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Optimization of Basic 25 Gb/s TDM-PON for New Era Application 2

Optimization of Basic 25 Gb/s TDM-PON for New Era Applicatio...

2nd IEEE International Maghreb Meeting of the Conference on Sciences and Techniques of Automatic Control and computer engineering, MI-STA 2022

作者： Feituri, Ahmed B Abdullah, M.F.L. Swedan, Abdulhameed Almabrok Shaddad, Redhwan Q Suliman, Hager A Universiti Tun Hussen Onn Malaysia Faculty of Electrical and Electronic Engineering Batu Pahat Malaysia Applied Research and Development Authority Electronic and Communication Research Center Tripoli Libya Information Technology Taiz University Faculty of Engineering and Information Technology Taiz Yemen University of Misurata Department of Computer Science Misurata Libya

ISBN: (数字)9781665479189

ISBN: (纸本)9781665479189

High data rates over a single wavelength are required to meet and satisfy customer requirements for various new telecommunication applications. Therefore, encourage the full-service access network (FSAN) to choose a Time and Wavelength Division Multiplexing-Passive Optical Network (TWDM-PON) structure as a competitive candidate to upgrade the PON system data rate. IEEE and (ITU-T) announced single and multiple channels of the 25 G-EPON standards either by building a single line of the 50 Gb/s TDM-PON system or two lines of the 25 Gb/s TDM-PON. In addition, the Multi-Source Agreement (MSA) group adopted a single line of 25 GS-PON standards. Thus, deep research work is needed to evaluate these upgrades. The present investigation aims to configure and utilize the basic scheme of the 4×25 Gb/s TWDM-PON system for downstream signals to reach the 100 Gb/s PON capacity system. The progress of the method has been achievable due to the *** package. The software provides an excellent infrastructure to test and analyze the overall model performance. The wavelength plan from the C-band to the O-band is applied to mitigate chromatic dispersion (CD) and improve the received signals. The system distance reaches 23 km at a maximum of 128 end-users/wavelength. An opened eye diagram and acceptable BER and a Q factor values are obtained to investigate transmission quality. As a result, the outcomes of downstream signals are reasonable. Nevertheless, the optical reach is limited to 23 km at a 1:128 split ratio, so the split ratio of 1 to 256 users/ at a 20 km distance is our future work. © 2022 IEEE.

关键词： Passive optical networks

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Scale-free linear protocol design for global regulated state synchronization of discrete-time double-integrator multi-agent systems subject to actuator saturation

arXiv

引用

arXiv 2022年

作者： Liu, Zhenwei Saberi, Ali Stoorvogel, Anton A. College of Information Science and Engineering Northeastern University Shenyang China School of Electrical Engineering and Computer Science Washington State University PullmanWA United States Department of Electrical Engineering Mathematics and Computer Science University of Twente Enschede Netherlands

This paper studies global regulated state synchronization of discrete-time double-integrator multi-agent systems subject to actuator saturation by utilizing localized information exchange. We propose a scale-free linear protocol that achieves global regulated state synchronization for any network with arbitrary number of agents and arbitrarily directed communication graph that has a path between each agent and exosystem which generates the reference trajectory. © 2022, CC BY-NC-ND.

关键词： Multi agent systems

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Utilization of Machine Learning in Breast Cancer Detection

Utilization of Machine Learning in Breast Cancer Detection

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Information Technology (ACIT)

作者： Mutaz Momani Nidal Yousef Qotadeh Aljawazneh A.T Issa Suhaila Abuowaida Raed Alazaidah Mohammed Talat Khouj Radwan Batyha Esraa Abu Elsoud Department of Computer Science Faculty of Information Technology Zarqa University Zarqa Jordan Department of Computer Science Faculty of Information Technology Al-Albayt University Mafraq Jordan Department of Data Science and AI Faculty of Information Technology Zarqa University Zarqa Jordan Department of Electrical Engineering University of Business and Technology Jeddah Saudi Arabia Department of Computer Science Faculty of IT Applied Science Private University Amman Jordan

ISBN: (数字)9798331540012

ISBN: (纸本)9798331540029

Breast cancer is the most prevalent cancer among women and can be deadly, necessitating early detection to enhance patient outcomes and treatment effectiveness. Recently, Machine Learning (ML) techniques have shown potential in medical diagnostics, especially in breast cancer screening. ML algorithms examine extensive medical databases, including patient records, to identify subtle patterns and anomalies indicative of cancer. These algorithms excel at recognizing intricate patterns that may be missed by human analysis. Thereby, increasing the precision of breast cancer diagnoses. By evaluating and analyzing medical data, ML algorithms can detect minute anomalies, facilitating early identification of potential cancer cases. A significant advantage of ML-based breast cancer detection is its capacity for continuous learning and adaptation. In this study, we utilized 34 classifiers and five feature selection methods on three datasets. The first dataset comprises 286 instances with 10 integer-type features. The second dataset includes 699 instances with 10 integer-type features, and the third dataset consists of 286 instances with 13 integer-type features. For Dataset 1, Filtered Classifier and J-48 yielded the best results, while the Bayesnet classifier performed best on Dataset 2. In Dataset 3, SimpleLogistic and LMT achieved the best outcomes. Regarding feature selection, the study showed that the GainRatioAttributeEval, InfoGainAttributeEval, and CorrelationAttributeEval techniques are the best among the feature selection methods tested in the study.

关键词： Machine learning algorithms Databases Machine learning Feature extraction Breast cancer Pattern recognition Classification algorithms Medical diagnosis Information technology Medical diagnostic imaging

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A New Strategy for Designing Dual-band Antennas Based on Double-layer Metasurfaces

arXiv

引用

arXiv 2023年

作者： Hecht, Kristy Chahat, Nacer Chattopadhyay, Goutam Martini, Enrica Mencagli, Mario Junior Department of Electrical and Computer Engineering University of North Carolina at Charlotte CharlotteNC28223 United States California Institute of Technology PasadenaCA91109 United States University of Siena Department of Information Engineering and Mathematics Siena53100 Italy

We present a new strategy for the design of dual-band planar antennas based on metasurfaces (MTSs) in the microwave and millimeter-wave regimes. It is based on a double-layer structure obtained by cascading two subwavelength patterned metallic claddings supported by a grounded dielectric slab. Each metallic layer is responsible for controlling radiation at one frequency, and it is engineered to be transparent at the other frequency. Hence, the two metallic layers can be designed independently using the well-established techniques for the design of single-layered MTS antennas. Layers decoupling is achieved by suitably exploiting Foster’s reactance theorem, which regulates the frequency response of the impedance sheet modeling the metallic layer. By using the proposed strategy, a dual-band double-layered MTS antenna radiating a circularly polarized broadside beam in two popular frequency bands for climate science applications is designed and numerically verified. © 2023, CC BY.

关键词： Frequency response

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Reversible Data Hiding With Secret Encrypted Image Sharing and Adaptive Coding

引用

IEEE Internet of Things Journal 2025年

作者： Fang, Guangtian Wang, Feng Zhao, Chenbin Qin, Chuan Chang, Ching-Chun Chang, Chin-Chen Fujian University of Technology College of Computer Science and Mathematics Fuzhou350118 China Fujian University of Technology College of Computer Science and Mathematics Key Laboratory of Big Data Mining and Applications Fuzhou350118 China Monash University Faculty of IT Department of Software Systems and Cybersecurity VIC3800 Australia Ministry of Education School of Cyber Science and Engineering Key Laboratory of Aerospace Information Security and Trusted Computing Wuhan430072 China University of Shanghai for Science and Technology School of Optical-Electrical and Computer Engineering Shanghai200093 China Feng Chia University Information and Communication Security Research Center Taichuang 40724 Taiwan Feng Chia University Department of Information Engineering and Computer Science Taichung40724 Taiwan

To ensure the security of image information and facilitate efficient management in the cloud, the utilization of reversible data hiding in encrypted images (RDHEI) has emerged as pivotal. However, most existing RDHEI schemes suffer from lower security and limited embedding capacity. To tackle these challenges, we propose a reversible data hiding with secret encrypted image sharing and adaptive coding scheme. Specifically, in the encryption phase, we introduce an improved secret sharing (SS) encryption method based on the chinese remainder theorem for polynomials (CRTP). This method not only improves the security of encrypted images but also vacates a larger room for embedding. In the embedding phase, we introduce an adaptive coding embedding approach using XOR preservation (XORP) and huffman coding, which provides high embedding capacity. Experimental results and security analysis demonstrate that our proposed encryption method achieves optimal values in security indicators for encrypted images, such as information entropy, histograms, NPCR and UACI. The proposed embedding method is superior to some state-of-the-art schemes in terms of embedding capacity. Furthermore, in datasets BOSSBase and BOWS2, the average embedding rates of the proposed embedding approach can reach 2.1745 bpp and 2.0656 bpp, respectively. © 2025 IEEE.

关键词： adaptive coding chinese remainder theorem for polynomials encrypted images Reversible data hiding secret sharing

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Improving hp-Variational Physics-Informed Neural Networks for Steady-State Convection-Dominated Problems

arXiv

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arXiv 2024年

作者： Anandh, Thivin Ghose, Divij Jain, Himanshu Sunkad, Pratham Ganesan, Sashikumaar John, Volker Department of Computational and Data Sciences Indian Institute of Science Karnataka Bangalore India Department of Mechanical Engineering Indian Institute of Technology Tamil Nadu Madras India Weierstrass Institute for Applied Analysis and Stochastics Berlin Germany Department of Mathematics and Computer Science Freie University Berlin Germany

This paper proposes and studies two extensions of applying hp-variational physics-informed neural networks, more precisely the FastVPINNs framework, to convection-dominated convection-diffusion-reaction problems. First, a term in the spirit of a SUPG stabilization is included in the loss functional and a network architecture is proposed that predicts spatially varying stabilization parameters. Having observed that the selection of the indicator function in hard-constrained Dirichlet boundary conditions has a big impact on the accuracy of the computed solutions, the second novelty is the proposal of a network architecture that learns good parameters for a class of indicator functions. Numerical studies show that both proposals lead to noticeably more accurate results than approaches that can be found in the literature. © 2024, CC BY-NC-SA.

关键词： Stabilization

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Simultaneous symplectic reduction of quadratic forms into normal forms

arXiv

引用

arXiv 2024年

作者： Kamat, Rudra R. Mishra, Hemant K. Department of Mathematics Cornell University IthacaNY14850 United States Department of Mathematics King’s College London LondonWC2R 2LS United Kingdom School of Electrical and Computer Engineering Cornell University IthacaNY14850 United States Department of Mathematics and Computing Indian Institute of Technology Indian School of Mines Jharkhand Dhanbad826004 India

A fundamental result in symplectic linear algebra states that for a given positive semi-definite quadratic form on a symplectic space there exists a symplectic in which the quadratic form reduces to a normal form. The special case of the aforementioned result for positive-definite quadratic forms is known as Williamson’s theorem. In this work, we establish necessary and sufficient conditions on positive semi-definite quadratic forms on a symplectic space to be simultaneously reduced to their normal forms in a common symplectic basis. In particular, we establish conditions on 2n × 2n real symmetric positive-definite matrices to be simultaneously diagonalizable by a symplectic matrix in the sense of Williamson’s theorem. We also discuss some applications of the main result in quantum information theory and statistical thermodynamics. © 2024, CC BY.

关键词： Matrix algebra

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The modeling and mathematical analysis of the fractional-order of Cholera disease: Dynamical and Simulation

引用

Partial Differential Equations in applied mathematics 2024年 12卷

作者： Yaseen, Rasha M. Ali, Nidal F. Mohsen, Ahmed A. Khan, Aziz Abdeljawad, Thabet Department of biomedical Eng. Al-Khawarzmi College of Engineering University of Baghdad Baghdad Iraq Department of Medical Instrumentation Techniques Engineering Electrical Engineering Technical College Middle Technical University Baghdad Iraq Department of Mathematics College of Education for Pure Science (Ibn Al-Haitham) University of Baghdad Baghdad Iraq Department of Mathematics Open Education College Iraq Department of Mathematics and Sciences Prince Sultan University P.O. Box 66833 Riyadh 11586 Saudi Arabia Department of Mathematics and Applied Mathematics Sefako Makgatho Health Sciences Universitu Medusa 0204 South Africa Center for Applied Mathematics and Bioinformatics (CAMB) Gulf University for Science and Technology Hawally 32093 Kuwait

In this study, a cholera model with asymptomatic carriers was examined. A Holling type-II functional response function was used to describe disease transmission. For analyzing the dynamical behavior of cholera disease, a fractional-order model was developed. First, the positivity and boundedness of the system's solutions were established. The local stability of the equilibrium points was also analyzed. Second, a Lyapunov function was used to construct the global asymptotic stability of the system for both endemic and disease-free equilibrium points. Finally, numerical simulations and sensitivity analysis were carried out using matlab software to demonstrate the accuracy and validate the obtained results. © 2024 The Authors

关键词： Cholera model Fractional-order Sensitive analysis Stability analysis

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Prediction of Passenger Car Friction Brake Application Based on Longitudinal Dynamics Using On-Road Vehicle Driving Data

SSRN

引用

SSRN 2023年

作者： Jensen, Kenneth M. Santos, Ilmar F. Clemmensen, Line Katrine Harder Theodorsen, Søren Corstens, Harry J.P. Department of Civil and Mechanical Engineering Technical University of Denmark Kgs. Lyngby Denmark Department of Applied Mathematics and Computer Science Technical University of Denmark Kgs. Lyngby Denmark ILIAS Solutions Brussels Belgium

This work considers the problem of predicting the braking state of vehicles, i.e. when the friction brakes are being applied. The work is aimed at providing the foundation for the prediction of brake pad wear from vehicle usage data. The braking state is predicted from vehicle longitudinal dynamics, considering 6-axis inertial measurement unit (IMU), global navigation satellite system (GNSS), and vehicle on-board diagnostics (OBD-II) data, along with sensor fusion for more accurate vehicle state estimation. The proposed method aims at providing broad applicability to different vehicles, by using only standard OBD-II data instead of relying on manufacturer specific data. Rolling resistance coefficient and product of aerodynamic drag coefficient and frontal area are estimated using linear regression on data from vehicle coast-down tests with the drivetrain disengaged. Engine mass moment of inertia along with engine braking torque is estimated from similar tests with the drivetrain engaged in different gears. The engine braking torque is approximated using a polynomial expression in the engine speed. Braking state predictions are made by comparing measured longitudinal decelerations with estimated, assuming that if the measured exceeds the estimated, then the difference is caused by the application of the friction brakes. Experimental validation was carried out using two modern passenger cars. Comparisons of measured and estimated decelerations from coast-down tests with fitted parameters show good agreements when the drivetrain is disengaged, as well as engaged. For one vehicle labels for the braking state are obtained indirectly using a camera pointed at the brake pedal, using object tracking to determine if the brakes are being applied. For the other vehicle, the braking states are obtained more directly trough access to the brake pressure. Overall prediction performance is good with accuracy >94% and precision around 99%, while recall is around 90% across the two v

关键词： Parameter estimation

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Integrability of polynomial vector fields and a dual problem

arXiv

引用

arXiv 2024年

作者： Petek, Tatjana Romanovski, Valery G. Faculty of Electrical Engineering and Computer Science University of Maribor Koroska cesta 46 MariborSI-2000 Slovenia Institute of Mathematics Physics and Mechanics Jadranska 19 LjubljanaSI-1000 Slovenia Faculty of Natural Science and Mathematics University of Maribor Koroska cesta 160 MariborSI-2000 Slovenia Center for Applied Mathematics and Theoretical Physics Mladinska 3 MariborSI-2000 Slovenia

We investigate the integrability of polynomial vector fields through the lens of duality in parameter spaces. We examine formal power series solutions annihilated by differential operators and explore the properties of the integrability variety in relation to the invariants of the associated Lie group. Our study extends to differential operators on affine algebraic varieties, highlighting the intrinsic connection between these operators and local analytic first integrals. To illustrate the duality the case of quadratic vector fields is considered in detail. © 2024, CC BY.

关键词： Choquet integral

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