Browsing by Subject "Xarxes de sensors"
Now showing items 1-20 of 291
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A cluster head decision system for sensor networks using fuzzy logic and number of neighbor nodes
(Institute of Electrical and Electronics Engineers (IEEE), 2009)
Conference report
Open AccessCluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network’s communication energy dissipation. However, the selection of cluster head is not ... -
A cluster head selection method for wireless sensor networks based on fuzzy logic
(Institute of Electrical and Electronics Engineers (IEEE), 2007)
Conference report
Open AccessSensor networks supported by recent technological advances in low power wireless communications along with silicon integration of various functionalities are emerging as a critically important computer class that enable ... -
A context-aware service architecture for the integration of body sensor networks and social networks through IP multimedia subsystem
(2011-01-01)
Article
Restricted access - publisher's policyIn this article a new context-aware architecture is proposed for the integration of body sensor networks and social networks through the IP Multimedia Subsystem. Its motivating application scenarios are described. The ... -
A data-driven framework for air quality sensor networks
(Institute of Electrical and Electronics Engineers (IEEE), 2024-01-11)
Article
Open AccessIn this article, we present our research vision of a framework for obtaining quality data in air quality monitoring networks using low-cost sensors (LCSs). The use of LCS networks is gaining increasing acceptance in many ... -
A diffusion-based distributed EM algorithm for density estimation in wireless sensor networks
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Conference report
Restricted access - publisher's policyWe address the problem of distributed estimation of a parameter from a set of noisy observations collected by a sensor network, assuming that some sensors may be subject to data failures and report only noise. In such ... -
A diffusion-based em algorithm for distributed estimation in unreliable sensor networks
(2013-01)
Article
Restricted access - publisher's policyWe address the problem of distributed estimation of a parameter from a set of noisy observations collected by a sensor network, assuming that some sensors may be subject to data failures and report only noise. In such ... -
A distributed energy-aware routing protocol for underwater wireless sensor networks
(2011-04-01)
Article
Restricted access - publisher's policyThe design of routing protocols for Underwater Wireless Sensor Networks (UWSNs) poses many challenges due to the intrinsic properties of underwater environments. In this paper we present DUCS (Distributed Underwater ... -
A hybrid cooperative design for energy-efficient surveillance in wireless multimedia sensor networks
(VDE Conference Publications, 2012)
Conference report
Restricted access - publisher's policyIn Wireless Multimedia Sensor Networks (WMSNs) the lifetime of battery-operated visual nodes is limited by their energy consumption, which is proportional to the energy required for sensing, processing, and transmitting ... -
A method for clustering and cooperation in wireless multimedia sensor networks
(2010-04)
Article
Open AccessWireless multimedia sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbouring sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical ... -
A mixed-signal control system for Lorentz-force resonant MEMS magnetometers
(2019-09-01)
Article
Open AccessThis paper presents a mixed-signal closed-loop control system for Lorentz force resonant MEMS magnetometers. The control system contributes to 1) the automatic phase control of the loop, that allows start-up and keeps ... -
A new MPPT method for low-power solar energy harvesting
(2010-09)
Article
Open AccessThis paper describes a new maximum-power-pointtracking (MPPT) method focused on low-power (< 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. ... -
A proxy design to leverage the interconnection of CoAP wireless sensor networks with web applications
(2015-01-09)
Article
Open AccessIn this paper, we present the design of a Constrained Application Protocol (CoAP) proxy able to interconnect Web applications based on Hypertext Transfer Protocol (HTTP) and WebSocket with CoAP based Wireless Sensor Networks. ... -
A sensor data-based approach for the definition of condition taxonomies for a hydraulic pump †
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-11)
Article
Open AccessCondition monitoring (CM) is an important application in industry for detecting machine failures in an incipient stage. Based on sensor data, computational intelligence methods provide efficient solutions for the analysis ... -
A sensor web architecture for integrating smart oceanographic sensors into the semantic sensor web
(2018-10)
Article
Open AccessEffective ocean and coastal data management are needed to manage marine ecosystem health. Past ocean and coastal data management systems were often very specific to a particular application and region, but this focused ... -
A Sensor web architecture for sharing oceanographic sensor data
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Restricted access - publisher's policyThis paper introduces the Sensor Web architecture of the NeXOS project as example how interoperable standards help, to facilitate the creation of an infrastructure for sharing oceanographic observation data and the ... -
A simple and efficient MPPT method for low-power PV cells
(2014-01-01)
Article
Open AccessSmall-size PV cells have been used to power sensor nodes. These devices present limited computing resources and so low complexity methods have been used in order to extract the maximum power from the PV cells. Among them, ... -
A simulation system for routing efficiency in wireless sensor-actor networks: a case study for semi-automated architecture
(Institute of Electrical and Electronics Engineers (IEEE), 2008)
Conference report
Open AccessWireless networks have become increasingly popular and advances in wireless communications and electronics have enabled the development of different kind of networks such as Mobile Ad-hoc Networks (MANETs), Wireless Sensor ... -
A simulation system for WSNs as a digital eco-system approach considering goodput metric
(Institute of Electrical and Electronics Engineers (IEEE), 2010)
Conference report
Open AccessSensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves ... -
A survey on M2M systems for mHealth: a wireless communications perspective
(2014-10-01)
Article
Open AccessIn the new era of connectivity, marked by the explosive number of wireless electronic devices and the need for smart and pervasive applications, Machine-to-Machine (M2M) communications are an emerging technology that enables ... -
A tool for rapid MAC protocols prototyping and designing for wireless sensor networks
(Universitat Politècnica de Catalunya, 2012-09-25)
Master thesis
Open AccessWireless Sensor Networks (WSNs)consists of several resource constrained sensor nodes distributed over an specific geographical area. WSNs are typically energy constraint due to the fact the sensor nodes are battery ...
