检索结果-内蒙古大学图书馆

An Integrated Silicon Photonic Chip for Continuous-Variable Quantum Random Numbers Generator Based on Vacuum Fluctuation

引用

Journal of Physics: Conference Series 2021年第2期1865卷

作者： Menglin Zhu Xiangyu Wang Bingjie Xu Song Yu Ziyang Chen Hong Guo State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications Beijing 100876 China State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronics and Center for Quantum Information Technology Peking University Beijing 100871 China Science and Technology on Communication Security Laboratory Institute of Southwestern Communication No. 6 Chuangye Road Chengdu 610041 China

The deployment of quantum random number generator in fiber optics is strongly limited in real world applications due to the size of the components and their cost. Here we present a quantum random number generator based on vacuum fluctuation using an optical homodyne detection in silicon photonic chip achieving minimum entropy/bit of 8.5 for 10 bits sample. The produced random numbers have passed all NIST randomness tests.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Fault Attack of SMS4 Based on Internal Collisions

引用

Journal of Physics: Conference Series 2020年第7期1486卷

作者： Renjie Zhu Qingyu Ou Fang Luo Department of Information Security Naval University of Engineering Wuhan Hubei 430000 China (Science and Technology on Communication Security Laboratory)

A fault attack of SMS4 based on internal collision is proposed. The method assumes that the attacker can attack under the condition of selecting plaintext, and adopts the byte-oriented random fault model to successfully recover the original key by injecting the fault in the first few rounds of the encryption algorithm of the SMS4. Theoretical analysis and experimental results show that the 60 fault injections can successfully recover the original key of the SMS4, with a probability of over 99%. If the attacker can control the location of fault injection, then only 16 fault injections are needed to successfully recover the original key of the SMS4. In general, 30 to 40 fault injections can successfully restore the original key.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Correction to: A biometric cryptosystem scheme based on random projection and neural network

引用

Soft Computing 2021年第11期25卷 7671-7671页

作者： Peng, Jialiang Yang, Bian Gupta, B. B. El-Latif, Ahmed A. Abd School of Data Science and Technology Heilongjiang University Harbin China Guangxi Key Laboratory of Cryptography and Information Security Guilin China Department of Information Security and Communication Technology Norwegian University of Science and Technology Gjøvik Norway Computer Engineering Department NIT Kurukshetra Kurukshetra India Department of Computer Science and Information Engineering Asia University Taichung Taiwan Department of Mathematics and Computer Science Faculty of Science Menoufia University Shebin El-Koom Egypt

A correction to this paper has been published: https://***/10.1007/s00500-021-05804-3

关键词：

来源：评论

学校读者我要写书评

暂无评论

Key Frame Extraction Algorithm for Surveillance Video Based on Golden Section

Key Frame Extraction Algorithm for Surveillance Video Based ...

引用

作者： Aodi Zhao Yi Lai Ying Liu Hanbing Leng School of Communication and Information Engineering Xi'an University of Posts and Telecommunications Key Laboratory of Electronic Information Application Technology for Scene Investigation Ministry of Public Security Key Laboratory of Spectral Technology Chinese Academy of Science

The traditional key frame extraction algorithm can't effectively segment the surveillance video, and it can't focus on the moving objects in the surveillance video data. In this paper, a key frame extraction algorithm based on golden section is proposed. The method first detects and tracks the moving target in the surveillance video, and calculates the entropy value of the foreground image. Secondly, the golden section in mathematical calculation is introduced to divide the sub-segment of the surveillance video, and the standard deviation of the foreground image entropy is used to measure the intra-frame similarity of the video sub-segments. If the intra-frame similarity is low, the frame at the golden section point is selected as the video key frame;if the difference within the video segment is large, golden section is continued until there is no significant difference in the video frames in all video sub-segments. in all the video *** experimental tests on a variety of surveillance video data and comparison with traditional algorithms, the experimental results show that the proposed algorithm effectively compresses the original surveillance video, and can extract the moving objects in the surveillance video more completely.

关键词： Surveillance video golden section key frame

来源：评论

学校读者我要写书评

暂无评论

A General 3D Geometry-Based Stochastic Model for Industrial IoT Environments

A General 3D Geometry-Based Stochastic Model for Industrial ...

引用

IEEE Globecom Workshops

作者： Yang Liu Cheng-xiang Wang Rong Dai Xin Guo Yu Yu National Mobile Communications Research Laboratory School Information of Science and Engineering Southeast University Nanjing China State Key Laboratory of Millimeter Waves Southeast University Nanjing China Ministerial Key Laboratory of Advanced Control for Light Industry Processes Jiangnan University Wuxi China Purple Mountain Laboratories Nanjing China School of Information and Communication Engineering Nanjing Institute of Technology Nanjing China

ISBN: (数字)9781728173078

ISBN: (纸本)9781728173085

Industrial Internet of things (IoT) environment is one of the typical scenarios in the beyond fifth generation (B5G) networks. In this paper, a general three dimensional (3D) geometry-based stochastic model (GBSM) is proposed for the industrial IoT environments. Typical channel parameters, such as the power, delay, azimuth angle of arrival (AAOA), azimuth angle of departure (AAOD), elevation angle of arrival (EAOA), elevation angle of departure (EAOD) are combined to model the channel impulse response (CIR). The spatial consistency of the parameter is achieved by the sum of sinusoids (SOS) method. The spatial non-stationarity is modeled by describing the birth and death of the clusters under the industrial environments. To support the broadband channel, the CIR is modeled at each bin of the whole spectrum and the frequency correlation of the parameters is taken into account. Extensive simulated and measured results validate the credibility of the proposed model.

关键词： Solid modeling Three-dimensional displays Correlation Stochastic processes Delays Broadband communication Industrial Internet of Things

来源：评论

学校读者我要写书评

暂无评论

Characterizing human collective behaviours of COVID-19 in Hong Kong

arXiv

引用

arXiv 2022年

作者： Du, Zhanwei Zhang, Xiao Wang, Lin Yao, Sidan Bai, Yuan Tan, Qi Xu, Xiaoke Pei, Sen Xiao, Jingyi Tsang, Tim K. Liao, Qiuyan Lau, Eric H.Y. Wu, Peng Gao, Chao Cowling, Benjamin J. WHO Collaborating Centre for Infectious Disease Epidemiology and Control School of Public Health Li Ka Shing Faculty of Medicine The University of Hong Kong Hong Kong Laboratory of Data Discovery for Health Hong Kong Science and Technology Park New Territories Hong Kong Department of Genetics University of Cambridge CambridgeCB2 3EH United Kingdom Singapore College of Information and Communication Engineering Dalian Minzu University Dalian China Department of Environmental Health Sciences Mailman School of Public Health Columbia University New YorkNY10032 United States Northwestern Polytechnical University Xi'An China

People are likely to engage in collective behaviour online during extreme events, such as the COVID-19 crisis, to express their awareness, actions and concerns. Hong Kong has implemented stringent public health and social measures (PHSMs) to curb COVID-19 epidemic waves since the first COVID-19 case was confirmed on 22 January 2020. People are likely to engage in collective behaviour online during extreme events, such as the COVID-19 crisis, to express their awareness, actions and concerns. Here, we offer a framework to evaluate interactions among individuals' emotions, perception, and online behaviours in Hong Kong during the first two waves (February to June 2020) and found a strong correlation between online behaviours of Google search and the real-time reproduction numbers. To validate the model output of risk perception, we conducted 10 rounds of cross-sectional telephone surveys from February 1 through June 20 in 2020 to quantify risk perception levels over time. Compared with the survey results, the estimates of the risk perception of individuals using our network-based mechanistic model capture 80% of the trend of people's risk perception (individuals who worried about being infected) during the studied period. We may need to reinvigorate the public by engaging people as part of the solution to live their lives with reduced risk. © 2022, CC BY-NC-ND.

关键词： Risk perception

来源：评论

学校读者我要写书评

暂无评论

Multi-RIS Aided 3D Secure Precise Wireless Transmission

arXiv

引用

arXiv 2020年

作者： Shen, Tong Cai, Wenlong Lin, Yan Zhang, Shuo Lin, Jinyong Shu, Feng Wang, Jiangzhou The School of Information and Computer Anhui Agriculture University 230036 China The School of Electronic and Optical Engineering Nanjing University of Science and Technology 210094 China The National Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing Aerospace Automatic Control Institute Beijing100854 China School of Information and Communication Engineering HaiNan University Hainan 570228 China The School of Engineering and Digital Arts University of Kent CanterburyCT2 7NT United Kingdom

In this paper, multiple reconfigurable intelligent surfaces (RIS) aided secure precise wireless transmission (SPWT) schemes are proposed in the three-dimensional (3D) wireless communication scenario. Unavailable direct path channels from transmitter to receivers are considered when the direct paths are obstructed by obstacles. Then, multiple RISs are utilized to achieve SPWT through the reflection path among transmitter, RISs and receivers in order to enhance the communication performance and energy efficiency simultaneously. First, a maximum-signal-to-interference-and-noise ratio (MSINR) scheme is proposed in a single user scenario. Then, the multi-user scenario is considered where the illegitimate users are regarded as eavesdroppers. A maximum-secrecy-rate (MSR) scheme and a maximum-signal-to-leakage-and-noise ratio (MSLNR) are proposed. The former achieves a better secrecy rate (SR) performance but incurs a higher complexity. The latter has a lower complexity than the MSR scheme with an SR performance loss. Simulation results show that both single-user scheme and multi-user scheme can achieve SPWT which transmits confidential message precisely to location of desired users. Moreover, MSLNR scheme has a lower complexity than the MSR scheme, while the SR performance is close to that of the MSR scheme. © 2020, CC0.

关键词： Transmitters

来源：评论

学校读者我要写书评

暂无评论

A Stochastic Coupling-Based Channel Impulse Response Matrix Model for Massive MIMO Channels

A Stochastic Coupling-Based Channel Impulse Response Matrix ...

引用

International Conference on Wireless communications and Signal Processing (WCSP)

作者： Rong Dai Yang Liu Cheng-Xiang Wang Yu Yu Xin Guo Ministerial Key Laboratory of Advanced Control for Light Industry Processes Jiangnan University Wuxi China State Key Laboratory of Millimeter Waves Southeast University Nanjing China National Mobile Communications Research Laboratory School of Information of Science and Engineering Southeast University Nanjing China Purple Mountain Laboratories Nanjing China School of Information and Communication Engineering Nanjing Institute of Technology Nanjing China

ISBN: (数字)9781728172361

ISBN: (纸本)9781728172378

A novel stochastic channel impulse response matrix (CIRM) model for massive multiple input multiple output (MI-MO) channels is proposed in this papen Under the framework of this proposed model, the CIRM can be modeled as a sum of couplings between the steering vectors at the base station (BS) end and the eigenbases at the mobile station (MS) side. The fading of the coupling between the steering vector and the eigenbase is modeled as Nakagami distribution. Furthermore, the closed form of the capacity is derived based on the proposed framework. Compared with the traditional Weibchselberger model, the proposed model has lower complexity. To validate the proposed model, extensive massive MIMO channel measurements are carried out in an indoor environment The results show that the new model provides a better fit to the measured results than Weibchselberger model. Finally, the closed form and PDF are validated by Monte Carlo realizations of the proposed model. This CIRM model can be used for massive MIMO design in future fifth-generation communication system design.

关键词： Wireless communication Signal processing Conferences

来源：评论

学校读者我要写书评

暂无评论

Conflict Detection of Device Linkage Rules in Smart Home Systems

Conflict Detection of Device Linkage Rules in Smart Home Sys...

引用

Chinese Automation Congress (CAC)

作者： Ye Fu Daojuan Zhang Chonghua Wang Xi Luo Wenxin Liu Tianjie Luo Fuyang Fang Cyber space Institute of Advanced Technology Guangzhou University Guangzhou China State Grid Key Laboratory of Information&Network Security Global Energy Interconnection Research Institute co. Ltd Beijing China China Industrial Control Systems Cyber Emergency Response Team Beijing China Information Science Academy China Electronics Technology Group Corporation Beijing China

ISBN: (数字)9781728176871

ISBN: (纸本)9781728176888

With the increasing types and functions of smart home devices, due to the lack of experience of users, they may cause unexpected errors and risks when configuring a large number of device linkage *** response to the above problems, in this paper, we propose an efficient conflict detection method to avoid unexpected ***, to reduce the complexity of subsequent rule conflict detection, we divide each rule into five categories according to its functions and characteristics. At the same time, we configure the priority, user rights, and execution area for each rule. Second, we filter out the rules of the same priority, user rights, and execution area. Third, we define five types of rule conflicts. Finally, the conflict detection algorithm is used to determine whether the filtered rules conflict with the rules in the corresponding database. We have created 379 non-conflicting rules in each type of rule storage database to detect whether the newly created rules conflict with them. Through experimental comparison, we find that our approach has more advantages than previous work in terms of performance and conflict detection types.

关键词： Couplings Actuators Smart homes Sensors Databases security Data mining

来源：评论

学校读者我要写书评

暂无评论

Weighted Linear Multiple Kernel Learning for Saliency Detection 2nd

Weighted Linear Multiple Kernel Learning for Saliency Detect...

引用

2nd EAI International Conference on Robotic Sensor Networks, ROSENET 2018

作者： Zhou, Quan Wu, Jinwen Fan, Yawen Zhang, Suofei Wu, Xiaofu Zheng, Baoyu Jin, Xin Lu, Huimin Latecki, Longin Jan National Engineering Research Center of Communications and Networking Nanjing University of Posts and Telecommunications Nanjing China State Key Laboratory for Novel Software Technology Nanjing University Nanjing China College of Information Engineering China University of Geosciences Wuhan China School of Internet of Things Nanjing University of Posts and Telecommunications Nanjing China National Engineering Research Center of Communications and Networking Nanjing University of Posts and Telecommunications Nanjing China Department of Cyber Security Beijing Electronic Science and Technology Institute Beijing China CETC Big Data Research Institute Co. Ltd. Guizhou Guiyang China Department of Mechanical and Control Engineering Kyushu Institute of Technology Kitakyushu Japan Department of Computer and Information Sciences Temple University PhiladelphiaPA United States

ISBN: (纸本)9783030177621

This paper presents a novel saliency detection method based on weighted linear multiple kernel learning (WLMKL), which is able to adaptively combine different contrast measurements in a supervised manner. Three commonly used bottom-up visual saliency operations are first introduced, including corner-surround contrast (CSC), center-surround contrast (CESC), and global contrast (GC). Then these contrast measures are fed into our WLMKL framework to produce the final saliency map. We show that the assigned weights for each contrast feature maps are always normalized in our WLMKL formulation. In addition, the proposed approach benefits from the advantages of the contribution of each individual contrast operation, and thus produces more robust and accurate saliency maps. The extensive experimental results show the effectiveness of the proposed model, and demonstrate the combination is superior to individual subcomponent. © 2020, Springer science and Business Media Deutschland GmbH. All rights reserved.

关键词： Center-surround contrast Corner-surround contrast Global contrast Multiple kernel learning Saliency detection

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：