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An Energy-saving Algorithm for Wireless Sensor networks Based on network Coding and Compressed Sensing

中国通信 2014年第z1期11卷 171-178页

作者： QIN Tuanfa MENG Yunfan LI Liangliang WAN Haibin ZHANG Dongmei School of Computer and Electronic Information Guangxi University Nanning 530004 China Guangxi Key Laboratory of Multimedia Communications and Network Technology Guangxi University Nanning 530004 China Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 China National Engineering Laboratory for Disaster Backup and Recovery Beijing 100876 China

An energy-saving algorithm for wireless sensor networks based on network coding and compressed sensing （CS-NCES） is proposed in this paper. Along with considering the correlations of data spatial and temporal, the algorithm utilizes the similarities between the encoding matrix of network coding and the measurement matrix of compressed sensing. The source node firstly encodes the data, then compresses the coding data by cot-npressed sensing over finite fields. Compared with the network coding scheme, simulation results show that CS-NCES reduces the energy consumption about 25.30/0-34.50/0 and improves the efficiency of data reconstruction about 1.56%- 5.98%. The proposed algorithm can not only enhance the usability of network coding in wireless sensor networks, but also improve the network performance.

关键词： wireless sensor networks network coding compressed sensing deterministic matrix network energy-efficiency

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Identification and addressing of internet of things based on distributed ID

Identification and addressing of internet of things based on...

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作者： Ma, Rui Liu, Yue Ma, Ke Wang, Xu An Beijing Key Laboratory of Software Security Engineering Technology School of Software Beijing Institute of Technology Beijing China Internet Center Institute of Communication Standard Research China Academy of Information and Communication Technology Beijing China Key Laboratory of Information and Network Security Engineering University of CAPF Xi’an Shanxi China

Identification and addressing the entity which accesses the internet through the wireless network with various short distance transmission protocols is a key issue. To solve the problem, by combining with the existing identification and addressing technology of the internet and the IOT, this paper proposes a method based on distributed ID. This method can be divided into two stages. It first designs the structure of distributed ID. Using the distributed address allocation algorithm, it implements the automatic allocation of the distributed ID as well as the distributed ID resolution among the global IOT. After that, an addressing scheme is designed to meet demands of the IOT addressing. It first defines the structure of addressing and then implements the routing addressing algorithm which combines the cluster-tree algorithm with the ad hoc on-demand distance vector routing algorithm. This scheme could improve the routing efficiency as well as achieve lower cost, lower energy consumption and higher reliability of the addressing. By the simulation on NS-2 platform, the experimental results highlight the feasibility and effectiveness of the proposed method from three aspects: the correctness of identification allocation, the effectiveness of addressing scheme, and the stability of data transmission. Copyright © 2020 Inderscience Enterprises Ltd.

关键词： Internet of things

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Microbiologically Influenced Corrosion Behavior of Fe_(40)(CoCrMnNi)_(60) and Fe_(60)(CoCrMnNi)_(40) Medium Entropy Alloys in the Presence of Pseudomonas Aeruginosa

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Acta Metallurgica Sinica(English Letters) 2023年第3期36卷 379-390页

作者： Weiwei Chang Yangyang Li Huaibei Zheng Hongchang Qian Dawei Guo Shuyuan Zhang Yuntian Lou Chi Tat Kwok Lap Mou Tam Dawei Zhang National Materials Corrosion and Protection Data Center Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China BRI Southeast Asia Network for Corrosion and Protection(MOE) Shunde Graduate School of University of Science and Technology BeijingFoshan 528399China State Key Laboratory of Metal Material for Marine Equipment and Application Anshan 114002China Department of Electromechanical Engineering University of MacaoMacao 999078China Institute for the Development and Quality Macao 999078China

In this work,the microbiologically influenced corrosion(MIC)of Fe_(40)(CoCrMnNi)_(60) and Fe_(60)(CoCrMnNi)_(40) medium entropy alloys(MEAs)induced by Pseudomonas aeruginosa(***)was *** behaviors during 14 days of immersion in sterile and ***-inoculated culture media are *** sterile conditions,both MEAs exhibited good corrosion resistance against the culture medium *** the presence of ***,the pitting corrosion of MEAs was *** results of inductively coupled plasma‒mass spectrometry(ICP‒MS)and potentiodynamic polarization tests showed that the presence of *** promoted the selective dissolution of passive film and accelerated the corrosion of *** results of X-ray photoelectron spectroscopy(XPS)and Mott-Schottky measurements further demonstrated the degradation effect of *** on the passive *** with Fe_(60)(CoCrMnNi)_(40),Fe_(40)(CoCrMnNi)_(60) manifested better resistance to the MIC caused by ***,which may be attributed to more Cr oxides and fewer Fe oxides of the passive film.

关键词： Microbiologically influenced corrosion Medium entropy alloys Pseudomonas aeruginosa

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Research on trusted bootstrap based on the universal smart card 7th

Research on trusted bootstrap based on the universal smart c...

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7th International Conference on the Theory, Technologies and Applications of Trusted Systems, INTRUST 2015

作者： Yan, Lin Zhang, Jianbiao College of Computer Science Beijing University of Technology Beijing China Beijing Key Laboratory of Trusted Computing Beijing China National Engineering Laboratory for Critical Technologies of Information Security Classified Protection Beijing China

ISBN: (纸本)9783319315492

The trusted boot is a hot spot in trusted computing field. User’s identity authentication and trusted measurement are used to deal with security threats. But it is difficult to implement the general trusted boot based on hardware, which can be bypassed easily by software. In order to solve the above problem, a scheme of trusted boot is presented based on the universal smart card. It does not change the hardware and the firmware of the smart card and the terminal device. The core method combines user’s identity authentication with trusted measurement. It binds user’s identity, smart card and terminal device to ensure the trusted boot of terminal device. The trusted computing mechanism can be extended from power on to the application layer. Ultimately, experiments prove the security of boot and simplification of the implementation. © Springer International Publishing Switzerland 2016.

关键词： Smart cards

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RbacIP: A RBAC-based method for intercepting and processing malicious applications in android platform 7th

RbacIP: A RBAC-based method for intercepting and processing ...

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7th International Conference on the Theory, Technologies and Applications of Trusted Systems, INTRUST 2015

作者： Lin, Li Ni, Jian Hu, Jian Zhang, Jianbiao College of Computer Science Beijing University of Technology Beijing China Beijing Key Laboratory of Trusted Computing Beijing China National Engineering Laboratory for Critical Technologies of Information Security Classified Protection Beijing China

ISBN: (纸本)9783319315492

With the rapid development of Android-based smart phones and pads, android applications show explosive growth. Because third-party application market regulation is lax, many normal applications are embedded malicious code and then many security issues occur. The existing antivirus software cannot intercept malicious behaviors from those repackaged applications in many cases. To solve these problems, we propose a new method called RbacIP, which integrates RBAC into intercept and disposal process of malicious android applications. In RbacIP, the malicious behaviors of applications are monitored by inserting Linux kernel function call dynamically. Exploiting the Netlike technology, the information of malicious behaviors are feedback from the kernel layer to the user layer. On the user layer, depending on the roles assigned, android applications are authorized to the corresponding permissions. According to the characteristics of RBAC, it can achieve the minimum authorization for malicious applications. Meanwhile, to balance the user experience and his privacy protection needs, users are allowed to make fine-grained decision based on RBAC policy, rather than permit or prohibit. Finally, we implemented RbacIP in real android platform. Comprehensive experiments have been conducted, which demonstrate the effectiveness of the proposed method by the comparison with traditional HIPS systems at the malicious programs detection performance and resource consumption. © Springer International Publishing Switzerland 2016.

关键词： Android (operating system)

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Epileptic Spike Detection Based on Deep Learning 23

Epileptic Spike Detection Based on Deep Learning

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9th International Conference on Computing and Artificial Intelligence, ICCAI 2023

作者： Duan, Lijuan Cui, Yuanqi Wang, Yao Wang, Zeyu Cao, Min Qiao, Yuanhua Faculty of Information Technology Beijing University of Technology Beijing Key Laboratory of Trusted Computing National Engineering Laboratory for Critical Technologies of Information Security Classified Protection Beijing China College of Applied Science Beijing University of Technology University Beijing China

ISBN: (纸本)9781450399029

Epilepsy is a chronic disease with high prevalence and high disease burden. Electroencephalogram (EEG) is one of the most important tools for diagnosing epilepsy. Detection of epileptic spikes from EEG can effectively aid the diagnosis of epilepsy but it is also a time-consuming and laborious process for neurologists, which can only be addressed by automatic spike detection methods. However, existing approaches are limited by the simplistic nature of conventional machine learning algorithms. The work researched about how human experts identify spikes and over-parameterized the process into a deep neural network named temporal-frequential and multi-order difference fusion (TeFreDiA) model which can accurately detect epileptic *** model was evaluated on data collected from 7 subjects with ten-fold cross-validation. Given an average accuracy and sensitivity of 95.64% and 96.89%, the model can be utilized to aid the diagnosis of epilepsy. © 2023 Copyright held by the owner/author(s).

关键词： Electroencephalography

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Angle-resolved photoemission study of NbGeSb with non-symmorphic symmetry

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Chinese Physics B 2024年第2期33卷 464-470页

作者：马欢谭宁吴徐传李满王义炎路洪艳夏天龙王善才 Department of Physics Key Laboratory of Quantum State Construction and Manipulation(Ministry of Education)Renmin University of ChinaBeijing 100872China Beijing Key Laboratory of Opto-Electronic Functional Materials&Micro-Nano Devices Renmin University of ChinaBeijing 100872China School of Information Network Security People’s Public Security University of ChinaBeijing 100038China Institute of Physical Science and Information Technology Anhui UniversityHefei 230601China School of Physics and Physical Engineering Qufu Normal UniversityQufu 273165China

We investigate the electronic structure of NbGeSb with non-symmorphic *** employ angle-resolved photoemission spectroscopy(ARPES)to observe and identify the bulk and surface states over the Brillouin *** utilizing high-energy photons,we identify the bulk Fermi surface and bulk nodal line along the direction X–R,while the Fermi surface of the surface state is observed by using low-energy *** observe the splitting of surface bands away from the high-symmetry point *** density functional theory calculations on bulk and 1 to 5-layer slab models,as well as spin textures of NbGeSb,verify that the band splitting could be attributed to the Rashba-like spin–orbit coupling caused by space-inversion-symmetry breaking at the *** splitted surface bands cross with each other,forming two-dimensional Weyl-like crossings that are protected by mirror *** findings provide insights into the two-dimensional topological and symmetry-protected band inversion of surface states.

关键词： non-symmorphic symmetry nodal line splitting of surface bands angle-resolved photoemission spectroscopy

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An efficient mutation-based fuzz testing approach for detecting flaws of network protocol

An efficient mutation-based fuzz testing approach for detect...

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2012 International Conference on Computer Science and Service System, CSSS 2012

作者： Zhang, Zhao Wen, Qiao-Yan Tang, Wen State Key Laboratory of Network and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China IT Security Cooperate Technology Siemens Ltd. China Beijing 100102 China

ISBN: (纸本)9780769547190

security flaws existed in protocol implementations might be exploited by malicious attackers and the consequences can be very serious. Therefore, detecting vulnerabilities of network protocol implementations is becoming a hot research topic recently. However, protocol security test is a very complex, challenging and error-prone task, as constructing test packets manually or randomly are not practical. This paper presents an efficient mutation-based approach for detecting implementation flaws of network *** with other protocol testing tools, our approach divides the procedure of protocol testing into many phases, and flexible design can cover many testing cases for the protocol implementations under testing, and could apply for testing various protocol implementations quite easily. Besides, this approach is more comprehensible that makes the protocol security test easier to carry out. To assess the usefulness of this approach, several experiments are performed on four FTP server implementations and the results showed that our approach can find flaws of protocol implementation very easily. The method is of the important application value and can improve the security of network protocols. © 2012 IEEE.

关键词： Testing

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A scheme of trust management system for P2P network

A scheme of trust management system for P2P network

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12th International Conference on Advanced Communication technology: ICT for Green Growth and Sustainable Development, ICACT 2010

作者： Liang, Binbin Gu, Lize Sun, Bin Yang, Yixian Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications China Key Laboratory of Network and Information Attack and Defence Technology of MOE Beijing University of Posts and Telecommunications China

ISBN: (纸本)9788955191455

P2P network has become an important branch of Internet recently, with the significant advantages of full resource utilization, dynamics, openness and high scalable, which helps it achieve wide applications. But security and trust have also become urgent problems for a P2P network due to its openness and anonymousness. Most of the current schemes rely on some trust models, but the research in systematic managing scheme is scarce. Consequently, we propose a scheme of constructing trust management systems in a P2P network here.

关键词： Peer to peer networks

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Identification of frequency-hopping spread spectrum signals using SVMs with wavelet kernels

Identification of frequency-hopping spread spectrum signals ...

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2nd International Workshop on Intelligent Systems and Applications, ISA2010

作者： Sun, Na Zhou, Yajian Yang, Yixian Information Security Center State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China Key Laboratory of Network and Information Attack and Defense Technology of MOE Beijing University of Posts and Telecommunications Beijing 100876 China

ISBN: (纸本)9781424458745

This paper proposes a novel method of using wavelet kernel functions in Support Vector Machines (SVMs), and this method is applied to identification of individual communication transmitter which works in frequency-hopping spread spectrum modulation. The adoption of kernel function can improve the classification rate. The experimental results show how the recognition rates change with the parameters of wavelet kernel function. In a certain specific range, the classification rates maintain at a high level. ©2010 IEEE.

关键词： Support vector machines

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