Exploració per autor "Ochoa, Sergio"

Ara es mostren els items 11-30 de 38

    • Communication and coordination patterns to support mobile collaboration 

      Meseguer Pallarès, Roc; Ochoa, Sergio; Pino, José; Navarro Moldes, Leandro; Neyem, Andres (2008-06-10)
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      Wireless communication and mobile computing technologies have brought new opportunities and challenges to the CSCW area. Traditional CSCW solutions concerning communication and coordination support are not applicable ...

    • Community sharing of spare network capacity 

      Dimogerontakis, Emmanouil; Meseguer Pallarès, Roc; Navarro Moldes, Leandro; Ochoa, Sergio; Veiga, Luis (IEEE Press, 2017)
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      In several community scenarios, people share benevolently their spare broadband Internet access connectivity with other people who cannot afford it. Although laudable, this sharing process can negatively affect the service ...

    • CoSP: a collaborative sensing platform for mobile applications 

      Medina Medina, Esunly; López Nuevo, David Andrés; Royo Vallés, María Dolores; Meseguer Pallarès, Roc; Ochoa, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      Smartphones are powerful sensing devices that can help us capture not only information from the environment, but also the users' activities. Based on that information, mobile systems can identify the user's behavioural ...

    • Design trade-offs of crowdsourced web access in community networks 

      Dimogerontakis, Emmanouil; Meseguer Pallarès, Roc; Navarro Moldes, Leandro; Ochoa, Sergio; Veiga, Luis (2017)
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      Internet access has become a requirement to participate in society; however, the majority of the world’s population is not yet online. Citizens can self-organize cooperatively to crowdsource community network infrastructures ...

    • Effort-based incentives for resource sharing in collaborative volunteer applications 

      Vega d'Aurelio, Davide; Meseguer Pallarès, Roc; Freitag, Fèlix; Ochoa, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      Collaborative and volunteer applications need to implement incentive mechanisms to regulate resource sharing and encourage network nodes to contribute for reaching a certain goal. Typically, these incentive mechanisms ...

    • Energy-aware topology control strategy for human-centric wireless sensor networks 

      Meseguer Pallarès, Roc; Molina, Carlos; Ochoa, Sergio; Santos, Rodrigo (2014-02-07)
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      The adoption of mobile and ubiquitous solutions that involve participatory or opportunistic sensing increases every day. This situation has highlighted the relevance of optimizing the energy consumption of these solutions, ...

    • Flying real-time network for disaster assistance 

      Santos, Rodrigo; Orozco, Javier; Mossé, Daniel; Petrucci, Vinicius; Ochoa, Sergio; Meseguer Pallarès, Roc (2017)
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      Landslides and large floods are serious natural disasters that every year cause multiple deaths and loss in property around the world. When these events occur in areas like the “favelas” or mountain regions in coastal ...

    • Flying real-time network to coordinate disaster relief activities in urban areas 

      Micheletto, Matías; Petrucci, Vinicius; Santos, Rodrigo; Orozco, Javier; Mossé, Daniel; Ochoa, Sergio; Meseguer Pallarès, Roc (Multidisciplinary Digital Publishing Institute (MDPI), 2018-05-22)
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      While there have been important advances within wireless communication technology, the provision of communication support during disaster relief activities remains an open issue. The literature in disaster research reports ...

    • Geo-localized messages irradiation using smartphones: An energy consumption analysis 

      Moreno, Daniel; Ochoa, Sergio; Santos, Rodrigo; Meseguer Pallarès, Roc (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      The widespread availability of smartphones with wireless communication and geo-positioning capabilities has open new opportunities to services for casual passersby, e.g. the delivery of advertising when they visit a certain ...

    • HLMP API: A software library to support the development of mobile collaborative applications 

      Rodríguez-Covili, Juan Francisco; Ochoa, Sergio; Pino, José; Meseguer Pallarès, Roc; Medina Medina, Esunly; Royo Vallés, María Dolores (2010-05-24)
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      Mobile collaborative applications are usually deployed in work scenarios where the existence of fixed communication infrastructure is hard to predict. For that reason, these applications use Mobile Ad hoc Networks (MANETs) ...

    • LoRaMoto: a communication system to provide safety awareness among civilians after an earthquake 

      Pueyo Centelles, Roger; Meseguer Pallarès, Roc; Freitag, Fèlix; Navarro Moldes, Leandro; Ochoa, Sergio; Santos, Rodrigo (Elsevier, 2021-02)
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      Civilians in areas hit by earthquakes become in particular concerned about the safety of family and friends. However, outages in communications networks following these events limit their capacity to get information. So, ...

    • Mobile Autonomous Sensing Unit (MASU): a framework that supports distributed pervasive data sensing 

      Medina Medina, Esunly; López Nuevo, David Andrés; Meseguer Pallarès, Roc; Ochoa, Sergio; Royo Vallés, María Dolores; Santos, Rodrigo (2016-07)
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      Pervasive data sensing is a major issue that transverses various research areas and application domains. It allows identifying people’s behaviour and patterns without overwhelming the monitored persons. Although there are ...

    • Modeling IoT-Based solutions using human-centric wireless sensor networks 

      Monares, Alvaro; Ochoa, Sergio; Santos, Rodrigo; Orozco, Javier; Meseguer Pallarès, Roc (2014-08-25)
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      The Internet of Things (IoT) has inspired solutions that are already available for addressing problems in various application scenarios, such as healthcare, security, emergency support and tourism. However, there is no ...

    • Motivating the non-technical participation in technical communities 

      Vega d'Aurelio, Davide; Meseguer Pallarès, Roc; Freitag, Fèlix; Ochoa, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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      Email Print Request Permissions Technical communities are social structures that emerge around the interest of individuals to build and deploy their own technology or communication infrastructure, such as wireless ...

    • Predicting topology propagation messages in mobile ad hoc networks: The value of history 

      Millán Marco, Pere; Aliagas Castell, Carles; Molina Clemente, Carlos Maria; Meseguer Pallarès, Roc; Ochoa, Sergio; Santos, Rodrigo (Multidisciplinary Digital Publishing Institute (MDPI), 2020-01-01)
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      The mobile ad hoc communication in highly dynamic scenarios, like urban evacuations or search-and-rescue processes, plays a key role in coordinating the activities performed by the participants. Particularly, counting on ...

    • Providing behaviour awareness in collaborative project courses 

      Medina Medina, Esunly; Meseguer Pallarès, Roc; Ochoa, Sergio; Medina, Humberto (2016-10-01)
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      Several studies show that awareness mechanisms can contribute to enhance the collaboration process among students and the learning experiences during collaborative project courses. However, it is not clear what awareness ...

    • Providing real-time message delivery on opportunistic networks 

      Santos, Rodrigo; Orozco, Javier; Ochoa, Sergio; Meseguer Pallarès, Roc; Mossé, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2018-06-26)
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      IoT systems monitoring or controlling the behavior of smart environments frequently require to count on real-time message delivery, in order to support decision making and eventually coordinate the individual behavior of ...

    • Providing ubiquitous positioning in outdoor environments 

      Moreno, Daniel; Ochoa, Sergio; Meseguer Pallarès, Roc (2015)
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      Knowing the position of a device at a given time is fundamental to provide services tailored to the current user location. However, not all devices are able to perform positioning by their own, even when positioning systems ...

    • Real-time communication support for underwater acoustic sensor networks 

      Santos, Rodrigo; Orozco, Javier; Micheletto, Matías; Ochoa, Sergio; Meseguer Pallarès, Roc; Millán, Pere; Molina Clemente, Carlos Maria (MDPI AG, 2017-07-14)
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      Underwater sensor networks represent an important and promising field of research due to the large diversity of underwater ubiquitous applications that can be supported by these networks, e.g., systems that deliver tsunami ...

    • Reducing energy consumption in human-centric wireless sensor networks 

      Meseguer Pallarès, Roc; Molina Clemente, Carlos; Ochoa, Sergio; Santos, Rodrigo (2012)
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      Energy consumption is a main research issue in wireless sensor networks; and particularly in those where nodes collaborate to reach a goal. This article explores the energy consumption in mobile devices participating ...