect on the companies’ balance sheet. Apart from that, road transport companies are targeted due to their influence on air pollution. All of this has made the reduction in fuel consumption t...

HTTP Video streaming has become a strong candidate for video transmission on the Internet thanks to the abundance of web infrastructure. With the recent standardization of the new MPEG Dynamic Adaptive Streaming over HTTP (DASH), the flexibility and implantation of adaptive video systems has increased due to the fact that DASH can operate on a conv...

Nowadays there is a huge market emerging in the interactive digital TV realm. In this context, we need new and effective methods of user interaction, as the main interaction device is still the classical remote control. Remote controls are especially problematic when it comes to writing text, something needed in most applications. Thus, we have car...

UrVAMM is a revolutionary system for environmental-urban monitoring in the next smart cities scenario. UrVAMM is constructing a new technology to be integrated in professional fleets of vehicles such as urban buses, garbage trucks, personal vehicles, etc. Based on the combination of two well-established technologies from Ingenieros Asesores and ADN...

One of the sectors that currently generates pollution is road transport. Every day, millions of tons of CO2 are released into the atmosphere because of this type of human activity. Governments see the reduction of such emissions as a priority-which, according to various studies, could be achieved through more efficient driving. This paper presents...

Content adaptation to a heterogeneous environment like the Internet is a key process for improving the perceived quality of the user. This paper presents an adaptive streaming system using Scalable Video Coding (SVC) technology. Using feedback information from clients about the transmission status, the server is able to select the most suitable com...

Laboratory work is one of the most important activities in technical degrees. In these classes, students learn while carrying out tasks similar to those they could encounter in a professional environment. These activities help to strengthen the theoretical principles while allowing the students to develop useful skills for their careers. In this pa...

The popularity of video services on the Internet, and moreover High Definition (HD) videos, has increased continuously in recent years. This growing demand for high quality video services can cause problems in current communication networks. For this reason, the characterization and modeling of video workloads have become essential factors in evalu...

In the last few years an important increase in private car journeys has created significant congestion in cities and on interurban roads. Furthermore, these shifts have generated significant parking problems. To be able to make predictions and define policies that can improve circulation, governments from time to time perform mobility studies that...

Video streaming is not possible between nodes in different partitions of a Mobile Ad-Hoc Network (MANET). However, ferry nodes can be used to deliver video in this environment. This service is helpful in some application scenarios, like emergencies. An important problem arises when the capacity offered by such a delay-tolerant network is not enough...

Video popularity characterization, in a News-on-demand service, is the core issue of this paper. It will concentrate on the digital edition of six Spanish regional newspapers, where the different news articles are classified into a wide variety of issues. Request video data has been analyzed, including how accesses were distributed along the differ...

Most live audio/video services deliver information which is produced just-in-time; thus, the deployment of these services is very challenging: there is never a second chance to broadcast the contents. Therefore, aspects such as the selection of the most suitable architecture or the impact of the underlying network technology need to be carefully st...

QoE metrics are a must in new service evaluations as they have shown to outperform traditional QoS. This work presents a flexible framework for measuring different types of QoE analysis and capable of synchronizing reference sequence with distorted videos for avoiding erroneous coupling. We define cPSNR metric, a measurement system suitable for per...

Video delivery in a mobile ad-hoc network that can be deployed by members of an emergency service in an incident zone is an appealing tool for emergency and rescue services, but has not been studied yet. In order to design and test a suitable solution, we have generated realistic evaluation scenarios by modeling fireman action plans and GPS traces...

La llegada del EEES ha definido en España unos estudios estructurados en grados de cuatro años y másters de entre uno y dos. Esta definición hace que las antiguas diplomaturas e ingenierías técnicas queden por debajo del umbral de los nuevos grados, lo que ha llevado a las universidades a implementar cursos de adaptación que permitan a titulados me...

Every day, more services in the Internet (Youtube, Facebook, etc.) are being massively used, while network operators struggle to maintain their performance. Since simulations are not always accurate and evaluation prior to deployment is a must, it is often convenient to build an emulation testbed to test these services in more realistic environment...

This paper presents a non-intrusive estimator for Internet TV services based on streaming technology. Analyzing the video packets received by the client application, the estimator is capable of selecting the most suitable encoding bitrate for the available bandwidth in the end-to-end path. The estimator has been integrated in a real client/server a...

The development of the technologies behind Interactive Digital Television (IDTV) services has produced a new type of audience. Traditional viewers now become users as they may play an active role in front of the TV, for example, by choosing a video to be played on demand or by introducing text on an IDTV application. In these services, interactions...

Internet radios have become one of the most popular services on the Internet nowadays. This popularity has motivated the interest of the scientific community and a lot of research has been carried out in order to improve and study these services. The goal of this paper is to develop a model of an Internet radio service in order to help service mana...

The popularity of multimedia videos related to a wide range of news, which were emitted in three different Spanish local on-line newspapers, has been researched in this paper. The statistic distribution from which the popularity came from is unknown. In fact, throughout the literature, many papers have modeled popularity with different distribution...

Mobile ad-hoc network research tackles many different environments. In all of them, node mobility is a determining factor, because credibility of the experiments in this subject is strongly related to the realism of the scenario. For that reason, a lot of effort has gone into designing realistic mobility models and gathering real world mobility tra...

This special number of the IEEE Latin America Transactions includes a selection of the best papers presented at the three events CITA 2009, JISBD 2009 and TELECOM I+D 2009, which take place at Spain in 2009.

On IEEE 802.11 wireless LANs (WLAN) the clients have control over the handoff procedure; a client decides the best AP (access point) to be associated to and when and where to change its association to a new AP. This simple handoff management technique can have negative effects for both static and mobile clients of the same cell, since some wireless...

Internet radios have become one of the most popular services on the Internet. This popularity has motivated the interest of the scientific community and much research has been conducted to improve and study these services. In this context, this paper presents an evaluation of different architectures that can be used to deploy an Internet radio serv...

This number of the IEEE is a selection of the papers presented in CITA 2009 (Congreso Iberoamericano de Telematica). This event took place in Gijon/Xixon (Asturies, Spain) the 11th and the 12(th) of May 2009. The papers included in this number show the current research in Latin America, Spain and Portugal in the area of Telematics.

Research on large-scale internet services requires an extensive evaluation prior to deployment. A good analysis must include tests over large networks, using real devices and a considerable number of users. However, how to test in these scenarios with many users is an open question. Network emulation can be a good alternative before real deployment...

In this paper, we describe a simple tool for the design of communication networks. On the one hand, it provides an interface for students, where they can add, remove or configure components. Been a web application, pupils can work everywhere, which promotes an informal learning environment. On the other hand, professors can visualize student's proj...

This paper presents the process used for the adaptation of an e-learning application to a t-learning application from the point of view of graphic interfaces, including usability aspects and technical restrictions of interactive digital television. The process was evaluated through a study case in which an application of e-learning was adapted to a...

This paper presents the process used for the adaptation of an e-learning application to a t-learning application from the point of view of graphic interfaces, including usability aspeets and technical restrictions of interactive digital televisión. The process was evaluated through a study case in which an application of e-learning was adapted to a...

This article introduces a distributed system, called wireless proxy, to mitigate the effects of user mobility over streaming services on IEEE 802.11 wireless LANs (WLANs). It argues that a handoff procedure totally controlled by the client, depending on client mobility and configuration, can have negative effects over streaming services. In this wa...

Accurate workload prediction in multimedia systems requires a description of both its probabilistic properties and the interdependence between the variables of the system. This paper analyzes the interactions of the users of a news and entertainment video-on-demand service (LNE TV, http://tv.lne.es) during six months of activity. The analysis was p...

This editorial is an introduction of the special issue composed with the best papers in e-learning of CITA2009 (Congreso Iberoamericano de Telemática). This congress was organized in Gijón/Xixón, Asturies, España, in May of 2009. The two selected papers are related with different matters of elearning, such as learning objects and system architectur...

Using Mobile Ad-hoc Networks (MANETs) for audio and video transmission is very promising for application domains such as emergency and rescue. However, audio/video streaming services are not designed for such dynamic and unstable networks. The problems are even more important in so-called sparse MANETs where the node density is relatively low so th...

In this letter we present an analysis of workload in a real video on demand service with the objective of generating more accurate input data for simulation models. As well as statistically characterizing key aspects in the server workload of the multimedia system, we consider their statistical dependencies.We propose a procedure to generate multiv...

One of the main subjects in computer science and telecommunication degrees is the study of application protocols. The increase in the number and use of Internet services has raised their importance, since new applications which implement them are developed everyday. However, their study is not easy since they are hidden behind the services. In this...

Resumen: Uno de los elementos de aprendizaje más importantes en las carreras técnicas es el trabajo de laboratorio. En él, los estudiantes aprenden a desarrollar tareas similares a las que les esperan en el mundo profesional. Estas actividades ayudan a fijar los conocimientos teóricos y conseguir ciertas habilidades transversales muy importantes en...

Due to the elevated consumption of resources, the high cost of the production of contents and the quality of service required in audio/video streaming services, it is extremely important to optimize all the elements involved in the deployment of these services. With this goal in mind, provider companies have developed their management and presentat...

The inclusion of multimedia contents in educational services has helped to increase the quality of learning processes. This paper presents an innovative educational system where these contents are used in novel ways and not only as mere complements of traditional materials. The idea is to create an online adaptive tutor which uses video as the main...

This chapter presents a method for performance analysis and configuration of audio/video-on-demand services. These kind of services makes use of an important number of resources, requires a constant quality of service and contents, and usually have important production costs. To maintain a good quality of service and at the same time, to make a pro...

This article presents a methodology for performance analysis and configuration of audio/video- on-demand services. To maintain a good quality of service and to make a profit for the content provider, services must have the optimum configuration. With this aim, the configuration process must be based on an accurate service behavioural analysis which...

The video on demand service characterized in this article has surpassed 4 years of service, and the access log database stores information of more than 160,000 reproductions and 900 videos. The wide variety of subjects, the range of content lengths and a frequent update of contents (several new videos every day), clearly differentiate this study fr...

This article introduces a distributed system, called wireless proxy, to mitigate the effects of user mobility over streaming services on IEEE 802.11 wireless LANs (WLANs). It argues that a handoff procedure totally controlled by the client, depending on client mobility and configuration, can have negative effects over streaming services. In this wa...