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International Conference on Network and Service Management

作者： Casper Haems Jeroen van der Hooft Hannes Mareen Peter Steenkiste Glenn Van Wallendael Tim Wauters Filip De Turck Department of Information Technology Ghent University - Imec Ghent Belgium Department of Electronics and Information Systems Ghent University - Imec Ghent Belgium Departments of Computer Science and Electrical and Computer Engineering Carnegie Mellon University Pittsburg United States of America

ISBN: (数字)9783903176669

ISBN: (纸本)9798331505158

In response to the growing demand for low-latency video streaming, this paper presents a demonstration of a hybrid unicast-broadcast video delivery system that combines 5G terrestrial broadcasting with over-the-top (OTT) streaming methods. The demonstration features a scalable setup with an interactive dashboard, allowing users to experiment with various configurations and observe key metrics such as bandwidth usage, packet loss, buffer size, and live latency in real-time. Key techniques include Low-Latency DASH (LL-DASH) for HTTP Adaptive Streaming (HAS), packet recovery (PR) and Forward Error Correction (FEC) for reliability, Temporal Layer Injection (TLI) for enhanced quality, and Common Media Application Format (CMAF) with Chunked Transfer Encoding (CTE) for reduced latency. The demonstration shows that this scalable hybrid approach can effectively reduce unicast bandwidth to nearly 0 Mb/s in scenarios without packet loss on the broadcast network, and achieve similar bandwidth reductions in lossy broadcast networks with appropriate Forward Error Correction (FEC) settings, while maintaining a live latency lower than 1 second. These results demonstrate the system's potential for optimizing multimedia delivery, significantly reducing unicast bandwidth while maintaining low-latency streaming.

关键词： Over-the-top media services Unicast 5G mobile communication Packet loss Bandwidth Forward error correction Real-time systems Multimedia communication Low latency communication Video recording

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Optimal Sizing of Isolated Renewable Power systems with Ammonia Synthesis: Model and Solution Approach

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arXiv 2023年

作者： Yu, Zhipeng Lin, Jin Liu, Feng Li, Jiarong Zhao, Yuxuan Song, Yonghua The State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing100087 China Sichuan Energy Internet Reasearch Institute Tsinghua University Chengdu610213 China The Department of Electrical and Computer Engineering University of Macau 999078 China The Department of Electrical Engineering Tsinghua University Beijing100087 China

Isolated renewable power to ammonia (IRePtA) has been recognized as a promising way to decarbonize the chemical industry. Optimal sizing of the renewable power system is significant to improve the techno-economic of IRePtA since the investment of power sources exceeds 80% of the total investment. However, multi-timescale electricity, hydrogen, and ammonia storages, minimum power supply for system safety, and the multiyear uncertainty of renewable generation lead to difficulties in planning. To address the issues above, an IGDT-MILFP model is proposed. First, the levelized cost of ammonia (LCOA) is directly formulated as the objective, rendering a mixed integer linear fractional programming (MILFP) problem. Information gap decision theory (IGDT) is utilized to handle the multiyear uncertainty of renewable generation. Second, a combined Charnes-Cooper (C&C) transformation and Branch-and-Bound (B&B) method is proposed to efficiently solve the large-scale IGDT-MILFP model, giving robust and opportunistic planning results. Then, Markov Chain Monte Carlo (MCMC) sampling-based posteriori analysis is leveraged to quantify the long-run performance. Finally, a real-life system in Inner Mongolia, China, is studied. The results indicate that the proposed methods could reduce the computational burden by orders of magnitude for solving a large-scale MILFP problem. Moreover, the proposed IGDT-MILFP model is necessary and accurate to obtain an optimal capacity allocation with the lowest expected LCOA (3610 RMB/t) in long-run simulations. Copyright © 2023, The Authors. All rights reserved.

关键词： Ammonia

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Time Controlled Pre-Emphasis Circuit for Broadband Frequency Operation up to 3.6 Gbps

Time Controlled Pre-Emphasis Circuit for Broadband Frequency...

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International SoC Design Conference, ISOCC

作者： JunHa Lee Kang-Yoon Lee Department of Semiconductor and Display Engineering Sungkyunkwan University Suwon Republic of Korea Memory Division Samsung Electronics Co. Ltd Korea Department of Electrical and Computer Engineering Sungkyunkwan University Suwon Republic of Korea

This paper presents a time-controlled pre-emphasis circuit for memory interfaces. At 3.6 Gbps high frequency operation, the eye opening at 1 unit interval (UI) is as small as 50.53%, so to maximize this, adjust the pre-emphasized circuit code to maximize the operating time of the pre-emphasis. However, at a low frequency of 1.2 Gbps, the eye size is large enough at 88% of the 1 UI. This minimizes the pre-emphasizing circuit code to reduce channel power consumption by 5% compared to always operating by pre-emphasizing only high-frequency areas where the signal is transferred or turning off the pre-emphasizing circuit. The proposed design implements in 28 nm CMOS process with 1.2 V supply voltage. The total prototype chip occupies 0.00477 mm 2 .

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Fuzzy Object Ambiguity Determination and Human Attention Assessment for Domestic Service Robots

Fuzzy Object Ambiguity Determination and Human Attention Ass...

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International Conference on Soft Computing and Machine Intelligence (ISCMI)

作者： Kevin Fan Melanie Jouaiti Kerstin Dautenhahn Chrystopher L. Nehaniv Department of Electrical & Computer Engineering and Systems Design Engineering Social and Intelligent Robotics Research Laboratory (SIRRL) University of Waterloo Waterloo Canada Departments of Electrical & Computer Engineering and Systems Design Engineering Social and Intelligent Robotics Research Laboratory (SIRRL) University of Waterloo Waterloo Canada

Domestic service robots have the promising potential of bringing significant services to the general population, and more importantly, successful applications of universal domestic service robots can potentially help mitigate critical societal issues such as senior care. In order to do so, domestic service robots need to integrate seamlessly into home environments. However, home environments are dynamic, complex and filled with personal items. Therefore, ambiguity can quickly arise for robots operating in such rich environments. In this paper, we propose an object ambiguity determination system that can determine the level of ambiguity in robot object selection tasks with fuzzy logic data integration. Additionally, we propose a functional human attention assessment system with fuzzy logic that enables the robot to determine user attention before committing to general disambiguation processes. Our preliminary results show that the proposed fuzzy logic inference systems can reliably estimate the robot object selection task ambiguity from object confidence level and the number of potential target objects that satisfy the user's command. Furthermore, fuzzy inference is applied to decide human eye gaze direction robustly. These subsystems can be utilized in the context of human-robot interaction to guide the robot when to seek feedback from a human partner in order to disambiguate reference in domestic service tasks. The source code of all proposed systems is available publicly on GitHub. 1

关键词： Fuzzy logic Service robots Source coding Sociology Human-robot interaction Data integration Reliability

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All-silicon quantum light source by embedding an artificial atom in a nanophotonic cavity

All-silicon quantum light source by embedding an artificial ...

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Frontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023

作者： Zhiyenbayev, Yertay Redjem, Walid Qarony, Wayesh Ivanov, Vsevolod Papapanos, Christos Liu, Wei Jhuria, Kaushalya Al Balushi, Zakaria Dhuey, Scott Schwartzberg, Adam Tan, Liang Z. Schenkel, Thomas Kanté, Boubacar Department of Electrical Engineering and Computer Sciences University of California Berkeley BerkeleyCA94720 United States Accelerator Technology and Applied Physics Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Department of Materials Science and Engineering University of California Berkeley BerkeleyCA94720 United States Materials Sciences Division Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Molecular Foundry Lawrence Berkeley National Laboratory BerkeleyCA94720 United States

We demonstrate the first all-silicon quantum light source, by embedding a single silicon-based defect within a silicon nanophotonic cavity, resulting in a 30-fold enhancement of luminescence and an 8-fold acceleration... 详细信息

ISBN: (纸本)9781957171296

关键词： Electron beam lithography Photonic crystal cavities Photonic crystals Quantum light sources Ring resonators Scanning electron microscopy

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Wireless,multimodal sensors for continuous measurement of pressure,temperature,and hydration of patients in wheelchair

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npj Flexible Electronics 2023年第1期7卷 479-493页

作者： Seokjoo Cho Hyeonseok Han Hyunwoo Park Sung-Uk Lee Jae-Hwan Kim Sung Woo Jeon Mengqiu Wang Raudel Avila Zhaoqian Xi Kabseok Ko Minsu Park Jungyup Lee Myungwoo Choi Je-Sang Lee Weon Gi Min Byeong-Ju Lee Soyeong Lee Jungrak Choi Jimin Gu Jaeho Park Min Seong Kim Junseong Ahn Osman Gul Chankyu Han Gihun Lee Seunghwan Kim Kyuyoung Kim Jeonghyun Kim Chang-Mo Kang Jahyun Koo Sung Soo Kwak Sungbong Kim Dong Yun Choi Seokwoo Jeon Hyung Jin Sung Yong Bae Park Minkyu Je Young Tae Cho Yong Suk Oh Inkyu Park Department of Mechanical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea School of Electrical Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Advanced 3D Printing Technology Development Division Korea Atomic Energy Research InstituteDaejeon 34057Republic of Korea Department of Electrical and Computer Engineering University of Illinois at Urbana-ChampaignUrbanaIL 61801USA State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering MechanicsDalian University of TechnologyDalian 116023P.R.China Department of Mechanical Engineering Northwestern UniversityEvanstonIL 60208USA DUT-BSU Joint Institute Dalian University of TechnologyDalian 116023China Ningbo Institute of Dalian University of Technology Ningbo 315016China Department of Electronics Engineering Kangwon National UniversityChuncheon 24341Republic of Korea Querrey-Simpson Institute for Bioelectronics Northwestern UniversityEvanstonIL 60208USA Sibel Health Inc NilesIL 60714USA Department of Materials Science and Engineering KAIST Institute for The Nanocentury(KINC)Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Rehabilitation Medicine Gimhae Hansol Rehabilitation&Convalescent HospitalGimhae 50924Republic of Korea Department of planning and development Gimhae Hansol Rehabilitation&Convalescent HospitalGimhae 50924Republic of Korea Department of rehabilitation medicine Pusan national university hospitalBusan 49241Republic of Korea Department of AI Convergence Network Ajou UniversitySuwon 16499Republic of Korea Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897Republic of Korea Korea Photonics Technology Institute Gwangju 61007Republic of Korea School of Biomedical Engineering Korea UniversitySeoul 02841Republic of Korea Interdisciplinary Program in Precision Public Health Korea UniversitySeoul 02841Republic of Korea Center

Individuals who are unable to walk independently spend most of the day in a *** population is at high risk for developing pressure injuries caused by ***,early diagnosis and prevention of these injuries still remain ***,we introduce battery-free,wireless,multimodal sensors and a movable system for continuous measurement of pressure,temperature,and hydration at skin *** device design includes a crack-activated pressure sensor with nanoscale encapsulations for enhanced sensitivity,a temperature sensor for measuring skin temperature,and a galvanic skin response sensor for measuring skin hydration *** movable system enables power harvesting,and data communication to multiple wireless devices mounted at skin-cushion interfaces of wheelchair users over full body *** evaluations and numerical simulations of the devices,together with clinical trials for wheelchair patients,demonstrate the feasibility and stability of the sensor system for preventing pressure injuries caused by sitting.

关键词： injuries modal mounted

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Development of Interference Mitigation Technique for Low Power Wide Area Network 5

Development of Interference Mitigation Technique for Low Pow...

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5th International Conference on Information Technology for Education and Development, ITED 2022

作者： Musa, Abdulwaheed Adio, Mojeed Faruk, Nasir Kwara State University Department of Electrical and Computer Engineering Malete Nigeria Institute for Intelligent Systems University of Johannesburg South Africa Sule Lamido University Directorate of Information and Communication Technology Kafin Hausa Jigawa State Nigeria

ISBN: (纸本)9781509064229

Evolution of technology has been rapid in recent years and with the wide acceptance of 5G/6G networks, Internet of Things (IoT), Machine Learning (ML), blockchain technologies, there must be a methodology of interconnecting them across large proximity or regions to centralized servers. Existing mobile technologies are not suitable to ensure communications between these devices, and this has necessitated the need to create Low Power Wide Area Network (LPWAN). The LPWAN, assuming a set of networks, is considered to have subsets including Sigfox, LoRaWAN, NB-IoT and others. For any real system, there is always collision between packets upon arrival, thereby subtracting and extracting the weaker ones. In this work, a Repetitive Interference Mitigation algorithm is proposed, with focus on power differences between User Equipment (UE) and guard subcarriers. This process ensures decryption of the packets that arrive at the same time. Usage of just one guard subcarriers and multiple iterations of the developed technique is suitable to ensure a very good system performance and has a throughput of 36% as compared with other methods. © 2022 IEEE.

关键词： Wide area networks

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High-Performance 2D Fets With Single-Crystal Anatase TiO2 High-$\kappa$ Dielectric

High-Performance 2D Fets With Single-Crystal Anatase TiO2 Hi...

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IEEE Electron Devices Technology and Manufacturing Conference (EDTM)

作者： Ni Yang Ji Zhang Yu-Ming Chang Fangyuan Zheng Lingqi Li Chenyang Li Jian Liu Dong-Keun Ki Yi Wan Sean Li Kah-Wee Ang Jing-Kai Huang Lain-Jong Li Department of Mechanical Engineering University of Hong Kong Hong Kong China School of Materials Science and Engineering University of New South Wales Sydney Australia Department of Electrical and Computer Engineering National University of Singapore Singapore Department of Systems Engineering City University of Hong Kong Hong Kong China Department of Physics and HK Institute of Quantum Science and Technology University of Hong Kong Hong Kong China

ISBN: (数字)9798331504168

ISBN: (纸本)9798331504175

Several bottlenecks must be resolved before two-dimensional (2D) materials-based transistors can be adopted for advanced electronics, particularly the challenge of coupling high- $\kappa$ dielectrics with 2D semiconductors without adverse effects and continuing to scale their capacitance equivalent thickness (CET). In this work, we have developed a novel single-crystal dielectric and a corresponding integration approach to achieve 2D MoS 2 field-effect transistors (FETs) with outstanding performance, including steep SS ( $\sim 68 \text{mV} /$ dec) and high ON/OFF ratio ( $>10^{7}$ ).

关键词： Two-dimensional displays Field effect transistors Logic gates Dielectrics Sulfur Leakage currents Molybdenum Titanium dioxide Photomicrography Surface treatment

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Model Predictive Control in Optimal Intervention of Covid-19 with Mixed Epistemic-Aleatoric Uncertainty

Model Predictive Control in Optimal Intervention of Covid-19...

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Simulation Winter Conference

作者： Jinming Wan Saeideh Mirghorbani N. Eva Wu Changqing Cheng Department of Systems Science and Industrial Engineering Binghamton University Binghamton NY USA Department of Business Analytics and Operations Binghamton University Binghamton NY USA Department of Electrical and Computer Engineering Binghamton University Binghamton NY USA

Non-pharmaceutical interventions (NPI) have been proven vital in the fight against the COVID-19 pandemic before the massive rollout of vaccinations. Considering the inherent epistemic-aleatoric uncertainty of parameters, accurate simulation and modeling of the interplay between the NPI and contagion dynamics are critical to the optimal design of intervention policies. We propose a modified SIRD-MPC model that combines a modified stochastic Susceptible-Infected-Recovered-Deceased (SIRD) compartment model with mixed epistemic-aleatoric parameters and Model Predictive Control (MPC), to develop robust NPI control policies to contain the infection of the COVID-19 pandemic with minimum economic impact. The simulation result indicates that our proposed model can significantly decrease the infection rate compared to the practical results under the same initial conditions.

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Multi-agent system for optimized energy management in multi-smart buildings via deregulated market system

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Energy Reports 2025年 14卷 455-472页

作者： Abdul Haseeb Sajid Muhammad Zubair Iftikhar Syed Ali Abbas Kazmi Zafar A. Khan Sultan Alghamdi Muhammad Waseem US-Pakistan Centre for Advanced Studies in Energy (USPCAS-E) National University of Sciences & Technology (NUST) H-12 Sector Islamabad 44000 Pakistan Department of Electrical and Electronic Engineering The University of Melbourne VIC 3010 Australia Department of Electrical Engineering Mirpur University of Science and Technology Mirpur AJK Pakistan Department of Electrical and Computer Engineering Faculty of Engineering King Abdulaziz University Jeddah 21589 Saudi Arabia Center of Research Excellence in Renewable Energy and Power Systems King Abdulaziz University Jeddah 21589 Saudi Arabia International Renewable and Energy Systems Integration Research Group (IRESI) School of Business Maynooth University Maynooth Co. Kildare W23 HW31 Ireland

A key focus in smart grid research, especially within emerging distribution frameworks, is the effective management of energy resources. The proposed approach employs a multi-agent system to manage energy resources in interconnected smart buildings. The goal is to enhance resilience by determining the energy available for consumption or storage from the source by generating agent, adjusting energy usage in response to grid cost by load agent, and optimizing the supply-and-demand dynamic by storing surplus power during peak hours and discharging it during off-peak hours by storage agent. A MATLAB simulation-based model was developed to analyze five different cases, resulting in the proposed scheme. During off-peak hours, grid dependence decreases by 65.5 %, by 73.49 % during mid-peak hours, and by 85.9 % during peak hours, compared to the base case. When comparing case 3 to the base scenario, the share of energy imported by buildings from the main grid during off-peak, mid-peak, and peak hours is reduced to 69.8 %, 76.51 %, and 89.39 %, respectively, following the implementation of the deregulated market system. This paper presented a genetic algorithm in case 4 to optimize consumption patterns to minimize costs and achieve a 30 % reduction in consumption during peak hours. The resulting consumption decreases peak-hour grid imports by 85.4 % and 96.1 % for building 1 and building 3, respectively, compared to the base case. The findings of this study are useful in understanding the prospects of transforming the energy landscape through proper energy management and enabling a competitive energy market structure.

关键词： GA Generating Agent FIT Feed-In Tariff DER Distributed Energy Resources EMMC Energy Market Management Centre MCA Microgrid Control Agent DRP Demand Response Program SA Storage Agent TOU Time of Use RTP Real-Time Pricing PV Photovoltaic GP Generation Pattern DSM Demand Side Management GHG Greenhouse Gases PAR Peak-to-Average Ratio ESS Energy Storage System SOC State of Charge MCP Market Clearing Price MAS Multi-Agent System RER Renewable Energy Resources Demand side management Deregulated market system Energy scheduling Multi-agent system

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