Valentín Barral

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The growth of wireless and mobile communications technologies offers new possibilities for context driven information systems. Specifically, nowadays, mobile phones are equipped with several radio-frequency technologies, like Global System for Mobile Communications (GSM),WiFi or Bluetooth. In this way, the idea of using them to create a location system(More)
The rising popularity of location-based services has prompted considerable research in the field of indoor location systems. Since there is no single technology to support these systems, it is necessary to consider the fusion of the information coming from heterogeneous sensors. This paper presents a software architecture designed for a hybrid location(More)
Radio Frequency Identification (RFID) is an attractive technology for implementing applications such as localization, detection, security, etc. When deploying these systems indoors, several doubts come out about how many readers and antennas are needed in order to minimize costs, but also to avoid tag-to-reader and reader-to-reader interferences. We present(More)
In this paper we propose a software architecture specifically designed for enabling software-defined radio using several hardware nodes (transmitters and/or receivers) at the same time and designed under the premises of being scalable as well as distributed. Additionally, the software architecture supports remote interaction with the hardware nodes, thus(More)
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