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Low Routing Complexity Multiframe Pipelined LDPC Decoder Based on a Novel Pseudo Marginalized Min-Sum Algorithm for High Throughput Applications

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IEEE Transactions on Very Large Scale Integration (VLSI) Systems 2023年第1期31卷 29-42页

作者： Davila, HenryLopez Wu, Tsung-Han Jou, Shyh-Jye Jerry Chen, Sau-Gee Tsai, Pei-Yun National Chiao Tung University Eecs International Graduate Program Hsinchu30010 Taiwan National Yang Ming Chiao Tung University Institute of Electronics Hsinchu30010 Taiwan National Central University Electrical Engineering Department Taoyuan32001 Taiwan

This article presents a high throughput and low routing complexity multiframe pipelined low-density parity check (LDPC) decoder design based on a novel pseudo marginalized min-sum (PMMS) message passing approach. The proposed PMMS approach reduces the required number of interconnections in the routing network allowing the design to be implemented with reduced hardware complexity, low power consumption and high throughput capability while supporting multiple coding rates with short and long codewords as defined in many application standards. Implementation results for IEEE802.11ad/ay standards show that the proposed design satisfies a target bit error rate (BER) requirement of 3× 10-7 with 64 quadrature amp mod (QAM) targeting high throughput applications. Furthermore, the proposed design is able to achieve a throughput of 62 and 101.8 Gb/s with two pipelining stages under 28-nm CMOS and 16-nm FinFET CMOS process, respectively. As compared to the existing NMS algorithm, the proposed design based on the PMMS approach reduces the number of wires in the routing network by 45.5%, and the wirelength of the overall decoder by 17%. The area and power consumption are also reduced by 9.4% and 12%, respectively, as compared to the conventional normalized min-sum (NMS) algorithm. © 1993-2012 IEEE.

关键词： Message passing

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Exploring 3D Reconstruction with Drone Images: Advances and Challenges in Urban Environments 50

Exploring 3D Reconstruction with Drone Images: Advances and ...

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50th Annual Conference of the IEEE Industrial electronics Society, IECON 2024

作者： Miranda Baldivieso, Thiago João da Silva Batista, Taise Grazielle Chagas, Fabio Suim Rodrigues Velho, Luiz Carlos Pacheco Ferreira Rosa, Paulo Fernando Defense Engineering Graduate Program Military Institute of Engineering Rio de Janeiro Brazil State Institute of the Environment Inea RJ Rio de Janeiro Brazil Department of Science and Industry systems University of South-Eastern Norway Kongsberg Norway Department of Computer Graphics Institute for Pure and Applied Mathematics Rio de Janeiro Brazil Electrical Engineering Graduate Program Military Institute of Engineering Rio de Janeiro Brazil

ISBN: (纸本)9781665464543

This working-in-progress paper aims to present a three-dimensional reconstruction using aerial images in different environments. The experiments were conducted with aircraft in both external and internal settings, starting with image acquisition, followed by the application of specific photogrammetry software-both commercial and open-source-and concluding with a qualitative evaluation of the results. © 2024 IEEE.

关键词： Aerial photography

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A Bridge-Based Compression Algorithm for Topological Quantum Circuits

A Bridge-Based Compression Algorithm for Topological Quantum...

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作者： Tseng, Wei-Hsiang Hsu, Chen-Hao Lin, Wan-Hsuan Chang, Yao-Wen Graduate Institute of Electronics Engineering National Taiwan University Taipei10617 Taiwan National Taiwan University Department of Electrical Engineering Taipei10617 Taiwan National Taiwan University Department of Electrical Engineering Graduate Institute of Electronics Engineering Taipei10617 Taiwan

Topological quantum error correction (TQEC) is promising for scalable fault-tolerant quantum computation. The required resource of a TQEC circuit can be modeled as its space-time volume of a three-dimensional geometric description. Implementing a quantum algorithm with a reasonable physical qubit number and computation time is challenging for large-scale complex problems. Therefore, it is desirable to minimize the space-time volume for large-scale TQEC circuits. Previous work proposed bridge compression, which can significantly compress a TQEC circuit, but it was performed manually. This article presents the first automated tool that can perform bridge compression on a large-scale TQEC circuit. Our proposed algorithm applies the bridge compression technique to compactify TQEC circuits with modularization. Besides, we offer a time-ordering-aware 2.5-D placement for compacting TQEC circuits and satisfying time-ordered measurement constraints. On the other hand, we suggest friend net-aware routing to effectively reduce the required routing resource under topological deformation. Compared with the state-of-the-art work, experimental results show that our proposed algorithm can averagely reduce space-time volumes by 84%. © 1982-2012 IEEE.

关键词： Bridge circuits

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Dual-Aptamer Drift Canceling Techniques to Improve Long-Term Stability of Real-Time Structure-Switching Aptasensors

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ACS Sensors 2023年第9期8卷 3380-3388页

作者： Tsai, Ya-Chen Weng, Wei-Yang Yeh, Yu-Tung Chien, Jun-Chau Department of Electrical Engineering National Taiwan University No. 1 Section 4 Roosevelt Rd Taipei City10617 Taiwan Graduate Institute of Electronics Engineering National Taiwan University No. 1 Section 4 Roosevelt Rd Taipei City10617 Taiwan

This paper presents a dual-aptamer scheme to mitigate signal drifts caused by structure-switching aptamers during long-term monitoring. Electrochemical aptamer-based (E-AB) biosensors have recently shown great potential for continuous in vivo monitoring. However, the accuracy of detection is often limited by signaling drifts. Traditional approaches rely on kinetic differential measurements (KDM) coupled with square-wave voltammetry to eliminate these drifts. Yet, we have discovered that KDM does not apply universally to all aptamers, as their responses at different SWV frequencies heavily rely on their structure-switching characteristics and the electron transfer (ET) kinetics of the redox reporters. In light of this, we propose a "dual-aptamer" scheme that utilizes two aptamers, each responding differently to the same target molecule to cancel out drift. These paired aptamers are identified through (1) screening from an existing pool of aptamers and (2) engineering the signaling behavior of the redox reporters. We demonstrate the differential signaling of the aptamer pair in the presence of ampicillin and ATP molecules and show that the pair exhibits similar drifts in undiluted goat serum. By implementing drift cancelation, sensor drift is reduced by a factor of 370. Additionally, the differential signaling enables an increased recording throughput by leveraging differential readout electronics. The authors believe that the proposed technique holds significant benefits for long-term in vivo monitoring. © 2023 American Chemical Society.

关键词： Signaling

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Optimal BESS Scheduling with Real-Time Assessment for Time-of-Use Customers Using Particle Swarm Optimization

Optimal BESS Scheduling with Real-Time Assessment for Time-o...

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Power, Energy and electrical engineering (CPEEE), International Conference on

作者： Alioune Diouf Yasuhiro Noro Electrical Engineering and Electronics Program Kogakuin University Tokyo Japan Department of Electrical and Electronics Engineering Kogakuin University Tokyo Japan

ISBN: (数字)9798331520090

ISBN: (纸本)9798331520106

This study presents an optimal day-ahead operational scheduling strategy for a battery energy storage system(BESS) to achieve savings for a time-of-use(TOU) customer. This optimization problem is solved using a Particle Swarm Optimization(PSO) algorithm with an evaluation of its sensitivity to photovoltaic(PV) and load forecast errors. A new initialization process based on two non-optimized algorithms is proposed to enhance PSO convergence during the optimal scheduling process. By charging the BESS with surplus PV generation or during off-peak periods and discharging it during peak times or when contracted demand limits are exceeded, an initial particle population is provided as an input to the PSO. The state of charge(SOC) is maintained within the normal range by stopping the BESS output selected by the PSO as needed. The PSO's performance is assessed in real-time operation using historical PV and load data. The proposed method is simulated using MATLAB software to verify its effectiveness showing 17% and 10% cost saving over one day and one month, respectively. Additionally, the PSO demonstrates robust performance for forecast error under 10%.

关键词： Schedules Costs Sensitivity Electricity Software algorithms Optimal scheduling Real-time systems Software Scheduling Particle swarm optimization

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Extremely-High Pixel Density Color Conversion Micro-LED Displays with High Efficiency and Wide Color Gamut Coverage 27

Extremely-High Pixel Density Color Conversion Micro-LED Disp...

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Organic and Hybrid Light Emitting Materials and Devices XXVII 2023

作者： Lin, Jian-Hong Cheng, Yen-Chia Chen, Shan-Yu Tsai, Chih-Yuan Wu, Chen-Hsun Chen, Chi-Shiang Lin, Ching-Fuh Graduate Institute of Photonics and Optoelectronics National Taiwan University Taipei Taiwan Graduate Institute of Electronics Engineering National Taiwan University Taipei Taiwan Department of Electrical Engineering National Taiwan University Taipei Taiwan

ISBN: (纸本)9781510665323

With the vigorous development of display technology, micro light-emitting diode (Micro-LED) display has become the most potential technology in the future. Its characteristics include high resolution, long life, wide color gamut, high contrast, fast response, small pixel size and low power consumption. The technical bottleneck of Micro-LED display is the mass transfer, so we use semiconductor lithography process to replace it for much lower cost and higher production speed. We propose color conversion technology to achieve higher efficiency and light intensity than mass transfer. In this study, we used a waterproof and viscous organic material Polyvinyl Butyral Resin (PVB) as the main material to synthesize rare-earth-free color conversion luminescent materials, which contain 4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran (DCJTB) for red light and 3-(2-Benzothiazolyl)-7-(diethylamino) coumarin (Coumarin 6) for green light with very high quantum yield (~90%). Through semiconductor process technology, we have realized the fabrication of extremely small size 4μm × 4μm display arrays. The single-color pixel density can reach 5080 pixels per inch (PPI), and the full-color pixel density reaches up to 2540 PPI, with a display color gamut covering approximately 92.3% of the digital cinema initiatives - protocol 3 (DCI-P3) standard. This research achievement offers a promising technique for manufacturing the next generation of Micro-LED displays with extremely high PPI. These advancements in display technology bring tremendous potential for various applications, ranging from consumer electronics products to augmented reality and beyond. © 2023 SPIE · 0277-786X ·

关键词： Quantum yield

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CRISP - DM Process in Smart Building Management 11

CRISP - DM Process in Smart Building Management

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11th International Conference on electrical and electronics engineering, ICEEE 2024

作者： Dursun, Mahir Sabyrzhan, Moldir Gazi University Faculty of Technology Dept. of Electrical and Electronics Engineering Ankara Turkey Graduate School of Informatics Gazi University Department of Computer Science Ankara Turkey

ISBN: (纸本)9798350362541

Smart Buildings are buildings that integrate and combine intelligence, management, control, materials, and construction as a single system to meet all the needs of the building, such as comfort, energy efficiency, and durability. In universities, laboratories are used less frequently than other facilities and classrooms. Courses and students may change in the same classroom, and the period of use of such classrooms is much more extended than in laboratories. However, classrooms may only be used for classes during long breaks or for short periods of non-use between exams. In addition, there is no provision for when the heating system will start to heat up before classes or when it will be turned off after classes. By planning heating and lightning, energy and costs will be saved. This paper presents data acquisition methods for preparing a dataset to create a machine learning (ML) model to save energy loss in university laboratories. The developed model will predict energy consumption in classrooms and laboratories based on weather conditions. The study is being conducted in two stages. The first stage describes how to collect data using electronic devices such as Internet of Things (IoT) controllers of Smart Building Management Systems. The second stage gave possibilities for data analysis and preparation using the phases of the Cross-Industry Standard Process for Data Mining (CRISP-DM). © 2024 IEEE.

关键词： Information management

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Measuring Public Wi-Fi Security Awareness via Captive Portal Connections Using a Microcontroller

Measuring Public Wi-Fi Security Awareness via Captive Portal...

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Workshop on Communication Networks and Power Systems (WCNPS)

作者： Hyago Santana Mariano Daniel Chaves Café Department of Electrical Engineering Professional Graduate Program in Electrical Engineering - PPEE University of Brasília (UnB)

ISBN: (数字)9798331507152

ISBN: (纸本)9798331507169

This article proposes the implementation of a captive portal system on a microcontroller to assess users’ maturity regarding the safe use of public Wi-Fi networks. The use of public Wi-Fi networks has become increasingly common in places like cafes, airports, shopping centers, and hotels. However, many users are unaware of the risks associated with using these unsecured networks, such as personal information theft, privacy invasion, and cyberattacks. This study aims to utilize a microcontroller to generate a signal mimicking a known public network, where, upon user login, an educational authentication portal will be displayed. This portal will not only provide information about security risks but also evaluate the users’ maturity level in adopting safe practices on public Wi-Fi networks, offering guidelines on how to protect their data and devices.

关键词： Privacy Power measurement Microcontrollers Conferences Power systems Security Computer crime Wireless fidelity Portals Guidelines

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A Zero Harmonic Distortion Master Converter for Medium Voltage Microgrids 14

A Zero Harmonic Distortion Master Converter for Medium Volta...

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14th Annual IEEE Applied Power electronics Conference and Exposition, APEC 2025

作者： Ramos, Gabriel V. De L. Brandão, Dener A. Parreiras, Thiago M. Brandao, Danilo I. De J. C.Filho, Braz Graduate Program in Electrical Engineering Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 MG Belo Horizonte31270-901 Brazil Centro Federal de Educação Tecnológica de Minas Gerais Department of Electrical Engineering Belo Horizonte Brazil Universidade Federal de Minas Gerais Department of Electrical Engineering Belo Horizonte Brazil

ISBN: (纸本)9798331516116

This paper proposes the Zero Harmonic Distortion Converter (ZHD) as a master converter (MC) for medium voltage microgrids, delivering sinusoidal waveforms in both grid-connected and islanded mode without sinusoidal capacitive filtering elements. The ZHD MC ensures seamless transitions between modes using a simple control approach that eliminates the need off a voltage closed-loop control for grid-connected, islanded, and transition modes, using only a current closed-loop control for grid-connected operation. Simulation and hardware-in-the-loop results show the performance of the ZHD MC converter. © 2025 IEEE.

关键词： Closed loop control systems

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A Comparative Analysis of Terminal and Second Order Sliding Mode Controllers for Full Bridge Single Phase Inverters 50

A Comparative Analysis of Terminal and Second Order Sliding ...

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50th Annual Conference of the IEEE Industrial electronics Society, IECON 2024

作者： Ayik, Samet Demirbas, Sevki Güler, Naki Fesli, Ugur Department of Electrical and Electronics Engineering Graduate School of Natural and Applied Sciences Gazi University Ankara Turkey Electrical and Electronics Engineering Department Gazi University Ankara Turkey Renewable Energy and Smart Grid Application and Research Center Gazi University Ankara Turkey Electronic and Automation Department Technical Sciences Vocational School Gazi University Ankara Turkey

ISBN: (纸本)9781665464543

This study presents a comprehensive analysis of Terminal Sliding Mode Control (TSMC) and Super Twisting Sliding Mode Control (SOSMC), in the context of full-bridge single-phase inverters. The controllers are designed to output current control of the single-phase inverter. Simulation studies are performed on MATLAB/Simulink platform to investigate the dynamic responses, steady-state error, ripple magnitude and total harmonic distortion (THD). The results indicate that TSMC offers faster response times but suffers from significant undershoot and higher steady-state errors. Conversely, SOSMC demonstrates superior performance with lower steady-state error, reduced ripple and significantly less harmonic distortion. These findings highlight the relative advantages and disadvantages of each control strategy, providing valuable insights for their application in both academic research and industrial practice. © 2024 IEEE.

关键词： MATLAB

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