检索结果-内蒙古大学图书馆

IEEE Conference on Vehicular technology (VTC)

作者： Ying Luo Jun-tao Wu Min Zeng Kai Xiong Hong Jiang College of Information Engineering SouthWest University of Science and Technology China Glasgow College University of Electronic Science and Technology of China China School of Information and Communication Engineering University of Electronic Science and Technology of China China

ISBN: (数字)9798350387414

ISBN: (纸本)9798350387421

The fluctuant and unreliable available energy has been the main reason for limiting the development of Energy Harvesting (EH)-based Device-to-Device (D2D) communication. Multicasting can further improve energy efficiency by content sharing for EH-D2D communication. However, to satisfy the transmission Quality of Service (QoS) of cluster member with the worst channel state quality, the single cluster head in an EH-based D2D Multicast (EH-D2MD) communication will face the conflict between energy shortage and consumption due to the requirement of energy consumption of multicasting and the fluctuation of available energy of EH. As a result, the QoS of multicasting transmission will deteriorate rapidly. To address the conflict, this paper designs an Adaptive Content Sharing scheme of Multi-cluster Head (ACS-MH) with the aim of improving the throughput of EH-D2MD. To solve the non-convex Mixed Integer Non-Linear Programming (MINLP) property of the throughput maximization problem and give it a union solution, we propose a three-step Convex Approximate lower-bound Algorithm (3-CDA). Simulations show that ACS-MH can effectively improve the throughput and spectrum efficiency of EH-D2MD.

关键词： Energy consumption Vehicular and wireless technologies Multicast algorithms Limiting Simulation Quality of service Multicast communication

来源：评论

学校读者我要写书评

暂无评论

PLSR Enhanced Ultra-Wide Measuring Range Fiber-Optic Curvature Sensor Based on Mode Switching Effect in Four Mode Fiber

PLSR Enhanced Ultra-Wide Measuring Range Fiber-Optic Curvatu...

引用

2023 Asia communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Xu, Wei Tang, Mutian Li, Zhen Chen, Enqing Tao, Jin Yu, Changyuan Sheng, Chunmin Xu, Feng School of Electronic and Information Engineering Changshu Institute of Technology Suzhou China Zhejiang Dongtong Optical Network IoT Technology Co. Ltd Huzhou China Suzhou Source-Digit Communication Technology Co. Ltd Suzhou215000 China School of Economics and Management Tsinghua University Beijing100084 China China Information and Communication Technology Group Co. Ltd National Key Laboratory of Optical Communication Technology and Network Wuhan430074 China Xi'an High Technology Institute Xi'an710025 China Shenzhen518055 China The Hong Kong Polytechnic University Department of Electronic and Information Engineering Kowloon Hong Kong Southeast University SEU-FEI Nano-Pico Center Key Laboratory of Mems of Ministry of Education Nanjing211189 China

A partial least squares regression (PLSR) enhanced ultra-wide measuring range fiber-optic curvature sensor based on mode switching effect in four-mode fiber is proposed and investigated. The curvature measuring range ... 详细信息

ISBN: (纸本)9798350312614

关键词： curvature four mode fiber mode switching partial least squares regression wide measuring range

来源：评论

学校读者我要写书评

暂无评论

Virtual Carrier Phase Shift Pulse Width Modulation Strategy for Asymmetrical Cascaded Multilevel Power Amplifier 10

Virtual Carrier Phase Shift Pulse Width Modulation Strategy ...

引用

10th China International Conference on Electricity Distribution, CICED 2022

作者： Yue, Yufei Wu, Xinglong Yang, Xi Wang, Wen Tang, Xin Guo, Peng School of Electrical and Information Engineering Changsha University of Science & Technology Changsha China National Electric Power Conversion and Control Engineering Technology Research Center Hunan University Changsha China

ISBN: (数字)9781665452687

ISBN: (纸本)9781665452687

Conventional cascaded H-bridge power amplifier (CHB-PA) with N H-bridge power modules (HBPMs) could create 2N+1 level for output voltage at most and the output voltage level directly affects the sinusoidal characteristic and fidelity performance of power amplifier. With the same number of cascaded HBPMs, this paper proposes an asymmetrical cascaded multilevel power amplifier (ACM-PA) in which the voltage of one HBPM is one-third of the voltage of the other HBPMs, reducing the withstand voltage level of the HBPM. A virtual carrier phase shift pulse width modulation (VCPS-PWM) strategy is also proposed for ACM-PA to increase the output voltage level up to 6N-3 with the HBPM number as the same as conventional CHB-PA. Comparative simulation and experimental results are included to validate that the proposed ACM-PA and VCPS-PWM could obviously increase the output voltage level and decrease the total harmonic distortion (THD) of load current, improving the fidelity performance of power amplifier. © 2022 IEEE.

关键词： Power amplifiers

来源：评论

学校读者我要写书评

暂无评论

First-order Bandgap Reference Source Design with High Power Supply Rejection Ratio

First-order Bandgap Reference Source Design with High Power ...

引用

2022 International Conference on Electronics technology and Artificial Intelligence, ETAI 2022

作者： Kang, Yunxin Xu, Ling Shandong Technology and Business University School of Information and Electronic Engineering Shandong Key Laboratory of Perceptual Technology and Control in Colleges and Universities ShanDong Yantai264000 China

In this paper, a first-order bandgap reference source with a high power supply rejection ratio (PSRR) is designed. To obtain a low-temperature coefficient, a first-order bandgap temperature coefficient compensation method is used by adjusting the resistor resistance of the positive and negative temperature coefficients, and the gate-source voltage of the current mirror transistor is kept constant to increase the PSRR value in the low-frequency band. A self-start circuit is added to make the circuit start up quickly out of the simple bias point. The simulation results show that the bandgap reference voltage source has a constant 1.25V reference voltage with a temperature coefficient of 8.55ppm/°C in the temperature range of -40 to 125°C. The circuit is simulated using Cadence software. The circuit can be applied to OLED constant current source circuits and power management circuits. © Published under licence by IOP Publishing Ltd.

关键词： Temperature

来源：评论

学校读者我要写书评

暂无评论

DiffusionAD: Norm-Guided One-Step Denoising Diffusion for Anomaly Detection

引用

IEEE Transactions on Pattern Analysis and Machine Intelligence 2025年

作者： Zhang, Hui Wang, Zheng Zeng, Dan Wu, Zuxuan Jiang, Yu-Gang Fudan University School of Computer Science China Zhejiang University of Technology School of Computer Science China Shanghai University School of Communication & Information Engineering China

Anomaly detection has garnered extensive applications in real industrial manufacturing due to its remarkable effectiveness and efficiency. However, previous generative-based models have been limited by suboptimal reconstruction quality, hampering their overall performance. We introduce DiffusionAD, a novel anomaly detection pipeline comprising a reconstruction sub-network and a segmentation sub-network. A fundamental enhancement lies in our reformulation of the reconstruction process using a diffusion model into a noise-to-norm paradigm. Here, the anomalous region loses its distinctive features after being disturbed by Gaussian noise and is subsequently reconstructed into an anomaly-free one. Afterward, the segmentation sub-network predicts pixel-level anomaly scores based on the similarities and discrepancies between the input image and its anomaly-free reconstruction. Additionally, given the substantial decrease in inference speed due to the iterative denoising nature of diffusion models, we revisit the denoising process and introduce a rapid one-step denoising paradigm. This paradigm achieves hundreds of times acceleration while preserving comparable reconstruction quality. Furthermore, considering the diversity in the manifestation of anomalies, we propose a norm-guided paradigm to integrate the benefits of multiple noise scales, enhancing the fidelity of reconstructions. Comprehensive evaluations on four standard and challenging benchmarks reveal that DiffusionAD outperforms current state-of-the-art approaches and achieves comparable inference speed, demonstrating the effectiveness and broad applicability of the proposed pipeline. © 1979-2012 IEEE.

关键词： Image denoising

来源：评论

学校读者我要写书评

暂无评论

Experimental Study on Transition Loss of On-Chip SIW Interconnects and Transmission Lines Using Two De-Embedding Reference Planes in 200 GHz Band Frequency

Experimental Study on Transition Loss of On-Chip SIW Interco...

引用

Microwave, MTT-S International Symposium

作者： Samundra K. Thapa Ramesh K. Pokharel Adel Barakat Shuhei Amakawa Mohamed H. Mubarak Shinsuke Hara Issei Watanabe Akifumi Kasamatsu Graduate School of Information Science and Electrical Engineering Kyushu University Japan Hiroshima University Japan National Institute of Information and Communication Technology Japan

ISBN: (数字)9798350375046

ISBN: (纸本)9798350375053

A method for calculating transition loss in long lowloss substrate integrated waveguide (SIW)-based transmission lines fabricated using commercial complementary metal-oxidesemiconductor (CMOS) technology is presented. To quantify the accurate transition loss, the proposed approach employed twostep de-embedding technique besides normal measurement setup calibration using impedance standard substrate (ISS) at two distinct reference points: the first mitigates measuring pad effects, and the second removes both pads and transition structures. By using the attenuation constants calculated from these reference planes, the intrinsic transition loss is estimated. From the experiment, a low transition loss is observed in the proposed SIW design, which varies between 0.2 dB and 1.3 dB over a wide measurement bandwidth of 120 to 220 GHz. The experimental results underscore the efficacy of the proposed method and suggest the potential for consistent performance above the current measurement threshold of 220 GHz, which could be pivotal for terahertz (THz) applications.

关键词： Microwave measurement Power transmission lines Accuracy Impedance measurement Current measurement Transmission line measurements Propagation losses

来源：评论

学校读者我要写书评

暂无评论

Adjacent Vertex Reducible Total Labeling of Graphs

IAENG International Journal of Computer Science

引用

IAENG International Journal of Computer Science 2023年第2期50卷 715页

作者： Wang, Li Li, Jingwen Zhang, Lijing School of information processing and control engineering Lanzhou Petrochemical University of Vocational Technology Lanzhou730060 China

The Adjacent Vertex Reducible Total Labeling (AVRTL) of a graph G(V,E) is a bijection from V(G) ∪ E(G) to the set of consecutive integers {1,1,…,|V(G)| + |E(G)|}, and the sum of the labels is the same for any two adjacent vertices in the graph of the same degree, being the label of that vertex plus the labels of all associated edges of that vertex. Combining with real-life problems, a novel algorithm is designed by drawing on the ideas of traditional intelligent algorithms such as genetic algorithms and bee colony algorithms. The algorithm labels the vertices and edges of random graphs with the help of preprocessing function, adjustment function, backward function, etc., in a circular, iterative merit-seeking way and discriminates whether there is an Adjacent Vertex Reducible Total Labeling for all non-isomorphic graphs within finite vertices. By analyzing and summarizing the experimental results, the labeling rules of road graphs, circle graphs, star graphs, wheel graphs, fan graphs, friendship graphs and several joint graphs were obtained, the relevant theorems were summarized, and the corresponding proofs were given. © 2023, IAENG International Journal of Computer Science. All Rights Reserved.

关键词： Iterative methods

来源：评论

学校读者我要写书评

暂无评论

783-MHz fundamental repetition rate CNT mode-locked all Er-doped fiber ring laser

783-MHz fundamental repetition rate CNT mode-locked all Er-d...

引用

CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Dai, Maolin Liu, Bowen Ma, Yifan Shirahata, Takuma Yang, Ruoao Zhang, Zhigang Set, Sze Yun Yamashita, Shinji Department of Electrical Engineering and Information Systems The University of Tokyo Bunkyo-ku Tokyo113-8656 Japan Research Center for Advanced Science and Technology The University of Tokyo Meguro-ku Tokyo153-8904 Japan State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Center for Quantum Information Technology Peking University Beijing100871 China

We realize 783-MHz fundamental repetition rate in a carbon-nanotubes (CNT) modelocked Er-doped fiber ring laser with all active fibers. The proposed laser self-starts mode-locking at 108-mW pump power and delivers 623... 详细信息

关键词： Ring lasers

来源：评论

学校读者我要写书评

暂无评论

A User-Centric Self-Sovereign Identity-Based Authentication Framework for Decentralized Data Management in Healthcare Settings 1

A User-Centric Self-Sovereign Identity-Based Authentication ...

引用

1st International Conference on Recent Advances in information technology for Sustainable Development, ICRAIS 2023

作者： Pujari, Chetana Muniyal, Balachandra Chandrakala, C.B. Rajarajan, Muttukrishnan Manipal Institute of Technology Manipal Academy of Higher Education Department of Information and Communication Technology Karnataka Manipal576104 India School of Science & Technology City University of London Department of Engineering LondonEC1V 0RB United Kingdom

ISBN: (纸本)9798350306637

Establishing identities and privacy in the modern digital landscape faces critical challenges, such as counterfeit identities, identity theft, and data breaches. These issues have significant implications for the healthcare system. To address these concerns, access control and Self-Sovereign Identity (SSI) play vital roles in creating a privacy-conscious ecosystem. SSI enables user-centric management of identification credentials and electronic health records (EHR), allowing users to validate their credentials without relying on central or external servers. The proposed work is an innovative approach to identifying various stakeholders in the healthcare system. By utilizing cryptographic proofs, the proposed method instills trust in the stakeholder's identity. Moreover, the proposed work successfully mitigates various security attacks. The demonstration of this work leverages the Hyperledger Aries framework and a test blockchain network called Von-network. © 2023 IEEE.

关键词： Blockchain

来源：评论

学校读者我要写书评

暂无评论

Development of an IoT-based Inventory Management System for Retail Stores

Development of an IoT-based Inventory Management System for ...

引用

2023 International Conference on Sustainable Computing and Smart Systems, ICSCSS 2023

作者： Saillaja, V. Menaka, M. Kumaravel, V. MacHap, Kamalakannan Sri Sairam Engineering College Department of Management Studies Tamil Nadu Chennai India Kingston Engineering College Department of Information Technology Tamil Nadu Vellore India R.M.D Engineering College Department of Electronics and Communication Engineering Tamil Nadu Chennai India Asia Pacific University of Technology and Innovation School of Technology Kuala Lumpur Malaysia

ISBN: (纸本)9798350333602

controlling inventory is the essential component of an effective retail management system. Maintaining accurate records of inventories enables the user to engage in preplanning and decision-making. These days, the neighborhood stores and giant industries keep their inventory on enormous shelves or in enormous areas devoted to storage. To ascertain the current inventory level, the proprietors of these shops or enterprises must count the packets by hand. This paper proposes developing an IoT-based stock administration framework for retail locations to improve stock accuracy, optimize production network cycles, and enhance customer experience. The system integrates cloud-based analytics with IoT-enabled sensors to monitor and manage real-time inventory levels. As a result, retailers obtain current data on inventory levels, product availability, and demand trends. The proposed system enables retailers to optimize inventory levels, reduce stockouts and overstock, and improve sales performance by ensuring that popular products are always available. In addition, the system provides retailers with insight into their customers' purchasing patterns and preferences, enabling them to personalize products and increase consumer loyalty. © 2023 IEEE.

关键词： Retail stores

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：