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Rate Distortion Analysis of Wavefield Coding in Wireless Geophone Networks 8th

Rate Distortion Analysis of Wavefield Coding in Wireless G...

引用

8th EAI International Conference on Smart Grid and Innovative Frontiers in Telecommunications, SmartGIFT 2024

作者： Khan, Hamood ur Rehman Khan, Farhan Sir Syed Center for Advanced Studies in Engineering Islamabad Pakistan Electrical and Computer Engineering Program Habib University Karachi Pakistan

ISBN: (纸本)9783031788055

Current and future trends in seismic acquisition point towards higher geophone densities (forecasted to be 1M nodes per survey). The geophones’ high operating precision and a sampling rate of a few milliseconds leads to a huge aggregate data rate in the geophone array. To handle this large data rate a hierarchy of multiplexed lines (including fiber optic cables) are used, resulting in substantial deployment costs. This work considers wireless geophone networks to mitigate these costs. Because of limited bandwidth of the wireless medium, compression of acquired data is needed. We assess lossy source coding (signal compression) performance using a rate-distortion tradeoff based on a physical model of the earth. The distortion criterion used is mean squared error. The earth’s physical model considered here consists of a randomly layered subsurface structure where the acoustic impedance of the earth varies as a homogeneous spatial random process. The rate distortion performance is assessed in terms of the parameters of this physical model e.g., the speed of sound underground and correlation length of acoustic impedance process. In comparison with previous work, this paper derives a closed form expression for the autocorrelation function for the reflection process for the 3D subsurface volume. We also show from the resulting rate-distortion curves that the compression performance improves both as the coding bock length increases and as the correlation length of the medium properties increases. The rate-distortion surface as a function of normalized MSE and sound of speed underground is also computed and validated through extensive simulations. © ICST Institute for computer Sciences, Social Informatics and Telecommunications engineering 2025.

关键词： Signal distortion

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Accuracy Enhancing Time Limited Model Reduction Framework: Computational Efficiency in Power Systems 21

Accuracy Enhancing Time Limited Model Reduction Framework: C...

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21st International Bhurban Conference on Applied Sciences and Technology, IBCAST 2024

作者： Latif, Muhammad Ambreen, Hira Imran, Muhammad Zafar, Samra Imran, Muhammad Bashir, Sajid Sir Syed Center for Advanced Studies in Engineering Department of Electrical Engineering Islamabad Pakistan Department of Electrical Engineering Islamabad Pakistan Henan University School of Computer and Information Engineering Kaifeng475001 China College of Electrical & Mechanical Engineering NUST Islamabad Pakistan

ISBN: (纸本)9798331516680

The analytical and modelling precision required to build modern wind turbines makes them stable, controlled, and observable. This article presents a state-of-the-art method for lowering the model order of a wind turbine driven by a double-fed induction generator, where the rotational speed varies over time. The suggested approach uses state-space representations to set up a comprehensive and systematic framework for analysing wind turbine performance and checking for compliance with grid standards. A time-constrained Gramians-based novel balanced realization approach is employed to reduce the dimensionality of the large-scale wind turbine model. Stability and reduced approximation error are two benefits of the lower-order system. The proposed method also gives researchers an a priori formula for the error-bound, making computations faster and more efficient. Using substantial simulation data, we show that our method improves upon previous methods in optimising models that include wind turbines with changing rotational speeds, taking into account both stability and error computation. To enhance the efficacy and accuracy of their modeling procedures, academics and researchers analyzing wind turbines should incorporate this new methodology. © 2024 IEEE.

关键词： Asynchronous generators

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Modeling and Analysis of Design Parameters Selection for Biomechanical Movement of Prosthetic Finger 25

Modeling and Analysis of Design Parameters Selection for Bio...

引用

25th International Multi Topic Conference, INMIC 2023

作者： Mughal, Fawaz Mahmood Mughal, Asif Mahmood UET Dept. of Mechatronics Engineering Lahore Pakistan Center for Advanced Studies in Engineering Islamabad Pakistan

ISBN: (纸本)9798350317701

Prosthetic hands are modeled to mimic the human motion pattern for full and partial amputations. Partially amputated anthropomorphic hands have a variety of challenges for movement coordination between human fingers and robotic digits or prosthetic fingers. Modeling a prosthetic finger with an equivalent degree of freedom for various grip patterns with electrically actuated motors and mechanical assemblies requires a careful selection of design parameters for robust controllers in a wide range of application environments. In this study, we propose modeling of a prosthetic finger with two control joints operated with a DC micro-motor through gears, rotational spring, and rotary dampers. The torque of the motor drives the proximal-inter-phalange of the robotic finger coupled with the rotary shaft of the motor with gears. The distal inter phalange is coupled with rotary spring and damper assembly and electrical motor characteristics are taken into account for their parameter selections. We then simulate results for different design values of gear ratio, spring constant, and rotary damper constant meeting the power transfer requirements of DC micro-motor and inertial loads of phalanges. We then tune a PID controller for optimal values and check its performance against variations in parameters. Our results demonstrate the applicability of the modeling and design scheme of a prosthetic finger for application in anthropomorphic hands. © 2023 IEEE.

关键词： Degrees of freedom (mechanics)

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Lightweight, High-Entropy TRNG Using Quad Cross-Coupled Feedback Architecture

Lightweight, High-Entropy TRNG Using Quad Cross-Coupled Feed...

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2025 IEEE SoutheastCon, SoutheastCon 2025

作者： Williams, Shelby Kirtonia, Prosen Akter, Sonia Khalil, Kasem Bayoumi, Magdy Univ. of Mississippi Department of Electrical and Computer Engineering OxfordMS38677 United States Univ. of Louisiana at Lafayette Center for Advanced Computer Studies LafayetteLA70504 United States Univ. of Louisiana at Lafayette Dept. of Electrical and Computer Engineering LafayetteLA70504 United States

ISBN: (纸本)9798331504847

This paper presents a lightweight, high-entropy true random number generator architecture featuring an innovative quad cross-coupled feedback mechanism to enhance randomness. The primary goal is to develop an efficient and secure true random number generator that addresses the growing demand for reliable random number generation in cryptographic and security-critical applications. The motivation stems from the need to improve entropy, reduce resource utilization, and ensure robustness across varying technologies. With the intention of achieving near-perfect randomness, the Quad-Input Oscillating Circuit module integrates self-coupled, jitter-inducing ring oscillators with cross-coupled feedback loops to induce metastability. Comprehensive evaluations confirm a Shannon entropy of 0.999818, a minimum entropy of 0.977257, and a collision entropy of 0.999636. The design was synthesized using Synopsys Design Compiler at 45 nm, 32 nm, and 14 nm, achieving a maximum frequency of 6.7 GHz, power consumption as low as 72 μW, and area utilization of 24 μ m2 at 14 nm. Rigorous validation through multiple statistical test suites, including the AIS-31, Autocorrelation, Deviation, Diehard, the National Institute of Standards and Technologies SP800-22 and SP800-90B, and TestU01, confirms its efficiency and reliability. Real random bits were implemented as oscilloscope-viewable signals on the Cyclone V Field Programmable Gate Array developed by Altera, representing a significant advancement in secure random number generation technologies. © 2025 IEEE.

关键词： Field programmable gate arrays (FPGA)

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RAPUF: A Novel Integration of Reversible Logic and Arbiter Physical Unclonable Functions for Enhancing IoT Security

RAPUF: A Novel Integration of Reversible Logic and Arbiter P...

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2024 International Conference on Artificial Intelligence, computer, Data Sciences, and Applications, ACDSA 2024

作者： Rizk, Dominick Rizk, Frederic Rizk, Patrick Rizk, Rodrigue The Catholic University of America Dept. of Electrical Engineering and Computer Science WashingtonDC United States University of Louisiana at Lafayette The Center for Advanced Computer Studies LafayetteLA United States University of Quebec at Trois-Rivières Dept. of Mechanical Engineering Drummondville Canada University of South Dakota Dept. of Computer Science VermillionSD United States

ISBN: (纸本)9798350394528

The Internet of Things (IoT) devices' proliferation underscores the critical importance of fortifying nanoscale circuit security against evolving cyber threats. This paper introduces an unprecedented paradigm to enhance IoT security through the synergistic integration of reversible logic gates and Arbiter Physical Unclonable Functions (APUFs). Reversible logic, known for its theoretical efficiency and energy conservation, is coupled with APUFs, leveraging their unique ability to exploit nanoscale manufacturing variations for robust hardware security. The novel integration is specifically tailored to address the distinctive security challenges prevalent in IoT ecosystems. The proposed methodology encompasses designing and implementing a secure nanoscale circuit system, tailored to the resource constraints of IoT devices. Through an exhaustive literature review, we establish the significance of reversible logic and APUFs in the broader context of nanoscale circuit design and IoT security. The experimental results demonstrate not only the feasibility of the integrated approach but also its effectiveness in fortifying IoT devices against unauthorized access and data breaches. This research contributes a fresh perspective to the field of IoT security, presenting a novel solution that combines energy-efficient reversible logic with the intrinsic security features of APUFs. The outcomes of this work hold promise for advancing the security paradigm of IoT devices ensuring their resilience against emerging threats in the ever-evolving landscape of cybersecurity and contributing significantly to the evolving field of quantum-enhanced IoT security. © 2024 IEEE.

关键词： Internet of things

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Chirality-Driven Analysis of CNFET 5T Spiking Neuron for Ultra-Low Energy Computing

Chirality-Driven Analysis of CNFET 5T Spiking Neuron for Ult...

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2025 IEEE SoutheastCon, SoutheastCon 2025

作者： Kirtonia, Prosen Williams, Shelby Khalil, Kasem Bayoumi, Magdy Univ. of Mississippi Department of Electrical and Computer Engineering OxfordMS38677 United States University of Louisiana at Lafayette Dept. of Electrical and Computer Engr. LafayetteLA70504 United States Center for Advanced Computer Studies Univ. of Louisiana at Lafayette LafayetteLA70504 United States

ISBN: (纸本)9798331504847

Research into suitable alternatives to silicon has significantly expanded over the last decade due to the diminishing returns of Moore's law. Spiking Neural Networks (SNNs) offer the crucial advantage of low-power computing among Neural Networks (NNs). In this work, we propose an ultra-low energy, high-frequency spiking neuron circuit utilizing Carbon-Nanotube Field Effect Transistors (CNFETs). The key idea behind this work is to design a neuron with reduced energy consumption to enhance the fundamental advantage of SNNs, leveraging carbon instead of silicon, and to analyze performance by varying the chirality vector of CNFETs. Furthermore, we compare the computational outcomes of the circuit for CNFETs and CMOS. The CNFET neuron demonstrates 34.6 times faster performance than CMOS while consuming 5.25 times less energy. However, chirality vector variation is inversely proportional to the transistor's threshold voltage. Therefore, the peak spiking frequency is achieved at 80.32 GHz while consuming only 251.95 aJ per spike, using low-threshold voltage CNFETs with chirality number, m=22. Overall, the design and performance evaluation across several CNFET characteristics, compared with CMOS, highlight the potential of carbon as a promising alternative to silicon for SNNs, aligning with their key advantages. © 2025 IEEE.

关键词： CMOS integrated circuits

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Digital-Twin Architecture of a Spiking Neuron using Carbon Nanotube Field Effect Transistors

Digital-Twin Architecture of a Spiking Neuron using Carbon N...

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2024 IEEE International Performance, Computing, and Communications Conference, IPCCC 2024

作者： Williams, Shelby Kirtonia, Prosen Khalil, Kasem Bayoumi, Magdy Univ. of Louisiana at Lafayette Center for Advanced Computer Studies LafayetteLA70504 United States University of Louisiana at Lafayette Dept. of Electrical and Computer Engr. LafayetteLA70504 United States Univ. of Mississippi Department of Electrical and Computer Engineering OxfordMS38677 United States Assiut University Department of Electrical Engineering Assiut71515 Egypt

ISBN: (纸本)9798350367942

The rapid advancements in nanotechnology and neuromorphic engineering have paved the way for developing high-performance computational models that mimic biological neural networks. This paper presents a novel digital-twin architecture for a spiking neuron, leveraging the exceptional properties of Carbon Nanotube Field Effect Transistors (CNFETs). The proposed architecture aims to emulate the dynamic behavior of biological neurons with high fidelity, providing a robust platform for simulation and analysis. By integrating CNFETs, we achieve significant improvements in lowest-energy usage and highest-spiking frequency, compared to traditional silicon-based technologies. Furthermore, the digital twin not only replicates the electrical characteristics of a spiking neuron but also facilitates advanced functionalities such as adaptive learning, fault tolerance, and self-optimization. Experimental results demonstrate the potential of CNFET-based neurons in enhancing the performance of neuromorphic systems, offering promising applications in artificial intelligence, cognitive computing, and complex system modeling. Integrating digital twin technology with CNFETs allows for precise control and manipulation of spiking behavior, enabling the development of more sophisticated and efficient neural models. This research underscores the transformative impact of combining digital twin technology with cutting-edge nanomaterials, setting a new benchmark for future explorations in the field. The findings highlight the importance of continued research and development in this area, as it holds the promise of revolutionizing the way we design and implement neuromorphic systems, pushing the boundaries of what is possible in artificial intelligence and beyond. © 2024 IEEE.

关键词： Carbon nanotube field effect transistors

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Aloe Vera Tissue Modeling and Parameter Identification Using Meta-heuristic Optimization Algorithm

Aloe Vera Tissue Modeling and Parameter Identification Using...

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2023 International Conference on Microelectronics, ICM 2023

作者： Ghoneim, Mohamed S. Fathi, Dalia A. Said, Lobna A. Madian, Ahmed H. Bayoumi, Magdy A. University of Louisiana at Lafayette Department of Electrical and Computer Engineering LA United States Cairo Egypt Ncrrt Egyptian Atomic Energy Radiation Engineering Dept. Cairo Egypt University of Louisiana Center for Advanced Computer Studies LafayetteLA United States

ISBN: (纸本)9798350380828

The agricultural industry's use of non-invasive bioimpedance monitoring methods is expanding quickly. These measured impedance fluctuations reflect imperceptible biophysical and biochemical changes in living and non-living tissues. Bioimpedance circuit modeling is a valuable method for fitting the measured impedance in biology and medicine. A study on two samples of Aloe Vera leaves is conducted to identify the best model representing Aloe Vera leaves, and two different interelectrode spacing distances are used to measure each sample. An electrochemical station (SP150) is used to detect bio-impedance at frequencies between 80 Hz and 200 kHz. The effectiveness of the employed models is evaluated by fitting them to the measured data. Among all models used, the medical plant stem and simplified plant stem models show the best results for all inter-electrode spacing distances. © 2023 IEEE.

关键词： Timing circuits

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Design and Analysis of Spoke-Type Inverted V Shape IPMSM with Concentrated Winding for EV Applications

Design and Analysis of Spoke-Type Inverted V Shape IPMSM wit...

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Emerging Power Technologies (ICEPT), International Conference on

作者： Salar Ahmad Khalil Muhammad Yousif Faisal Khan Urooj Jadoon US-Pakistan Center of Advanced Studies in Energy (USPCASE) National University of Sciences and Technology Islamabad Islamabad Pakistan Department of Electrical and Computer Engineering COMSATS University Islamabad Abbottabad Pakistan

ISBN: (数字)9798331536657

ISBN: (纸本)9798331536664

The present paper outlines a novel spoke-type interior permanent magnet synchronous (IPMS) machine topology, featuring four poles and twelve slots, as well as an inverted V-type asymmetric barrier. The design employs concentrated winding techniques to enhance efficiency through the reduction of copper losses. The proposed design's stack length has been reduced by approximately half of the base design thus lowering the overall weight while retaining a constant volume of permanent magnet material making the proposed topology preferable for electric vehicle (EV) applications. The performance of the recommended layout will be compared to a standard base model, with torque density serving as the key comparative parameter, owing to the lower stack length. Results indicate that the proposed design yields high torque density, excellent torque pulsation suppression, cost reductions, and reduced losses as well as simpler deployment owing to its lower weight. The design is well-suited for applications with thermal as well as spatial constraints owing to its shorter stack length as well as lower magnetic field density, which reduces core losses and heat generation. Furthermore, its less weight makes installation and maintenance processes easier.

关键词： Heating systems Torque Costs Windings Core loss Electric vehicles Permanent magnets Topology Magnetic fields Copper

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Modeling and Analysis of Design Parameters Selection for Biomechanical Movement of Prosthetic Finger

Modeling and Analysis of Design Parameters Selection for Bio...

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IEEE International Conference on Multi Topic

作者： Fawaz Mahmood Mughal Asif Mahmood Mughal Dept. of Mechatronics Engineering UET Lahore Pakistan Center for Advanced Studies in Engineering Islamabad Pakistan

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