检索结果-内蒙古大学图书馆

IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN)

作者： Christian Wernecke Helge Parzyjegla Gero Mühl Eike Schweissguth Dirk Timmermann Institute of Computer Science University of Rostock Rostock Germany Institute of Applied Microelectronics and Computer Engineering University of Rostock Rostock Germany

ISBN: (数字)9781728145457

ISBN: (纸本)9781728145464

Publish/subscribe is a versatile communication pattern for realizing loosely coupled distributed applications. In its content-based variant, the content of each published notification is matched against the active subscriptions to determine the set of subscribers that shall receive the notification. The fact that this set may be completely different compared to that of a preceding or a succeeding notification makes it difficult to find and install beneficial forwarding rules on the network switches. In this paper, we present novel forwarding schemes based on the P4 language that (i) use dynamic forwarding information placed in the notification's header, (ii) use static forwarding rules installed on the network switches, and (iii) combine dynamic forwarding information with static forwarding rules to precisely set the respective trade-off. We evaluate our forwarding strategies, show their applicability as well as their benefits for content-based publish/subscribe, and discuss future research directions.

关键词： Pipelines Multiprotocol label switching Cloning Conferences Network function virtualization Software defined networking Switches

来源：评论

学校读者我要写书评

暂无评论

Superconducting Microstrip Losses at Microwave and Submillimeter Wavelengths

引用

Physical Review applied 2021年第1期16卷 014019-014019页

作者： S. Hähnle K. Kouwenhoven B. Buijtendorp A. Endo K. Karatsu D.J. Thoen V. Murugesan J.J.A. Baselmans SRON - Netherlands Institute for Space Research Sorbonnelaan 2 Utrecht 3584 CA The Netherlands Department of Microelectronics Faculty of Electrical Engineering Mathematics and Computer Science (EEMCS) Delft University of Technology Mekelweg 4 Delft 2628 CD The Netherlands Kavli Institute of NanoScience Faculty of Applied Sciences Delft University of Technology Lorentzweg 1 Delft 2628 CJ The Netherlands

We present a lab-on-chip experiment to accurately measure losses of superconducting microstrip lines at microwave and submillimeter wavelengths. The microstrips are fabricated from Nb−Ti−N, which is deposited using reactive magnetron sputtering, and amorphous silicon which is deposited using plasma-enhanced chemical vapor deposition (PECVD). Submillimeter wave losses are measured using on-chip Fabry-Perot resonators (FPRs) operating around 350 GHz. Microwave losses are measured using shunted half-wave resonators with an identical geometry and fabricated on the same chip. We measure a loss tangent of the amorphous silicon at single-photon energies of tan δ=3.7±0.5×10−5 at approximately 6GHz and tan δ=2.1±0.1×10−4 at 350 GHz. These results represent very low losses for deposited dielectrics, but the submillimeter wave losses are significantly higher than the microwave losses, which cannot be understood using the standard two-level system loss model.

关键词： Metrology Optoelectronics Quantum information with solid state qubits Superconducting quantum optics Superconducting devices Cavity resonators Microwave techniques Terahertz spectroscopy

来源：评论

学校读者我要写书评

暂无评论

Low-Complexity Channel Estimation for RIS-Assisted ISAC System

arXiv

引用

arXiv 2025年

作者： Zhen, Chen Jianqing, Li Haijun, Zhang Wei, Zhang The Institute of Microelectronics University of Macau China School of Computer Science and Engineering Macau University of Science and Technology China Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services University of Science and Technology Beijing Beijing China Henan Academy of Science Applied Physics Institute Co.Ltd Henan Zhengzhou China

Integrated sensing and communication (ISAC), assisted by reconfigurable intelligent surface (RIS) has emerged as a breakthrough technology to improve the capacity and reliability of 6G wireless network. However, a significant challenge in RIS-ISAC systems is the acquisition of channel state information (CSI), largely due to co-channel interference, which hinders meeting the required reliability standards. To address this issue, a minimax-concave penalty (MCP)based CSI refinement scheme is proposed. This approach utilizes an element-grouping strategy to jointly estimate the ISAC channel and the RIS phase shift matrix. Unlike previous methods, our scheme exploits the inherent sparsity in RIS-assisted ISAC channels to reduce training overhead, and the near-optimal solution is derived for our studied RIS-ISAC scheme. The effectiveness of the element-grouping strategy is validated through simulation experiments, demonstrating superior channel estimation results when compared to existing benchmarks. Copyright © 2025, The Authors. All rights reserved.

关键词： Channel coding

来源：评论

学校读者我要写书评

暂无评论

A Simulation Model of IEEE 802.1AS gPTP for Clock Synchronization in OMNeT++ 5th

A Simulation Model of IEEE 802.1AS gPTP for Clock Synchroniz...

引用

5th International OMNeT++ Community Summit, OMNeT 2018

作者： Puttnies, Henning Danielis, Peter Janchivnyambuu, Enkhtuvshin Timmermann, Dirk University of Rostock Institute of Applied Microelectronics and Computer Engineering Germany

The aim of this paper is to describe a developed simulation model of the gPTP protocol for time synchronization in OMNeT++ using the INET library. gPTP is part of the IEEE TSN standards. Unfortunately, there is currently no simulation model of gPTP available. Therefore, we developed a new simulation model, compared it to results from the state-ofthe-art, and would like to share it with the OMNeT++ community. The simulation model is based on the IEEE 802.1AS specification for full-duplex Ethernet according to a given network topology and use case scenario to analyze the results of the simulation as well as to provide a comparison with results from the state-of-the-art. Time synchronization and propagation delay measurements between time-aware systems are considered and results show that the simulation model works as expected. © 2018, EPiC Series in Computing. All rights reserved.

关键词： Internet protocols

来源：评论

学校读者我要写书评

暂无评论

Recent progress of integrated circuits and optoelectronic chips

引用

Science China(Information Sciences) 2021年第10期64卷 103-135页

作者： Yue HAO Shuiying XIANG Genquan HAN Jincheng ZHANG Xiaohua MA Zhangming ZHU Xingxing GUO Yahui ZHANG Yanan HAN Ziwei SONG Yan LIU Ling YANG Hong ZHOU Jiangyi SHI Wei ZHANG Min XU Weisheng ZHAO Biao PAN Yangqi HUANG Qi LIU Yimao CAI Jian ZHU Xin OU Tiangui YOU Huaqiang WU Bin GAO Zhiyong ZHANG Guoping GUO Yonghua CHEN Yong LIU Xiangfei CHEN Chunlai XUE Xingjun WANG Lixia ZHAO Xihua ZOU Lianshan YAN Ming LI School of Microelectronics Xidian University State Key Laboratory of Integrated Service Networks Xidian University National Integrated Circuit Innovation Center School of Microelectronics Fudan University School of Integrated Circuit Science and Engineering Beihang University China Center for Information Industry Development Frontier Institute of Chip and System Fudan University Institute of Microelectronics Peking University Nanjing Electronic Devices Institute State Key Laboratory of Functional Material for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Institute of Microelectronics Tsinghua University Center for Carbon-based Electronics Department of Electronics Peking University CAS Key Laboratory of Quantum Information University of Science and Technology of China CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics University of Science and Technology of China Origin Quantum Computing Company Limited Key Laboratory of Flexible Electronics & Institute of Advanced Materials Nanjing Tech University State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China National Laboratory of Solid State Microstructures & College of Engineering and Applied Sciences Nanjing University State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer Science Peking University School of Electrical and Electronic Engineering Tiangong University Center for Information Photonics and Communications School of Information Science and TechnologySouthwest Jiaotong University School of Electronic Electrical and Communication Engineering

Integrated circuits(ICs) and optoelectronic chips are the foundation stones of the modern information society. The IC industry has been driven by the so-called "Moore's law" in the past 60 years, and now has entered the post Moore's law era. In this paper, we review the recent progress of ICs and optoelectronic chips. The research status, technical challenges and development trend of devices, chips and integrated technologies of typical IC and optoelectronic chips are focused on. The main contents include the development law of IC and optoelectronic chip technology, the IC design and processing technology, emerging memory and chip architecture, brain-like chip structure and its mechanism, heterogeneous integration, quantum chip technology, silicon photonics chip technology, integrated microwave photonic chip, and optoelectronic hybrid integrated chip.

关键词： integrated circuit semiconductor science and technology optoelectronic device and chip photonic integrated circuit wide bandgap semiconductors silicon photonics hybrid integration quantum chip integrated microwave photonic photonic neural computing

来源：评论

学校读者我要写书评

暂无评论

jUDPWrapper: A Lightweight Approach to Access the OMNeT++/INET UDP Functionality from Java 5th

jUDPWrapper: A Lightweight Approach to Access the OMNeT++/IN...

引用

5th International OMNeT++ Community Summit, OMNeT 2018

作者： Puttnies, Henning Danielis, Peter Thiele, Leonard Timmermann, Dirk University of Rostock Faculty of Computer Science and Electrical Engineering Institute of Applied Microelectronics and Computer Engineering Germany

There are three methods to evaluate networked systems during the design phase: by means of simulation, a practical testbed, and mathematical analysis. In this paper, we propose the jUDPWrapper, which enables to access the OMNeT++/INET UDP functionality from Java using the Java Extensions for OMNeT++. The jUDPWrapper provides a socket-based API corresponding to the standard API defined in the *** package. Consequently, it enables to develop application layer simulation models in Java and hereafter easily derive a Java prototype implementation. Therefore, the jUDPWrapper eases the evaluation of Java UDP applications using both simulation and practical testbed. We evaluate the jUDPWrapper using two distinct versions of OMNeT++/INET, provide the Java Extensions for OMNeT++ 5.4, and for the first time quantify the execution time of Java models versus C++ models. C++ models are approx. twice as fast as Java models in long simulation runs, if the release mode is used. © 2018, EPiC Series in Computing. All rights reserved.

关键词： Java programming language

来源：评论

学校读者我要写书评

暂无评论

Automated Sensor Firmware Development - Generation, Optimization, and Analysis

Automated Sensor Firmware Development - Generation, Optimiza...

引用

MBMV 2019;22nd Workshop - Methods and Description Languages for Modelling and Verification of Circuits and Systems

作者： Jens Rudolf Manuel Strobel Joscha Benz Christian Haubelt Martin Radetzki Oliver Bringmann Institute of Applied Microelectronics and Computer Engineering University of Rostock Chair of Embedded Systems University of Stuttgart Embedded Systems Department University of Tubingen

ISBN: (纸本)9783800749454

Embedded systems design has lately become particularly challenging due to fast increasing system complexities, realtime demands and reliability requirements. At the same time, designs are constrained by stringent power budgets, limited memory capacity and short time-to-markets. Recently, various methods to automatically generate, analyze, and optimize different stages of the design flow have been investigated. The evaluation of these methods, however, often focuses on a single associated field of research and thus may not consider the domain-crossing effects that stem from the interaction of different design methods. This paper presents a complete and fully automated workflow that covers model-based generation, analysis, and optimization aspects for embedded firmware and demonstrates it on a virtual system prototype of a typical inertial sensor node. We illustrate the integration of different design and evaluation methods on a realistic example and show potential opportunities for the application of gathered information in order to improve the design.

关键词： Design flow power budget Firmware evaluation method memory capacity Embedded systems Automation Analysis Sensors Virtual Systems

来源：评论

学校读者我要写书评

暂无评论

Generating 3D TOF-MRA volumes and segmentation labels using generative adversarial networks

引用

Medical Image Analysis 2022年 78卷 102396-102396页

作者： Subramaniam, Pooja Kossen, Tabea Ritter, Kerstin Hennemuth, Anja Hildebrand, Kristian Hilbert, Adam Sobesky, Jan Livne, Michelle Galinovic, Ivana Khalil, Ahmed A. Fiebach, Jochen B. Frey, Dietmar Madai, Vince I. CLAIM - Charité Lab for AI in Medicine Charité Universitätsmedizin Berlin Germany Department of Computer Engineering and Microelectronics Computer Vision & Remote Sensing Technical University Berlin Berlin Germany Berlin Germany Bernstein Center for Computational Neuroscience Berlin Germany Institute for Imaging Science and Computational Modelling in Cardiovascular Medicine Charité Universitätsmedizin Berlin Berlin Germany Fraunhofer MEVIS Max-von-Laue-Str. 2 Bremen Germany Department VI Computer Science and Media Beuth University of Applied Sciences Berlin Germany Johanna-Etienne-Hospital Neuss Germany Centre for Stroke Research Berlin Charité Universitätsmedizin Berlin Berlin Germany Department of Neurology Max Planck Institute for Human Cognitive and Brain Sciences Leipzig Germany Mind Brain Body Institute Berlin School of Mind and Brain Humboldt University Berlin Berlin Germany Berlin Institute of Health Berlin Germany School of Computing and Digital Technology Faculty of Computing Engineering and the Built Environment Birmingham City University Birmingham United Kingdom QUEST-Center for Transforming Biomedical Research Berlin Institute of Health Charité Universitätsmedizin Berlin Charitéplatz 1 Berlin10117 Germany

Deep learning requires large labeled datasets that are difficult to gather in medical imaging due to data privacy issues and time-consuming manual labeling. Generative Adversarial Networks (GANs) can alleviate these challenges enabling synthesis of shareable data. While 2D GANs have been used to generate 2D images with their corresponding labels, they cannot capture the volumetric information of 3D medical imaging. 3D GANs are more suitable for this and have been used to generate 3D volumes but not their corresponding labels. One reason might be that synthesizing 3D volumes is challenging owing to computational limitations. In this work, we present 3D GANs for the generation of 3D medical image volumes with corresponding labels applying mixed precision to alleviate computational constraints. We generated 3D Time-of-Flight Magnetic Resonance Angiography (TOF-MRA) patches with their corresponding brain blood vessel segmentation labels. We used four variants of 3D Wasserstein GAN (WGAN) with: 1) gradient penalty (GP), 2) GP with spectral normalization (SN), 3) SN with mixed precision (SN-MP), and 4) SN-MP with double filters per layer (c-SN-MP). The generated patches were quantitatively evaluated using the Fréchet Inception Distance (FID) and Precision and Recall of Distributions (PRD). Further, 3D U-Nets were trained with patch-label pairs from different WGAN models and their performance was compared to the performance of a benchmark U-Net trained on real data. The segmentation performance of all U-Net models was assessed using Dice Similarity Coefficient (DSC) and balanced Average Hausdorff Distance (bAVD) for a) all vessels, and b) intracranial vessels only. Our results show that patches generated with WGAN models using mixed precision (SN-MP and c-SN-MP) yielded the lowest FID scores and the best PRD curves. Among the 3D U-Nets trained with synthetic patch-label pairs, c-SN-MP pairs achieved the highest DSC (0.841) and lowest bAVD (0.508) compared to the benchmark

关键词： Generative adversarial networks

来源：评论

学校读者我要写书评

暂无评论

Artificial optoelectronic synapses based on Ga2O3metal–semiconductor–metal solar-blind ultraviolet photodetectors with asymmetric electrodes for neuromorphic computing

Responsive Materials

引用

Responsive Materials 2025年第2期

作者： Huazhen Sun Bingjie Ye Mei Ge Biao Gong Leyang Qian Irina N. Parkhomenko Fadei F. Komarov Yu Liu Guofeng Yang School of Science Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology Jiangnan University Wuxi Jiangsu China School of Microelectronics School of Integrated Circuits Nantong University Nantong China Faculty of Radiophysics and Computer Sciences Belarusian State University Minsk Belarus A.N. Sevchenko Institute of Applied Physical Problems of Belarusian State University Minsk Belarus Center for Quantum Devices Niels Bohr Institute University of Copenhagen Copenhagen Denmark

Research on optoelectronic synapses that can integrate both detection and processing functions is essential for the development of efficient neuromorphic computing. Here, we experimentally demonstrated an Ga 2 O 3 -based metal–semiconductor–metal (MSM) solar-blind ultraviolet (UV) photodetector (PD) with asymmetric interdigital electrodes. The Ga 2 O 3 PD exhibits a responsivity of 732 A/W under a forward bias of 6 V. The tunable conductance properties of PDs provide a novel approach to synaptic performance. The proposed PDs as artificial synapse realized several essential synaptic function, including excitatory postsynaptic current, paired-pulse facilitation, long-term potentiation, the transition from short-term memory to long-term memory, and learning experience behaviors successfully. At a reverse bias, an ultra-low energy consumption of 140 fJ was achieved. In addition, the optoelectronic synapses demonstrated a recognition accuracy of over 95% in the MNIST handwritten number recognition task. These results suggest that Ga 2 O 3 MSM solar-blind UV PDs have high potential for efficient optoelectronic neuromorphic computing applications.

关键词： asymmetric electrodes Ga2O3 neuromorphic computing optoelectronic synapse solar-blind UV PDs

来源：评论

学校读者我要写书评

暂无评论

Power Silicon Carbide Schottky Diodes as Current Mode $\gamma$ - Radiation Detectors

Power Silicon Carbide Schottky Diodes as Current Mode $\gamm...

引用

International Conference on microelectronics, MIEL

作者： S. D. Ilić M. S. Andjelković M. A. Carvajal A. M. Lallena M. Krstić S. Stanković G. S. Ristić Center of Microelectronic Technologies Institute of Chemistry Technology and Metallurgy University of Belgrade Serbia Applied Physics Laboratory at Faculty of Electronic Engineering University of Niš Niš Serbia System Architectures Department IHP - Leibniz-Institut für innovative Mikroelektronik Frankfurt (Oder) Germany Department of Electronics and Computer Technology University of Granada Granada Spain Department of Radiation and Environmental Protection at the Vincča Institute of Nuclear Sciences Belgrade Serbia Department of Radiation and Environmental Protection at the Vinc?a Institute of Nuclear Sciences Belgrade Serbia Department of Microelectronics Faculty of Electronic Engineering University of Niš Niš Serbia

In this paper, the feasibility of using commercial power Silicon Carbide (SiC) Schottky diodes as a current mode γ-radiation detector have been examined. Diodes with almost identical electric characteristics are purchased from two different manufacturers, On Semiconductor and RoHM. They have been tested under gamma radiation exposure from a Co-60 source. The current response during irradiation has been measured for various dose rates with reversed diode bias. Investigated range of dose rates was from 0.258 Gy/h to 26.312 Gy/h, and reverse diode bias values were 10 V, 20 V, 50 V, 100 V and 200 V. Tested Schottky diodes produce stable current response for the investigated dose rates. Although the manufacturers are different, the results show that the dosimetric characteristics of these diodes have an excellent match. Sensitivity was proportional to the applied reverse bias voltage. A simple power-law can very well describe the dependence of measured radiation-induced current on dose rate.

关键词： Schottky diodes Semiconductor device measurement Radiation effects Voltage measurement Sensitivity Power measurement Silicon carbide

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：