Listar por Grupos de Investigación "Grupo de Tecnoloxía Electrónica e Comunicacións (GTEC)"
Mostrando ítems 1-20 de 258
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60-GHz Millimeter-Wave Propagation Inside Bus: Measurement, Modeling, Simulation, and Performance Analysis
(Institute of Electrical and Electronics Engineers, 2019)[Abstract] Millimeter-wave (mmWave) transmission over the unlicensed 60-GHz spectrum is a potential solution to realize high-speed internet access, even inside mass transit vehicles. The solution involves communication ... -
A Blockchain Based System for Preventing Academic Forgery: Design and Practical Evaluation for CPU-Based and Low-Power Computers
(IEEE, 2024)[Abstract]: This paper describes a lightweight proof-of-concept that tackles the problem of academic certificate forgery with the use of a smart contract deployed in the Ethereum blockchain. The implemented application ... -
A Bluetooth 5 Opportunistic Edge Computing System for Vehicular Scenarios
(MDPI, 2022-11-01)[Abstract]: The limitations of many IoT devices in terms of storage, computing power and energy consumption require them to be connected to other devices when performing computationally intensive tasks, as happens with IoT ... -
A Collaborative Augmented Reality Application for Training and Assistance during Shipbuilding Assembly Processes
(MDPI AG, 2020-08-18)[Abstract] This paper presents the development of a novel Microsoft HoloLens collaborative application that allows shipyard operators to interact with a virtual clutch during its assembly in a real Turbine workshop. Such ... -
A Comparative Study of Low Cost Open Source EEG Devices
(MDPI AG, 2019-08-05)[Abstract] A comparison of two open source electroencephalography devices designed to acquire signals associated to the brain activity is presented in this work. The experiments are developed considering the task of ... -
A comparative study of STBC transmissions at 2.4 GHz over indoor channels using a 2 × 2 MIMO testbed
(Hindawi, 2008)[Abstract]: In this paper we employ a 2 × 2 Multiple-Input Multiple-Output (MIMO) hardware platform to evaluate, in realistic indoor scenarios, the performance of different space-time block coded (STBC) transmissions at ... -
A Comparison of Optimization Techniques for Power Patterns with Low Sidelobes Generated by Linear Arrays with Efficient Excitation Distributions
(John Wiley & Sons, Inc., 2005-04-05)[Abstract] Equispaced linear arrays that have uniformly excited central elements and monotonically decreasing flanking segments have been shown to yield low-sidelobe patterns with specified constraints on the effective ... -
A cost-effective IoT system for monitoring Indoor radon gas concentration
(M D P I AG, 2018-07-08)[Abstract] Radon is a noble gas originating from the radioactive decay chain of uranium or thorium. Most radon emanates naturally from the soil and from some building materials, so it can be found in many places around the ... -
A Cost-Effective Thermal Imaging Safety Sensor for Industry 5.0 and Collaborative Robotics
(Springer Science and Business Media Deutschland GmbH, 2023)[Abstract]: The Industry 5.0 paradigm focuses on industrial operator well-being and sustainable manufacturing practices, where humans play a central role, not only during the repetitive and collaborative tasks of the ... -
A Deep Learning-Based Strategy to Predict Self-Interference in SFN DTT
(MDPI, 2021)[Abstract] A deep learning-based strategy for the analysis of the self-interference in single frequency networks (SFNs) for digital terrestrial television (DTT) broadcasting is considered. Several laboratory measurements ... -
A Fog Computing and Cloudlet Based Augmented Reality System for the Industry 4.0 Shipyard
(MDPI AG, 2018)[Abstract] Augmented Reality (AR) is one of the key technologies pointed out by Industry 4.0 as a tool for enhancing the next generation of automated and computerized factories. AR can also help shipbuilding operators, ... -
A fog computing based cyber-physical system for the automation of pipe-related tasks in the Industry 4.0 shipyard
(M D P I AG, 2018-06-17)[Abstract] Pipes are one of the key elements in the construction of ships, which usually contain between 15,000 and 40,000 of them. This huge number, as well as the variety of processes that may be performed on a pipe, ... -
A framework to learn graph theory using simple wireless network models
(Wiley, 2016-11)[Abstract]: In order to improve the student learning process, we present a framework to define attractivecomputer laboratory lessons in Engineering Degrees. Theoretical concepts are illustrated from a practical point ofview ... -
A low-cost decision-aided channel estimation method for Alamouti OSTBC
(Springer, 2013-11)[Abstract] In wireless communication systems, channel state information (CSI) acquisition is typically performed at the receiver side every time a new frame is received, without taking into account whether it is really ... -
A MATLAB Interface for Analyzing Conformal Arrays Composed of Polarized Heterogeneous Elements
(Institute of Electrical and Electronics Engineers, 2011-10)[Abstract] As an extension and improvement of a previous work, this paper presents a graphical interface designed with MATLAB®, which is capable of representing both the spatial and electrical configurations of a conformal ... -
A MATLAB Tool for Visualizing the 3D Polar Power Patterns and Excitations of Conformal Arrays
(Institute of Electrical and Electronics Engineers, 2010-08)[Abstract] This paper describes the implementation of a MATLAB® tool to plot the three-dimensional polar radiation diagram generated by a conformal antenna array. A related tool has also been developed for visualizing the ... -
A Novel Channel Estimation Scheme Combining Adaptive Supervised and Unsupervised Algorithms
(IOS Press, 2012)[Abstract]: Channel estimation is a fundamental operation in digital communication systems that could be done using supervised or unsupervised (blind) strategies. Supervised techniques estimate the channel parameters using ... -
A Novel Criterion for Vehicle Classification using Inductive Vehicle Signatures
(Institute of Research Engineers and Doctors (IRED), 2016-04)[Abstract]: Inductive Loop Detectors (ILD) are the most commonly used sensors in traffic management systems. Using the acquired inductive signatures, most proposed systems classify the vehicles using a criterion based ... -
A Novel Hybrid Approach to Improve Performance on Frequency Division Duplex Systems with Linear Precoding
(Springer, 2010)[Abstrtact] Linear precoding is an attractive technique to combat interference in multiple-input multiple-output systems because it reduces costs and power consumption in the receiver equipment. Most of the frequency ... -
A Novel Strategy for Improving the Quality of Embedded Zerotree Wavelet Images Transmitted over Alamouti Coding Systems
(Springer, 2011)[Abstract] This work deals with the transmission of images, previously coded using the Embedded Zerotree Wavelet (EZW) transform, over wireless systems in which Space-Time Coding (STC) is used. It is shown how the system ...
