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A Hybrid Cybersecurity Algorithm for Digital Image Transmission over Advanced Communication Channel Models

computers, Materials & Continua 2024年第4期79卷 201-241页

作者： Naglaa F.Soliman Fatma E.Fadl-Allah Walid El-Shafai Mahmoud I.Aly Maali Alabdulhafith Fathi E.Abd El-Samie Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Electronics and Communications Faculty of EngineeringZagazig UniversityZagazig44519Egypt Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

The efficient transmission of images,which plays a large role inwireless communication systems,poses a significant challenge in the growth of multimedia ***-quality images require well-tuned communication *** Single Carrier Frequency Division Multiple Access(SC-FDMA)is adopted for broadband wireless communications,because of its low sensitivity to carrier frequency offsets and low Peak-to-Average Power Ratio(PAPR).Data transmission through open-channel networks requires much concentration on security,reliability,and *** data need a space away fromunauthorized access,modification,or *** requirements are to be fulfilled by digital image watermarking and *** paper ismainly concerned with secure image communication over the wireless SC-FDMA systemas an adopted communication *** introduces a robust image communication framework over SC-FDMA that comprises digital image watermarking and encryption to improve image security,while maintaining a high-quality reconstruction of images at the receiver *** proposed framework allows image watermarking based on the Discrete Cosine Transform(DCT)merged with the Singular Value Decomposition(SVD)in the so-called DCT-SVD *** addition,image encryption is implemented based on chaos and DNA *** encrypted watermarked images are then transmitted through the wireless SC-FDMA *** linearMinimumMean Square Error(MMSE)equalizer is investigated in this paper to mitigate the effect of channel fading and noise on the transmitted *** subcarrier mapping schemes,namely localized and interleaved schemes,are compared in this *** study depends on different channelmodels,namely PedestrianAandVehicularA,with a modulation technique namedQuadratureAmplitude Modulation(QAM).Extensive simulation experiments are conducted and introduced in this paper for efficient transmission of encrypted watermarked *** addition,different variants of SC-FDMA bas

关键词： Cybersecurity applications image transmission channel models modulation techniques watermarking and encryption

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Enhancing the Smart Readiness Indicator Scheme: Methodology Assessment through 20 Use Cases 3

Enhancing the Smart Readiness Indicator Scheme: Methodology ...

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3rd International Conference on Energy Transition in the Mediterranean Area, SyNERGY MED 2024

作者： Zamanidou, Afroditi Kothona, Despoina Fokaides, Paris Christoforidis, Georgios C. University of Western Macedonia Faculty of Engineering Electrical & Computer Engineering Department Greece Kaunas University of Technology Faculty of Civil Engineering and Architecture Kaunas Lithuania

ISBN: (纸本)9798350375923

The European Union developed the Smart Readiness Indicator (SRI) to enhance energy efficiency and encourage the adoption of smart technologies in buildings, tackling their high energy usage and carbon emissions. This study evaluates the SRI methodology through the assessment of 20 diverse use cases, including residential and non-residential buildings, using Methods A and B of the SRI assessment scheme. Key variables such as climate zone, building type, year of construction, and the integration of smart-ready services were considered to ensure a comprehensive *** engineers assessed the buildings using the SRI EU Excel Tool and rated the methodology based on criteria including accuracy, usability, comprehensiveness, flexibility, and impact on decision-making. The results revealed high ratings for accuracy (45% rated as "Very Good"and 30% as "Excellent") and usability (50% rated as "Very Good"), while comprehensiveness was rated more moderately (40% "Good"). However, flexibility and adaptability emerged as areas requiring improvement, with 45% of assessments rated as "Fair."The SRI methodology demonstrated strong potential but requires further refinement to address the needs of diverse building types and more complex smart technologies. The study concludes that the SRI framework is a valuable tool for promoting energy efficiency and smart technology adoption across the EU building sector. However, additional research is recommended to integrate real-time data and automation technologies, and to enhance the framework's scalability and adaptability for future building systems. © 2024 IEEE.

关键词： Smart homes

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Comparative Study of Maximum-Power-Point Tracking with Multiplier-Based Step-Size Variation 3

Comparative Study of Maximum-Power-Point Tracking with Multi...

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3rd International Conference on Electronic and electrical engineering and Intelligent System, ICE3IS 2023

作者： Jantharamin, Niphat Lousuwankun, Peeradech Naresuan University Faculty of Engineering Department of Electrical and Computer Engineering Phitsanulok Thailand

ISBN: (纸本)9798350327762

This research paper presents a rigorous investigation into photovoltaic (PV) power generation, focusing on the exploration of untapped potential within step-size variation techniques. In the dynamic context of fluctuating weather conditions, the incremental conductance (InC) algorithm is employed to guide the PV array working point towards the elusive maximum power point (MPP). Meticulous step-size adaptation accelerates the process of maximum-power-point tracking (MPPT), effectively circumventing limitations of conventional fixed step-size schemes by curbing undesirable oscillations around the MPP. The study delves into MPPT techniques, comparing steadfast fixed step-size multiplication with dynamic gradient-magnitude multiplication for PV array voltage perturbation. Extensive MPPT simulations unveil the superior performance of the gradient-magnitude multiplication technique, fueled by its continual step-size adaptation. The results are complemented by a comprehensive guideline for acceptable multiplier selection, showcasing the potential of these innovative methods in optimizing PV power generation. © 2023 IEEE.

关键词： Maximum power point trackers

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User Input Search - Custom Motion Estimation Algorithm Optimized for UAVs 46

User Input Search - Custom Motion Estimation Algorithm Optim...

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46th ICT and Electronics Convention, MIPRO 2023

作者： Benjak, J. Hofman, D. Faculty of Electrical Engineering and Computing Department of Control and Computer Engineering Zagreb Croatia

ISBN: (纸本)9789532331042

Unmanned aerial vehicle technology is growing rapidly as it finds its application in the various industries, including military & defense, agriculture, logistics, transportation, healthcare, entertainment and many others. One of the fastest growing industries including drones is the entertainment industry. More specifically, First Person View (FPV) piloting has become a popular sport which attracts huge masses. In FPV systems, the pilot wears FPV goggles and controls the drone using a controller, and the drone transmits video data to the goggles in real time. Since drones usually fly very quickly, the video quality in terms of resolution, compression artefacts and end-to-end delay must be maintained. This paper explores the idea of optimizing the Motion Estimation (ME) algorithm of existing High Efficiency Video Coding (HEVC) algorithms by utilizing user input from the controller. For example, if the drone is directed to hover to the left, then it would make sense to search for the most similar blocks in the previous video frame only on the left side of the referent block. For the purpose of this research, a HEVC video coder was customized to receive additional input besides the video data - the user input from the controller, or in other words, drone movement directions. We call this ME algorithm User Input Search (UIS). Our UIS algorithm is compared with the standard ME algorithms and its efficiency is tested. © 2023 MIPRO Croatian Society.

关键词： Real time systems

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Single/Multi-band graphene-based disk THz absorbers with single graphene layer: conceptual design

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Optical and Quantum Electronics 2024年第11期56卷 1-26页

作者： Mohsen Daraei, Omid Rezaei, Pejman Zamzam, Pouria Bozorgi, S. Amir Amiri, Nafiseh Ebrahimi, Farshad Radpour, Hamed Rastkar Mirzaei, Milad Mohapatra, Saswat Department of Electrical and Computer Engineering University of Houston HoustonTX77204 United States Electrical and Computer Engineering Faculty Semnan University Semnan Iran Center for Digital Safety and Security AIT Austrian Institute of Technology Seibersdorf Austria The School of Electrical and Computer Engineering University of Oklahoma NormanOK73019 United States

This article introduces a unified structure for broadband and multi-band graphene-based absorbers. The absorption process relies on multiple circular graphene disks positioned on a glass surface. The absorber’s functionality can be adjusted from broad-band to multi-band by varying its height. To thoroughly assess its performance, we employed two theoretical frameworks: the transmission line model (TLM) and the Finite Element Method (FEM). Additionally, we conducted optical analysis using various incident wave polarizations. To validate our findings, we simulated the structure in the CST Studio simulator. The analysis reveals that the structure achieves over 90% absorption in the broad-band phase. Furthermore, it exhibits five absorption peaks: 28.1%, 99.9%, 98.1%, 94%, and 76% at frequencies of 0.3, 1, 2, and 2.7 THz, respectively, in the multi-band absorption phase. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.

关键词： Terahertz waves

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Comparison Between Kramers-Kronig and Self-coherent Transceivers for Free Space Optical Communications

Comparison Between Kramers-Kronig and Self-coherent Transcei...

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2023 Photonics North, PN 2023

作者： Nasrollahzadeh, Y. Kumar, S. Deen, M.J. McMaster University Faculty of Engineering Department of Electrical & Computer Engineering Hamilton Canada

ISBN: (纸本)9798350326734

Both Kramers-Kronig and self-coherent transceivers use a pilot carrier at the transmitter and as a result, the oscillator-signal mixing efficiency is much higher than coherent transceivers. However, Kramers-Kronig transceivers suffer from poor transmitter power efficiency while self-coherent transceivers require a larger receiver bandwidth due to heterodyne detection. The performance of Kramers-Kronig transceivers is better than self-coherent transceivers, provided that the pilot carrier power is sufficiently large. © 2023 IEEE.

关键词： Efficiency

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Optimizing Automotive Cybersecurity with Cost-Sensitive Decision Forest Algorithm in IoV 6

Optimizing Automotive Cybersecurity with Cost-Sensitive Deci...

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6th International Conference on Cybernetics and Intelligent System, ICORIS 2024

作者： Qureshi, Salwa Umar Souri, Alireza Inanç, Nihat Department of Software Engineering Faculty of Engineering Haliç University Istanbul34060 Turkey Department of Computer Engineering Faculty of Engineering Haliç University Istanbul34060 Turkey Department of Electrical and Electronics Engineering Faculty of Engineering Haliç University Istanbul34060 Turkey

ISBN: (纸本)9798331539603

In the quickly changing world of connected cars, having strong cybersecurity is essential. To protect vehicular networks from cyber threats, this study provides an Embedded Intrusion Detection System (IDS) that has been optimized using the Cost-Sensitive Decision Forest (CSForest) optimization algorithm. To improve data usefulness and model performance, a thorough preprocessing and feature engineering process was carried out using a real vehicular GPS tracking process from ToN-IoT dataset. After evaluating several machine learning algorithms, CSForest received the best results, scoring 100% accuracy along with flawless precision, recall, and F-measure scores. Our results highlight how well the CSForest-based IDS can detect and stop possible cyberattacks in connected cars, which will improve automotive cybersecurity and create a safer driving environment for vehicular communication systems. The study also emphasizes how crucial it is to keep updating IDS models to handle the ever-changing nature of cyberattacks and maintain the dependability and resilience of vehicular communication systems in the future. The discovery has practical consequences as it can improve connected and autonomous car cybersecurity infrastructure substantially, lowering vulnerabilities and guaranteeing a safer transportation ecosystem. © 2024 IEEE.

关键词： Cybersecurity

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Robust Control Design for a Two-Wing MIMO Chaotic System 9

Robust Control Design for a Two-Wing MIMO Chaotic System

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9th International Conference on Control, Instrumentation and automation, ICCIA 2023

作者： Azimi, Alireza Boroujeni, Elham Amini Department of Electrical and Computer Engineering Faculty of Engineering Kharazmi University Tehran Iran

ISBN: (纸本)9798350366013

One of the most important issues related to chaotic systems is the chaos control problem, which is mainly aimed at stabilizing an unstable periodic orbit. The approach of this paper is to present different methods of robust control for the linearized chaotic system. First, a linearized model of the given system is presented, and by considering the open-loop conditions of the system, proportional-integral and H∞ controllers are designed with three centralized, decentralized, and sequential design approaches in the presence of different real-world interferences and disturbances, and the strengths and weaknesses of each method are examined. The results showed that the centralized H∞ controller outperformed decentralized and sequential controllers by various metrics and showed promising robustness to disturbances, interference, and plant variations/nonlinearities. Its disturbance rejection, fast response, and ability to handle nonlinearities make it a suitable candidate for controlling this system. © 2023 IEEE.

关键词： Chaotic systems

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Video Surveillance Authentication: Real-Time ENF Signal Hiding at the Edge 24

Video Surveillance Authentication: Real-Time ENF Signal Hidi...

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24th International Conference on Digital Signal Processing, DSP 2023

作者： Lykourinas, Antonios Skodras, Athanassios Department of Electrical and Computer Engineering Faculty of Engineering University of Patras Patras Greece

ISBN: (纸本)9798350339598

Due to the significance of the visual information exchanged in Internet of Video Things (IoVT) networks, attackers are constantly launching new attacks and attempt to exploit new vulnerabilities. One of the most common and difficult-to-prevent attacks on the Visual Layer is the Frame Duplication Attack (FDA). Recently, two techniques were proposed for FDA detection at the edge by using the embedded electrical Network Frequency (ENF) signals in an effort to surpass limitations of conventional passive methods. In this paper, a Real-Time ENF signal hiding technique at the edge is proposed. Our motivation is to examine the possibility of authenticating the surveillance feed by hiding the ENF signal. Experiments are conducted, including an extensive performance comparison between the proposed and reference encoder, a feasibility study for the proposed encoder's integration to a Raspberry Pi for video streaming purposes and finally the implementation of a proof-of-concept prototype. According to the findings, the proposed approach provides real-time FDA detection at reduced computational complexity and hardware requirements, thus rendering this method appropriate for applications at the edge. © 2023 IEEE.

关键词： Security systems

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Data-driven electrical resistance tomography for robotic large-area tactile sensing

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Science China(Information Sciences) 2024年第9期67卷 336-337页

作者： Wendong ZHENG Huaping LIU Xiaofeng LIU Fuchun SUN School of Electrical Engineering and Automation Tianjin University of Technology Department of Computer Science and Technology Tsinghua University Key Laboratory of Maritime Intelligent Cyberspace Technology (Hohai University) Ministry of Education

Tactile sensing plays a crucial role in enabling robots to safely interact with objects in dynamic environments [1].Given that potential physical contact can occur at any location during robot interaction, there is a ... 详细信息

关键词： Robot applications

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