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Elements of scalable data processing
Andersson, Björn; Sousa, Paulo Gandra de; Pacheco, Filipe; Andreou, Panayiotis; Marrón, Pedro; Iqbal, UmerCooperating objects (COs) is a recently coined term used to signify the convergence of classical embedded computer systems, wireless sensor networks and robotics and control. We present essential elements of a reference architecture for scalable data processing for the CO paradigm.
Quality-of-service in wireless sensor networks: state-of-the-art and future dir...
Alves, Mário; Baccour, Nouha; Koubâa, Anis; Severino, Ricardo; Dini, Gianluca; Pereira, Nuno; Sá, Rui; Savino, Ida; Sousa, Paulo Gandra deWireless sensor networks (WSNs) are one of today’s most prominent instantiations of the ubiquituous computing paradigm. In order to achieve high levels of integration, WSNs need to be conceived considering requirements beyond the mere system’s functionality. While Quality-of-Service (QoS) is traditionally associated with bit/data rate, network throughput, message delay and bit/packet error rate, we believe that...
Operational modal monitoring of ancient structures using wireless technology
Aguilar, Rafael; Ramos, Luis; Lourenço, Paulo; Severino, Ricardo; Gomes, Ricardo; Sousa, Paulo Gandra de; Alves, Mário; Tovar, EduardoOperational Modal Analysis is currently applied in structural dynamic monitoring studies using conventional wired based sensors and data acquisition platforms. This approach, however, becomes inadequate in cases where the tests are performed in ancient structures with esthetic concerns or in others, where the use of wires greatly impacts the monitoring system cost and creates difficulties in the maintenance and...
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