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sensor network Structure Recognition Based on P-law

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Computer Systems Science & Engineering 2023年第8期46卷 1277-1292页

作者： Chuiju You Guanjun Lin Jinming Qiu Ning Cao Yundong Sun Russell Higgs School of Information Engineering Sanming UniversitySanming365004China School of Astronautics Harbin Institute of TechnologyHarbin150001China School of Mathematics and Statistics University College DublinDublinDublin 4Ireland

A sensor graph network is a sensor network model organized according to graph network *** unit and signal propagation of core nodes are the basic characteristics of sensor graph *** sensor networks,network structure recognition is the basis for accurate identification and effective prediction and control of node *** at the problems of difficult global structure identification and poor interpretability in complex sensor graph networks,based on the characteristics of sensor networks,a method is proposed to firstly unitize the graph network structure and then expand the unit based on the signal transmission path of the core *** method which builds on unit patulousness and core node signal propagation(called p-law)can rapidly and effectively achieve the global structure identification of a sensor graph *** from the traditional graph network structure recognition algorithms such as modularity maximization and spectral clustering,the proposed method reveals the natural evolution process and law of graph network subgroup *** results confirm the effectiveness,accuracy and rationality of the proposed method and suggest that our method can be a new approach for graph network global structure recognition.

关键词： sensor network graph network P-law unit subgroup structure recognition

Three-Dimension Localization of Wideband Sources Using sensor network

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Chinese Journal of Electronics 2017年第6期26卷 1302-1307页

作者： ZHANG Yong HE Peiyu PAN Fan School of Electronics and Information Engineering Sichuan University

Usually source localization using sensor networks requires many sensors to localize a few number of sources, and it is still very troublesome to deal with coherent sources. When the three-dimensional(3-D) space are considered, the localization will become more difficult.A new approach is proposed to localize 3-D wideband coherent sources based on distributed sensor network, which consists of two nodes and each node contains only two sensors. Direction-of-arrival(DOA) estimation is performed at each node by employing a new noise subspace *** the pattern matching idea and the prior geometrical information of sources, a cost function is constructed to estimate the rough positions. A rotational projection algorithm is proposed to estimate the heights of sources and correct the rough positions, and consequently the localization of 3-D sources could be achieved. Numerical examples are provided to demonstrate the effectiveness of this approach.

关键词： Part principal angle free(P2AF) subspace Wideband coherent DOA sensor network 3-D localization

Body-area sensor network featuring micropyramids for sports healthcare

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Nano Research 2023年第1期16卷 1330-1337页

作者： Shenglong Wang Weili Deng Tao Yang Guo Tian Da Xiong Xiao Xiao Hongrui Zhang Yue Sun Yong Ao Junfeng Huang Jun Chen Weiqing Yang Key Laboratory of Advanced Technologies of Materials(Ministry of Education) School of Materials Science and EngineeringSouthwest Jiao tong UniversityChengdu 610031China Department of Bioengineering University of CaliforniaLos AngelesLos AngelesCA 90095USA

Monitoring physiological signals of the human body can provide extremely important information for sports healthcare,preventing injuries and providing efficient guidance for individual ***,the signals related to human healthcare involve both subtle and vigorous signals,making it difficult for a sensor to satisfy the full-scale monitoring at the same ***,a novel conductive elastomer featuring homogeneously micropyramid-structured PDMS/CNT composite is used to fabricate highperformance piezoresistive sensors by a drop-casting *** from the significant increase in the contact area of microstructure during deformation,the flexible sensor presents a broad detection range(up to 185.5 kPa),fast response/recovery time(44/13 ms),ultrahigh sensitivity(242.4 kPa–1)and excellent durability over 8,000 *** a proof of concept,the as-fabricated pressure sensor can be used for body-area sports healthcare,and enable the detection of full-scale pressure *** the fabulous sensing performance,the sensor may potentially become promising in personal sports healthcare and telemedicine monitoring.

关键词： pressure sensor pyramidal microstructure sports healthcare sensor network broad detection range high sensitivity

On distributed Kalman filter based state estimation algorithm over a bearings-only sensor network

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Science China(Technological Sciences) 2023年第11期66卷 3174-3185页

作者： LIANG ChenXu XUE WenChao FANG HaiTao ZHANG Ran The Key Laboratory of Systems and Control National Center for Mathematics and Interdisciplinary SciencesAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Astronautics Beihang UniversityBeijing 100083China

This paper studies the distributed state estimation problem for a class of discrete-time linear time-varying systems over a bearingsonly sensor network.A novel fusion estimation algorithm of the distance between the target and each sensor is constructed with the mean square error matrix of corresponding estimation being timely ***,the refined estimation of distance is presented by minimizing the mean square error ***,the distributed Kalman filter based state estimation algorithm is proposed based on the refined distance *** is rigorously proven that the proposed method has the consistency and ***,numerical simulation results show the effectiveness of our methods.

关键词： bearings-only measurements sensor network Kalman filter distributed filter

PIR-based data integrity verification method in sensor network

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Journal of Central South University 2014年第10期21卷 3883-3888页

作者： Yong-Ki Kim Kwangnam Choi Jaesoo Kim JungHo Seok Korea Institute of Science and Technology Information 245 DaehangnoYuseong Daejeon 305-806 Korea

Since a sensor node handles wireless communication in data transmission and reception and is installed in poor environment, it is easily exposed to certain attacks such as data transformation and sniffing. Therefore, it is necessary to verify data integrity to properly respond to an adversary's ill-intentioned data modification. In sensor network environment, the data integrity verification method verifies the final data only, requesting multiple communications. An energy-efficient private information retrieval(PIR)-based data integrity verification method is proposed. Because the proposed method verifies the integrity of data between parent and child nodes, it is more efficient than the existing method which verifies data integrity after receiving data from the entire network or in a cluster. Since the number of messages for verification is reduced, in addition, energy could be used more efficiently. Lastly, the excellence of the proposed method is verified through performance evaluation.

关键词： data integrity verification private information retrieval sensor network

Mobile cluster rekeying in tracking sensor network

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Journal of Harbin Institute of Technology(New Series) 2006年第4期13卷 409-414页

作者：王佳昊秦志光耿计李志军 College of Computer Science and Engineering University of Electronic Science and Technology of China

The wireless sensor network has a broad application in target tracking and locating, and is especially fit for military detection or guard. By arranging the sensor nodes around the target, this article establishes a tracking eluster which can follow the target logically, process data on the target and report to the sink node, thus achieving the tracking function. To improve the security, this article proposes a mobile cluster rekeying protocol （MCRP） to manage the tracking elusterg season key. It is based on a random key predistribution algorithm （RKP） , which is composed of a multi-path reinforcement scheme, a q-composition scheme and a oneway cryptographie hash function.

关键词： sensor network MCRP RKP tracking cluster soft deplovment

Design of maximizing homogeneous and heterogeneous clustered sensor network lifetime

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Journal of Harbin Institute of Technology(New Series) 2009年第6期16卷 789-798页

作者：金彦亮蒋轶凡陈惠民刘海涛 Dept. of Communication Engineering Shanghai University SIMIT

Aimed at the problem of unbalanced energy existed in sensor networks, the clustered method is employed to enhance the efficient utilization of limited energy resources of the deployed sensor nodes. In this paper, we describe the network lifetime as a function of the communication and data aggregation energy consumption and analyze the lifetime of different transmission schemes in the homogeneous and heterogeneous sensor networks. The analysis carried out in this paper can provide the guidelines for network deployment and protocol design in the future applications.

关键词： network lifetime sensor network homogeneous heterogeneous

BLIND CHANNEL AND SYMBOL JOINT ESTIMATION IN COOPERATIVE MIMO FOR WIRELESS sensor network

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Journal of Electronics(China) 2008年第4期25卷 439-444页

作者： Yan Zhenya Zheng Baoyu Institute of Signal Processing ＆ Transmission Nanjing University of Posts and Telecommunications Nanjing 210003 China

In this paper,application of Sequential Quasi Monte Carlo(SQMC)to blind channel andsymbol joint estimation in cooperative Multiple-Input Multiple-Output(MIMO)system is proposed,which does not need to transmit training symbol and can save the power and channel ***,an improved version of SQMC algorithm by taking advantage of current received signal *** results show that the SQMC method outperforms the Sequential Monte Carlo(SMC)methods,and the incorporation of current received signal improves the performance of theSQMC obviously.

关键词： Cooperative Multiple-Input Multiple-Output (MIMO) sensor network Sequential Quasi Monte Carlo (SQMC)

Relationship between office workers’staying and workstation attributes in a non-territorial office using ultra wide band sensor network

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Frontiers of Structural and Civil Engineering 2010年第4期4卷 438-449页

作者： Xinnan ZHANG Takashi IZATO Junzo MUNENOTO Daisuke MATSUSHITA Tetsu YOSHIDA Department of Architecture Kyoto UniversityKyoto 615-8540Japan Architecture&Engineering Division TAISEI CorporationTokyo 163-0606Japan Department of Architecture Okayama University of ScienceOkayama 700-0005Japan Department of Architecture Faculty of EngineeringKyoto UniversityKyoto 615-8540Japan

This paper investigates the staying and moving characteristics of office workers in a non-territorial office using an ultra wide band(UWB)impulse radio sensor *** differences between office workers’staying and moving are clarified according to the individual workstation type that they *** study determines the characteristics of each type of *** clarifying office workers’preference for staying and moving with regard to individual workstation types and office worker post,the reasons why office workers in different posts tended to select different types of workstations were ***,leaders tended to select workstations at the“inner meeting corner side”most frequently,as they had a greater need to stay in other *** contrast,ordinary staff needed to visit office workers in other areas less often,and as such,they tended to select individual workstations at the“middle meeting corner side.”Barring this,they tended to select individual workstations at the“middle corridor side”or“outer-meeting corner side.”Temporary staff members had little need to visit or stay at other places so they tended to select individual workstations at the“window side,”which is seldom visited or stayed at by other office workers and they could be disturbed less often from their solo work.

关键词： workplace non-territorial office staying behavior ultra wide band(UWB) sensor network