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International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)

作者： Marcos G. Bernardo Raimundo C. S. Freire Antonio A. L. de Souza Arthur S. Souza Henrique D. Silva Post-Graduation Program in Electrical Engineering PPgEE/UFCG Federal University of Campina Grande UFCG Campina Grande Brazil Federal University of Paraiba UFPB João Pessoa Brazil

In this paper, we propose a model for the rapid characterization of MOS-type capacitors in the accumulation region. Closed-form analytical expressions have been used to estimate the equivalent circuit elements, which are calculated as a function of the design parameters of the layout and of the technological process. To verify the modeling carried out, a set of MOS capacitors with different geometries were simulated in ADS® and the main characteristics of the capacitor were compared. Based on the model, an analysis/optimization was implemented in MATLAB® in order to determine the capacitor/cell layout parameters that optimize its structure, based on a figure of merit. Compared to another work in the literature, the proposed method showed a chip-area reduction of 20.82% and an ESR of 16.38% smaller for the same capacitance value. Capacitor optimization not only contributes to reducing costs but also to improving the performance of the circuit it will make part of.

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An Efficient Three-Factor Authenticated Key Agreement Technique Using FCM Under HC-IoT Architectures

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Computers, Materials & Continua 2022年第7期72卷 1373-1389页

作者： Chandrashekhar Meshram Agbotiname Lucky Imoize Sajjad Shaukat Jamal Parkash Tambare Adel R.Alharbi Iqtadar Hussain Department of Post Graduate Studies and Research in Mathematics Jayawanti Haksar Government Post-Graduation CollegeCollege of Chhindwara UniversityBetul460001M.P.India Department of Electrical and Electronics Engineering Faculty of EngineeringUniversity of LagosAkokaLagos100213Nigeria Department of Electrical Engineering and Information Technology Institute of Digital CommunicationRuhr University44801BochumGermany Department of Mathematics College of ScienceKing Khalid UniversityAbhaSaudi Arabia Water Resources&Applied Mathematics Research Lab Nagpur440027India College of Computing and Information Technology University of TabukTabuk71491Saudi Arabia Mathematics Program Department of MathematicsStatistics and PhysicsCollege of Arts and SciencesQatar University2713DohaQatar

The Human-Centered Internet of Things(HC-IoT)is fast becoming a hotbed of security and privacy *** users can establish a common session key through a trusted server over an open communication channel using a three-party authenticated key *** of the early authenticated key agreement systems relied on pairing,hashing,or modular exponentiation processes that are computationally intensive and *** order to address this problem,this paper offers a new three-party authenticated key agreement technique based on fractional chaotic *** new scheme uses fractional chaotic maps and supports the dynamic sensing of HC-IoT devices in the network architecture without a password *** projected security scheme utilized a hash function,which works well for the resource-limited HC-IoT *** results show that our new technique is resistant to password guessing attacks since it does not use a ***,our approach provides users with comprehensive privacy protection,ensuring that a user forgery attack causes no ***,our new technique offers better security features than the techniques currently available in the literature.

关键词： Three-party authenticated key agreement anonymity fractional chaotic maps Chebyshev polynomial password table human-centered internet of things(HC-IoT)

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Information Gain applied to reduce model-building time in decision-tree-based intrusion detection system

Information Gain applied to reduce model-building time in de...

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Iberian Conference on Information Systems and Technologies (CISTI)

作者： Moisé s S. De Sousa Carlos Eduardo Lacerda Veiga Robson De O. Albuquerque William F. Giozza Professional Post-Graduation Program in Electrical Engineering&#x2013 PPEE&#x2013 Electrical Engineering Department Faculty of Technology University of Bras&#x00ED lia (UnB) Bras&#x00ED lia Brazil Advocacia-Geral da Uni&#x00E3 o Bras&#x00ED

Due to the large amount of sensitive data generated by websites, it is possible to understand the progress of attacks to their databases. This work proposes an intrusion detection system based on data mining and machine learning techniques to detect and mitigate the damage caused by these attacks. It adopts the Information Gain method of selecting attributes in order to reduce the model-building time without affecting the classification performance. Using the CIC-IDS 2017 dataset, this work shows how different decision tree algorithms (Random Forest and J48 Algorithm) behave even if they receive equal parameters and data. Using Information Gain to select attributes, the proposed system achieves a processing time reduction of up to 90%.

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A Robust Remote Client Password Authentication Technique for Smart Cities E-Governance Applications

A Robust Remote Client Password Authentication Technique for...

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2023 IEEE International Conference on Communications, Computing, Cybersecurity and Informatics, CCCI 2023

作者： Obaidat, Mohammad S. Meshram, Chandrashekhar Kartikey, Deepak Hsiao, Kuei-Fang Imoize, Agbotiname Lucky Barve, Sharad Kumar Abdullah Ii School of Information Technology The University of Jordan Amman11942 Jordan School of Computer and Communication Engineering University of Science and Technology Beijing Beijing100083 China School of Computing Srm University Department of Computational Intelligence TN Kattankulathur603203 India School of Engineering The Amity University UP Noida201301 India Jayawanti Haksar Government Post Graduation College College of Barkatullah University Department of Post Graduation Studies and Research in Mathematics M.P. Betul460001 India S.S.P. Govt. College Waraseoni Department of Mathematics M.P. Balaghat India University of Texas-Permian Basin Computer Science Department OdessaTX79762 United States University of Lagos Faculty of Engineering Department of Electrical and Electronics Engineering Lagos100213 Nigeria Institute of Digital Communication Ruhr University Department of Electrical Engineering and Information Technology Bochum44801 Germany Pandit S. N. Shukla University Shahdol Department of Mathematics Madhya Pradesh Shahdol484001 India

ISBN: (纸本)9798350302561

Smart cities are fast proliferating the global space in recent times. In order to achieve the envisioned next-generation cities, the smart city paradigm aspires to develop a completely integrated network-based infrastructure. With the development of innovative smart cities, ICT-based e-governance has made it possible for services to be delivered intelligently and interactively via online platforms. However, the communication between government agencies and other stakeholders in the smart city ecosystem is through open channels, which poses serious security concerns. In order to address this problem, this work proposes a robust remote client password authentication technique for e-governance applications in smart cities. The proposed authentication technique is lightweight, resistant to several attacks, and achieves low computational overhead. © 2023 IEEE.

关键词： Smart cards

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Triple RSIW Fed Antipodal Vivaldi Antenna for Bandwidth Improvement

Triple RSIW Fed Antipodal Vivaldi Antenna for Bandwidth Impr...

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European Conference on Antennas and Propagation, EuCAP

作者： Camila C. R. de Albuquerque Alfrêdo Gomes Neto Alexandre M. de Oliveira Georgina K. de F. Serres Alexandre Jean René Serres Post-Graduation Program in Electrical Engineering Federal University of Campina Grande Campina Grande Brazil Post-Graduation Program in Electrical Engineering Federal Institute of Paraiba João Pessoa Brazil Maxwell Laboratory of Microwaves and Applied Electromagnetism Federal Institute of São Paulo Cubatão Brazil

In this paper, it is presented a new modified structure of antipodal Vivaldi antenna (AVA). The structure is fed by a triple ridged substrate integrated waveguide (RSIW) on a single layer low-cost FR4 substrate. The ridges insertion allows a bandwidth enhancement due to the cut-off frequency decrease and consequently the miniaturization. The new structure is compared to an AVA fed by a classical SIW designed for a cut-off frequency around 4 GHz. Numerical simulations were performed and a bandwidth enhancement of 660 MHz was achieved with a gain of 2.06-7.59dBi within the frequency range.

关键词： Microwave antennas Vivaldi antennas Cutoff frequency Bandwidth Numerical simulation Microwave theory and techniques Indexes

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Wireless sensor network for monitoring reproductive events in cattle 5

Wireless sensor network for monitoring reproductive events i...

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5th International Symposium on Instrumentation Systems, Circuits and Transducers, INSCIT 2021

作者： Valadao, Yuri Das Neves Feldman, Max Muller, Ivan Da Silva, Bruno Fontana Menegassi, Silvio Renato Oliveira Federal University of Rio Grande Do sul Electrical Engineering Post Graduation Program Porto Alegre Brazil Instituto Federal Sul-Rio-Grandense Campus Sapiranga Sapiranga Brazil Federal University of Rio Grande Do sul Zootechnics Department Porto Alegre Brazil

ISBN: (纸本)9781728197265

Cattle monitoring is an important demand in precision livestock and crossbreed quality control. Previous studies and products have been proposed to approach this problem, although several factors pose challenges for real-time data acquisition and analysis. In this work, we present a proof of concept prototype for a cattle crossbreed monitoring system based on wireless sensor networks. The hardware implementation, the sensor data acquisition system and the field tests are described in detail. Supervised machine learning algorithms are applied for copulation detection and the classification metrics show that some of the proposed models have good sensitivity, suggesting promising directions for future steps and optimization. © 2021 IEEE.

关键词： Wireless sensor networks

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A Robust Remote Client Password Authentication Technique for Smart Cities E-Governance Applications

A Robust Remote Client Password Authentication Technique for...

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Communications, Computing, Cybersecurity, and Informatics (CCCI), International Conference on

作者： Mohammad S. Obaidat Chandrashekhar Meshram Deepak Kartikey Kuei-Fang Hsiao Agbotiname Lucky Imoize Sharad Kumar Barve King Abdullah II School of Information Technology The University of Jordan Amman Jordan School of Computer and Communication Engineering University of Science and Technology Beijing Beijing China Department of Computational Intelligence School of Computing SRM University Kattankulathur TN India School of Engineering The Amity University Noida UP India Department of Post Graduation Studies and Research in Mathematics Jayawanti Haksar Government Post Graduation College College of Barkatullah University Betul M.P. India Department of Mathematics S.S.P. Govt. College Waraseoni Balaghat M.P. India Computer Science Department University of Texas-Permian Basin Odessa TX USA Department of Electrical and Electronics Engineering Faculty of Engineering University of Lagos Lagos Nigeria Department of Electrical Engineering and Information Technology Institute of Digital Communication Ruhr University Bochum Germany Department of Mathematics Pandit S. N. Shukla University Shahdol Shahdol Madhya Pradesh India

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Reinforcement Learning-Based Edge Caching for IoT in Compute-First Networks

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IEEE Transactions on Consumer Electronics 2025年

作者： Asmat, Hamid Din, Ikram Ud Almogren, Ahmad Rodrigues, Joel J. P. C. Department of Information Technology University of Haripur Haripur22620 Pakistan King Saud University College of Computer and Information Sciences Chair of Cyber Security Department of Computer Science Riyadh11633 Saudi Arabia Post-graduation Program in Electrical Engineering Teresina Brazil

6G networks require ultra-low latency and intelligent resource management in IoT environments. Compute-First Networking (CFN), integrating distributed computing and edge caching, addresses backhaul congestion. This paper proposes CaRL, a DRL-based caching framework using TD3 algorithm. CaRL optimizes cache placement at edge nodes by incorporating real-time network state, content popularity, and resource utilization. Simulations show CaRL improves cache hit ratio, reduces latency, and enhances bandwidth efficiency, and ensures secure caching decisions under dynamic network conditions. Unlike existing methods, CaRL adapts to dynamic network conditions by integrating latency, CPU, and memory metrics, demonstrating scalability and adaptability in CFN-driven 6G environments. © 1975-2011 IEEE.

关键词： Edge computing

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Theoretical insights into the chemical bonding, electronic structure, and spectroscopic properties of the lanarkite Pb2SO5 structure

arXiv

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arXiv 2023年

作者： Fabris, Guilherme S.L. Ferrer, Mateus M. Sambrano, Julio R. Almeida, Cláudio R.R. Paskocimas, Carlos A. La Porta, Felipe A. Graduate Program in Materials Science and Engineering Technological Development Center Universidade Federal de Pelotas RS Pelotas96010-610 Brazil Modeling and Molecular Simulation Group São Paulo State University Bauru São Paulo17033-360 Brazil Department of Materials Engineering Federal University of Rio Grande do Norte RN Natal59078-970 Brazil Postgraduate Program in Science and Engineering of Materials Federal University of Rio Grande do Norte RN Natal59078-970 Brazil Federal University of Technology - Paraná Nanotechnology and Computational Chemistry Laboratory Avenida dos Pioneiros 3131 CEP PR Londrina86036-370 Brazil State University of Londrina Post-Graduation Program in Chemistry Rodovia Celso Garcia Cid 445 km 380 CEP PR Londrina86057-970 Brazil

Lanarkite is a mineral formed by a combination of lead, sulphur, and oxygen atoms arranged in the general chemical formula Pb2SO5 (PSO) that crystallises with monoclinic symmetry (belonging to the C2/m space group, No. 12). This mineral was first discovered in Lanarkshire, Scotland and was named after its location. PSO has a unique structure comprising alternating penta-coordinated lead [PbO5] and tetra-coordinated sulphur [SO4] clusters. This lanarkite-type structure has recently attracted significant scientific interest and has been the focus of the superconducting material research community. However, its chemistry needs to be explored further. This article presents a comprehensive investigation on the chemical bonding, electronic structure, and spectroscopic properties of the lanarkite-type PSO structure from a computational perspective. Thus, different functionals in the DFT (e.g., PBE, PBE0, PBESOL, PBESOL0, BLYP, WC1LYP37, and B3LYP) were assessed to accurately predict their fundamental properties. All the DFT calculations were performed using a triple-zeta valence plus polarisation basis set. Among all the DFT functionals tested in this study, PBE showed the best agreement with the experimental data available in the literature. Our results also reveal that the [PbO5] clusters are formed with three Pb–O bond lengths, with values of about 2.32, 2.59, and 2.84 Å, respectively, while the [SO4] clusters have the same S–O bond length of 1.57 Å. We performed a complete topological analysis of this system to comprehend these structural differences. Additionally, the PSO structure has an indirect band gap energy of 2.9 eV and an effective mass ratio (mℎ∗ /me∗) of about 0.415 (using PBE calculations) which may, in principle, indicate a low recombination of electron-hole pairs in the lanarkite structure. Therefore, we believe that a detailed understanding of their electronic structures, spectroscopic properties as well as their chemical bonding is critically important

关键词： Lead compounds

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Estimation of channel delay in analog-to-information converters

Estimation of channel delay in analog-to-information convert...

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2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019

作者： Arruda, Bruno W.S. Gurjao, Edmar C. Torres, Luis F.N.M. Reist, Vanderson L. Freire, Raimundo C.S. Post-Graduation Program in Electrical Engineering COPELE Federal University of Campina Grande Campina Grande PB Brazil CDMI - IFAM Manaus AM Brazil

ISBN: (纸本)9781728103976

Analog-to-Information Converter (AIC) is the physical implementation of Compressed Sensing (CS) systems to digitize signals directly from the analog domain. Due to non-idealities of components AIC hardware needs a calibration step to adjust parameters before its utilization. In this paper, we consider a theoretical linear model of an AIC architecture composed by parallel channels that suffers from synchronization problems between the input signal and the internal signals used to perform the measurement. Using a radar inspired technique we propose a method to estimate the delay between these signals. Obtained results show the accuracy of the proposed method and its potential to be used in AIC calibration techniques. © 2019 IEEE

关键词： Compressed sensing

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