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Construction of perfect space-time codes
(2013-04-29)
In this work, we propose an innovative methodology to extend the construction of minimum and non-minimum delay perfect codes as a subset of cyclic division algebras over ℚ(ζ3), where the signal constellations are isomorphic ...
Intrusion detection system using optimum-path forest
(2011-12-01)
Intrusion detection systems that make use of artificial intelligence techniques in order to improve effectiveness have been actively pursued in the last decade. Neural networks and Support Vector Machines have been also ...
A hybrid model for new product development - a case study in the Brazilian telecommunications segment
(Ios Press, 2013-01-01)
This paper presents a hybrid model for the integrated development of products based on the decision models Funnel and Stage Gate. This hybrid model was designed in its complete and simplified versions with the main purpose ...
Mobile Agents For Supporting Ubiquity In Telecommunication Services
(Universidade Federal do Rio de Janeiro, 2001)
Antimony glasses with large nonlinear refractive indices, small two-photon absorption coefficients and ultrafast response at telecom wavelengths
(2007-12-01)
Nonlinear (NL) optical properties of antimony oxide based glasses (AG) were characterized for excitation wavelengths from 800 to 1600 m. The NL refractive indices, n2, and the two-photon absorption (TPA) coefficient, β, ...
Open and standardized tools for smart transducer networking
(2005-12-01)
IEEE 1451 Standard is intended to address the smart transducer interfacing problematic in network environments. Usually, proprietary hardware and software is a very efficient solution to in planent the IEEE 1451 normative, ...
Self-optimization of dense wireless sensor networks based on simulated annealing
(2012-10-05)
Wireless sensor network (WSN) Is a technology that can be used to monitor and actuate on environments in a non-intrusive way. The main difference from WSN and traditional sensor networks is the low dependability of WSN ...
Simulation in NS-2 of DNP3 protocol encapsulated over TCP/IP in smart grid applications
(2013-08-26)
In dealing with computer networks, these allow the flow of information through the resources of various equipment's. This work describes the implementation through the encapsulation of Protocol DNP3, usually employed in ...
Performance evaluation of future AMI applications in Smart Grid Neighborhood Area Networks
(IEEEFacultad de IngenieríaIngeniería TelemáticaDepartamento Académico de Tecnologías de Información y Comunicaciones (TICs), 2015-05-13)