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  • R3TOS-based autonomous fault-tolerant systems
    Pages 20 30 X Iturbe K Benkrid C Hong A Ebrahim R Torrego I Martínez T Arslan and J Pérez An autonomous fault tolerant system AFTS is one that can reconfigure its own resources in the presence of permanent defects and spontaneous random faults occurring in its silicon substrate in order to maintain the original functionality This capability makes an AFTS especially suitable for use in harsh environments where traditional electronics technology is susceptible to failure This article describes the contributions of the Reliable Reconfigurable Real Time Operating System R3TOS for building an AFTS using currently available Xilinx partially reconfigurable field programmable gate arrays Namely this article discusses what R3TOS offers for developing durable dependable and real time embedded systems to be used in rugged environments In this context the article presents an R3TOS based inverter controller of a real world railway traction system that is proven to recover from most of the errors injected without requiring any human intervention IK4 Ikerlan Organización y equipo Resultados Infraestructuras y equipamiento Desarrollo profesional IK4 Research Alliance Mondragón Corporación I D para empresas Desarrollo de productos y servicios Eficiencia energética y almacenamiento de energía Eficiencia operativa y fabricación avanzada IK4 IKERLAN Inspira En

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/r3tosbased-autonomous-faulttolerant-systems (2016-02-15)
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  • A framework for context-aware elderly entertainment support system
    and mentally vulnerable and need continuous support for their health and well being There is a growing trend that these elderly people are placed in an ambient assisted living environment AAL with an aim to receive better care and support In such settings a lot of attention has been given to continuous health monitoring for maintaining physical health status However much less attention has been given toward understanding the entertainment needs of the elderly people which is an important factor relevant to their mental health and joyful living This paper thus addresses the entertainment needs of the elderly and proposes a framework of an elderly entertainment support system The proposed framework enables different categories of residents e g elderly people and caregivers to access various media services in both implicit and explicit manner in order to enhance the quality of their living experience in different contexts Our experimental results demonstrate the viability of the proposed framework We believe that the proposed approach will establish the need to develop entertainment systems and services for the elderly people and allow us to sensibly address the problems associated with their independent happy and active living IK4 Ikerlan Organización y equipo Resultados Infraestructuras y

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/a-framework-for-contextaware-elderly-entertainment-support-system (2016-02-15)
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  • RESTful Discovery and eventing for service provisioning in assisted living environment
    sensing actuation devices in such an environment Existing solutions such as SOAP based web services can interconnect heterogeneous devices and services and can be published discovered and invoked dynamically However it is considered heavier than what is required in the smart environment like context and hence suffers from performance degradation Alternatively REpresentational State Transfer REST has gained much attention from the community and is considered as a lighter and cleaner technology compared to the SOAP based web services Since it is simple to publish and use a RESTful web service more and more service providers are moving toward REST based solutions which promote a resource centric conceptualization as opposed to a service centric conceptualization Despite such benefits of REST the dynamic discovery and eventing of RESTful services are yet considered a major hurdle to utilization of the full potential of REST based approaches In this paper we address this issue by providing a RESTful discovery and eventing specification and demonstrate it in an assisted living healthcare scenario We envisage that through this approach the service provisioning in ambient assisted living or other smart environment settings will be more efficient timely and less resource intensive IK4 Ikerlan Organización y equipo Resultados

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/restful-discovery-and-eventing-for-service-provisioning-in-assisted-living-environment (2016-02-15)
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  • Reliable Communications with Network Coding in Narrowband Powerline Channel
    Communications and its Applications ISPLC 2014 18th IEEE International Symposium Glasgow March 30 2014 April 2 2014 Pages 316 321 Josu Bilbao Igor Armendariz Pedro Crespo Muriel Medar Due to its wide availability narrowband powerline networks provide an interesting no new wires communication channel Nevertheless as powerline was not designed for data communication its electrical characteristics make it a harsh environment for data transmission and prevents the deployment of services with high reliability requirements This paper presents 3 main outcomes i The characterization of the transmission error correlation among different nodes in a narrowband powerline network which acts in favour of the cooperative schemes ii Based on the conclusions obtained from real measurements campaign we propose a new OSI Layer2 scheme based on Network Coding to achieve reliable communications in narrowband powerline iii We demonstrate the benefits of the proposed scheme validating its real implementation in an embedded system and comparing the achieved performance improvement with different legacy ARQ schemes IK4 Ikerlan Organización y equipo Resultados Infraestructuras y equipamiento Desarrollo profesional IK4 Research Alliance Mondragón Corporación I D para empresas Desarrollo de productos y servicios Eficiencia energética y almacenamiento de energía Eficiencia operativa y fabricación avanzada IK4 IKERLAN Inspira En

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/reliable-communications-with-network-coding-in-narrowband-powerline-channel (2016-02-15)
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  • Broadband UHF implanted 3-D conformal antenna design and characterization for in-off body wireless links
    implemented and properly characterized According to the requirements the CVC antenna CVCA is low profile surface integrated and 3 D conformal to a 16 mm base radius 10 mm upper radius and 16 mm high truncated cone It operates at the MedRadio band 401 406 MHz for implant communication and at the ISM 2 45 GHz band for electronics wake up A prototype implementation including a test bed within a phantom that is representative of a body is introduced The antenna exhibits S 11 10 dB at the bands of interest with broadband behavior The measured gain is 28 95 dBi in vertical and 36 9 dBi in horizontal polarization in the MedRadio band and 25 5 dBi and 19 9 dBi at 2 45 GHz The gain is corroborated by the link characterization between an implanted node with electronics and an external base station Base station antenna electronics sensitivity transmitted power and path loss are independently measured and introduced in a broken down link budget for read range estimate This is 18 95 m for the MedRadio band in free space conditions By using the power saving mode at 2 45 GHz it is reduced to an estimate of

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/broadband-uhf-implanted-3d-conformal-antenna-design-and-characterization-for-inoff-body-wireless-links (2016-02-15)
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  • Fully reconfigurable FPGA-based cognitive radio platform for reliable communications
    for reliable communications In Communications Technologies and Software Defined Radio SDR WInnComm Wirelless Innovation Forum European Conference on 2013 Munich Germany Casado F et al IK4 Ikerlan Organización y equipo Resultados Infraestructuras y equipamiento Desarrollo profesional IK4 Research Alliance Mondragón Corporación I D para empresas Desarrollo de productos y servicios Eficiencia energética y almacenamiento de energía Eficiencia operativa y fabricación avanzada IK4 IKERLAN Inspira En qué investigamos Sistemas embebidos Sistemas

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/fully-reconfigurable-fpgabased-cognitive-radio-platform-for-reliable-communications (2016-02-15)
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  • Fast characterization method and error sequence analysis for narrowband indoor powerline channel
    indoor powerline channel In Power Line Communications and Its Applications ISPLC IEEE International Symposioum on 2013 Johannesburg p 309 314 Bilbao J A Calvo and I Armendariz IK4 Ikerlan Organización y equipo Resultados Infraestructuras y equipamiento Desarrollo profesional IK4 Research Alliance Mondragón Corporación I D para empresas Desarrollo de productos y servicios Eficiencia energética y almacenamiento de energía Eficiencia operativa y fabricación avanzada IK4 IKERLAN Inspira En qué investigamos Sistemas

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/fast-characterization-method-and-error-sequence-analysis-for-narrowband-indoor-powerline-channel (2016-02-15)
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  • Reliable and high QoS wireless communications over harsh environments
    QoS wireless communications over harsh environments Telecommunications and Information Technology Journal of 2013 2013 1 p 32 40 Bilbao J et al IK4 Ikerlan Organización y equipo Resultados Infraestructuras y equipamiento Desarrollo profesional IK4 Research Alliance Mondragón Corporación I D para empresas Desarrollo de productos y servicios Eficiencia energética y almacenamiento de energía Eficiencia operativa y fabricación avanzada IK4 IKERLAN Inspira En qué investigamos Sistemas embebidos Sistemas eléctricos y electrónicos

    Original URL path: http://www.ikerlan.es/es/actualidad/papers-tesis/reliable-and-high-qos-wireless-communications-over-harsh-environments (2016-02-15)
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