Publications

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2013
Marinho, MAM, d. Freitas EP, d. Costa JPCL, d. Almeida ALF, d. J SRT.  2013.  Using MIMO Techniques to Enhance Communication Among Static and Mobile Nodes in Wireless Sensor Networks, March. 2013 IEEE 27th International Conference on Advanced Information Networking and Applications (AINA). :500-505. Abstract

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2014
Wehrmeister, MA, Pignaton de Freitas E, Binotto APD, Pereira CE.  2014.  Combining aspects and object-orientation in model-driven engineering for distributed industrial mechatronics systems. Mechatronics. 24:844-865., Number 7 AbstractWebsite

1. Model-Based Mechatronic System Design 2. Model Based Engineering

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Lampoltshammer, TJ, Pignaton de Freitas E, Nowotny T, Plank S, da Costa JPCL, Larsson T, Heistracher T.  2014.  Use of Local Intelligence to Reduce Energy Consumption of Wireless Sensor Nodes in Elderly Health Monitoring Systems. Sensors. 14:4932–4947., Number 3 AbstractWebsite

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The percentage of elderly people in European countries is increasing. Such conjuncture affects socio-economic structures and creates demands for resourceful solutions, such as Ambient Assisted Living (AAL), which is a possible methodology to foster health care for elderly people. In this context, sensor-based devices play a leading role in surveying, e.g., health conditions of elderly people, to alert care personnel in case of an incident. However, the adoption of such devices strongly depends on the comfort of wearing the devices. In most cases, the bottleneck is the battery lifetime, which impacts the effectiveness of the system. In this paper we propose an approach to reduce the energy consumption of sensors’ by use of local sensors’ intelligence. By increasing the intelligence of the sensor node, a substantial decrease in the necessary communication payload can be achieved. The results show a significant potential to preserve energy and decrease the actual size of the sensor device units.

Miranda, RK, d. Costa JPCL, Marinho MAM, d. Freitas EP, d. Ramos RF, Liu K, Cheung H, Baltar L, de J SRT.  2014.  Evaluation of Space-Time-Frequency (STF)-Coded MIMO-OFDM Systems in Realistic Channel Models, May. 2014 28th International Conference on Advanced Information Networking and Applications Workshops. :310-315. Abstract

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Marinho, MAM, d. Freitas EP, d. Costa JPCL, d. Sousa RT.  2014.  Sensor Localization via Diversely Polarized Antennas, May. 2014 IEEE International Conference on Distributed Computing in Sensor Systems. :333-337. Abstract

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Orfanus, D, de Freitas EP.  2014.  Comparison of UAV-based reconnaissance systems performance using realistic mobility models, Oct. 2014 6th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT). :248-253. Abstract

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Milanezi, J, da Costa JPCL, de Freitas EP.  2014.  Improved radiofrequency energy harvesting based on a rectenna array system and its feasibility evaluation in urban environments, Oct. 2014 International Conference on Renewable Energy Research and Application (ICRERA). :561-565. Abstract

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Orfanus, D, Eliassen F, de Freitas EP.  2014.  Self-organizing relay network supporting remotely deployed sensor nodes in military operations, Oct. 2014 6th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT). :326-333. Abstract

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2015
dos Anjos, JCS, Assun MD, Bez J, Geyer C, de Freitas EP, Carissimi A, Costa JPCL, Fedak G, Freitag F, Markl V, Fergus P, Pereira R.  2015.  SMART: An Application Framework for Real Time Big Data Analysis on Heterogeneous Cloud Environments, Oct. 2015 IEEE International Conference on Computer and Information Technology; Ubiquitous Computing and Communications; Dependable, Autonomic and Secure Computing; Pervasive Intelligence and Computing. :199-206. Abstract

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2016
Orfanus, D, de Freitas EP, Eliassen F.  2016.  Self-Organization as a Supporting Paradigm for Military UAV Relay Networks, April. IEEE Communications Letters. 20:804-807., Number 4 Abstract

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Marinho, MAM, da Costa JPCL, Antreich F, de Almeida ALF, Galdo DG, de Freitas EP, Vinel A.  2016.  Array interpolation based on multivariate adaptive regression splines, July. 2016 IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM). :1-5. Abstract

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Heimfarth, T, Giacomin JC, d. Araujo JP, d. Freitas EP.  2016.  A Preamble Ahead Anycast Protocol for WSNs, March. 2016 IEEE 30th International Conference on Advanced Information Networking and Applications (AINA). :458-466. Abstract

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Bruscato, LT, de Freitas EP, Heimfarth T, de Araujo JP.  2016.  Self-correcting time synchronization in wireless sensor networks using low-power devices, Oct. IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society. :4820-4825. Abstract

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Marinho, MAM, da Costa JPCL, Antreich F, de Freitas PE, Vinel A.  2016.  Adaptive communication and cooperative MIMO cluster formation for improved lifetime in wireless sensor networks, Sept. 2016 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE). :190-195. Abstract

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2017
dos Anjos, JCS, Galibus T, Geyer CFR, Fedak G, Costa JPCL, Pereira R, Pignaton de Freitas E.  2017.  Fast-Sec: an approach to secure Big Data processing in the cloud. International Journal of Parallel, Emergent and Distributed Systems. :1-16.: Taylor & Francis AbstractWebsite

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Pereira, DA, de Morais WO, Pignaton de Freitas E.  2017.  NoSQL real-time database performance comparison. International Journal of Parallel, Emergent and Distributed Systems. :1-13.: Taylor & Francis AbstractWebsite

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Brondani, JR, de Freitas EP, Silva LAL.  2017.  A task-oriented and parameterized (semi) autonomous navigation framework for the development of simulation systems. Procedia Computer Science. 112:534-543., Number Supplement C AbstractWebsite

Knowledge-Based and Intelligent Information & Engineering Systems: Proceedings of the 21st International Conference, KES-20176-8 September 2017, Marseille, France

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Marinho, MAM, Vinel A, Antreich F, d. Costa JPCL, d. Freitas EP.  2017.  Antenna Array Based Localization Scheme for Vehicular Networks, Aug. 2017 IEEE International Conference on Computer and Information Technology (CIT). :142-146. Abstract

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Galibus, T, de B. Vieira TP, de Freitas EP, de O. Albuquerque R, ao C. L da Costa JP, T. de Sousa Júnior R, Krasnoproshin V, Zaleski A, Vissia HERM, del Galdo G.  2017.  Offline Mode for Corporate Mobile Client Security Architecture, Aug. Mobile Networks and Applications. 22:743–759., Number 4 AbstractWebsite

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Preventing data leakage on the mobile client is a crucial security problem. Therefore, additional control and protection should be taken for the confidential data on the mobile clients that leave the boundaries of the organization. This paper presents a novel approach to the security of the corporate mobile clients, in particular when they operate in the offline mode. The presented approach includes the essential conceptualization and the definition of the core methodology to solve the problem of offline mobile security, i.e. the protection of the confidential data in use when the mobile client is not connected to the corporate cloud. The protection of the sensitive data is provided by the combination of cryptographic means and analytics methods to detect malicious user behavior. The proposed security architecture supports the basic mobile client protection principles: minimized traffic load and reduced communication with the cloud; usage of light-weighted operations and an optimized combination of the security methods.

Fiorini, SR, Bermejo-Alonso J, Gon P, de Freitas PE, Alarcos OA, Olszewska JI, Prestes E, Schlenoff C, Ragavan SV, Redfield S, Spencer B, Li H.  2017.  A Suite of Ontologies for Robotics and Automation [Industrial Activities], March. IEEE Robotics Automation Magazine. 24:8-11., Number 1 Abstract

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Roque, AS, Pohren D, Michelin TJ, Pereira CE, Freitas EP.  2017.  EFT Fault Impact Analysis on Performance of Critical Tasks in Intravehicular Networks, Oct. IEEE Transactions on Electromagnetic Compatibility. 59:1415-1423., Number 5 Abstract

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