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Unscented Kalman consensus filters based on Rauch-Tung-Striebel Smoother

Journal of Computational Information Systems 2014年第10期10卷 4159-4167页

作者： Zou, Juan Pei, Tingrui Zhou, Yan Long, Jiachuan College of Information Engineering Xiangtan University Xiangtan 411105 China Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Xiangtan 411105 China

One of the fundamental problems in sensor networks is the target's state estimation. The Unscented Kalman consensus filter (C-UKF) makes use of the consensus protocol and applies it to an optimal filter of nonlinear state-space models. It does this in order to acquire a consensus of n sensor Kalman filters' measurements, but the estimates of C-UKF are dispersed for a relatively long period. In this study, a new Unscented Kalman consensus filter based on Rauch-Tung-Striebel Smoother (C-URTS) is proposed. This new algorithm and Unscented Kalman consensus filter (C-UKF) differ in their reliance on a traditional Unscented Kalman filter. Unscented Kalman consensus filters are used to apply state estimates for the initial smooth value of URTS. The C-URTS uses a neighbor's information to reach a consensus, and then runs a backward smoother with the obtained Kalman consensus filters' value for better accuracy. Simulation results are provided to demonstrate the effectiveness of C-URTS in sensor networks. 1553-9105/Copyright © 2014 Binary Information Press.

关键词： Sensor networks

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Congestion control strategy based on probability selection in delay tolerant mobile sensor network

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Journal of Information and Computational Science 2014年第14期11卷 5121-5130页

作者： Wang, Bingting Hu, Yanjun Liang, Hui Lin, Qibin Shi, Yonghua Wang, Xianbing School of Electronic and Electrical Engineering Chuzhou University Chuzhou China Key Laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University Hefei China School of Information Science & Technology Southwest Jiaotong University Chengdu China

We analyzed the relationship between packet validity and encounter probability as well as the relationship between packet validity and remaining lifetime. Then we proposed the congestion control strategy based on probability selection, which implements the operations of congestion detection and congestion avoidance. When node buffer is fully occupied and needs to store a new packet, it will look for the packets whose remaining lifetime is lower than the threshold T, and then drop the packet with minimum encounter probability. If there is no packet whose remaining lifetime is lower than T, the packet with the shortest remaining lifetime will be dropped. Simulation results show that this congestion control strategy improves the performances of delivery probability, average delay and overhead ratio compared with four kinds of congestion control strategies. 1548-7741/Copyright © 2014 Binary Information Press

关键词： Probability

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A hybrid artificial fish-school optimization algorithm for solving the quadratic assignment problem

A hybrid artificial fish-school optimization algorithm for s...

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International Conference on Natural Computation (ICNC)

作者： Ziqiang Li Yang Yi Qiwei Yang School of Information and Engineering Xiangtan University Xiangtan China Key Laboratory of Intelligent Computing & Information Processing of Ministry of Education Xiangtan University Xiangtan China

The quadratic assignment problem (QAP) is a classic combinatorial optimization problem, which is of the NP-hard nature. In this paper, a hybrid artificial fish school optimization algorithm (HAFSOA) is proposed. In HAFSOA, the heuristic information is used in constructing some better initial individuals and its search ability of the global optimal solution is improved by a combination of the modified fish school optimization and differential evolution. In addition, by taking different visual distances for three behaviors: preying, clustering and following, the convergence speed of the proposed HAFSOA is speeded up. Many QAP experimental results show that the proposed HAFSOA can solve QAP better.

关键词： Marine animals Optimization Visualization Production facilities educational institutions Clustering algorithms Heuristic algorithms

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Informative gene selection using the Algebraic Connectivity Strength of Point and Scoring Criteria

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Chinese Science Bulletin 2013年第6期58卷 657-661页

作者： WANG Nian SU LiangLiang TANG Jun YE AiXia Key Laboratory of Intelligent Computing & Signal Processing Ministry of EducationAnhui University School of Electronics and Information Engineering Anhui University

This paper presents a novel method that integrates the Algebraic Connectivity Strength of Point(ACSP) and Scoring Criteria to identify genes associated with tumor ***,for each gene,the ACSP is used to identify reliable expression levels of the gene in all the *** informative genes are then selected using Scoring Criteria based on these reliable expression ***,the Support Vector Machine(SVM) classifier is used to classify the two datasets of gene expression *** results show that the informative genes selected by the proposed method have higher credibility than those selected by Scoring Criteria alone.

关键词：基因选择评分标准信息化强度连通代数基因表达谱支持向量机

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A Full-Rate and Low-Detection Complexity Cooperative Transmission Scheme Based on Distributed Space-Time-Frequency Code Design

A Full-Rate and Low-Detection Complexity Cooperative Transmi...

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2013 IEEE 4th International Conference on Software Engineering and Service Science

作者： Hongyu Fang Ruzi Li Li Wang Xiaohui Li Key Lab of Intelligent Computing and Signal Processing of Ministry of Education Anhui University

ISBN: (纸本)9781467349994

The cooperative transmission schemes based on the amplify and forward（AF） mode have the defect of low transmission rate and the exiting full-rate cooperative transmission schemes based on space-time code design have the defect of high detection ***,this paper makes the best of linear constellation precoding（LCP） technique and cyclic delay diversity（CDD） technique,and adopts the nonorthogonal amplify and forward（NAF） mode,finally proposes a new full-rate wireless cooperative transmission scheme based on space-time-frequency code *** with the cooperative transmission schemes that only pursue the transmission rate or the BER performance,this new scheme can apply to multi-relay scenario,and has the advantages of simple structure,low signal detection complexity that does not increases with the number of relay *** of above makes the real-time data transmission service of high quality come to be possible.

关键词： cooperative space-time-frequency full-rate lowdetection complexity

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The Low-Power and Long-Distance System Based on Wireless Sensor Networks

The Low-Power and Long-Distance System Based on Wireless Sen...

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IEEE International Symposium on Dependable, Autonomic and Secure computing (DASC)

作者： Liang Liu Yanjun Hu Hua Qian Xuming Pei Key laboratory of Intelligent Computing & Signal Processing Ministry of Education Anhui University Hefei P.R. China CAS Shanghai Research Center for Wireless Communications SIMIT Shanghai P.R. China

With the developing of low-power wireless techniques such as the micro-sensors, analog and digital electronic technology and radio frequency technology, different kinds of wireless sensor networks are widely used in the field of military, civil, medical and so on. However, in practical applications, the low-power consumption and long-distance have not been well achieved in the wireless sensor networks. In this paper, a low-power and long-distance system based on wireless sensor networks is proposed. The system model consists of two parts: the hardware includes server node, client nodes and ARM boards. The software mainly handle the analysis and construction of the communication frame as well as data analysis and processing and then the data information is processed to report to the server. We can reduce the energy consumption and increase the transmission distance by the combined application of hardware and software. The system can be used in different occasions and does have a grand application prospect.

关键词： Wireless sensor networks Hardware Universal Serial Bus Wireless communication Web servers

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Substrate integrated waveguide filter with improved stopband performance using LTCC technology

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Progress In Electromagnetics Research C 2014年 54卷 155-162页

作者： Zhang, Ping-Juan Li, Min-Quan College of Mathematics Physics and Information Engineering Anhui Science and Technology University Chuzhou233100 China Key Laboratory of Intelligent Computation and Signal Processing Ministry of Education Anhui University Hefei230039 China

A novel multi-layer third-order substrate integrated waveguide (SIW) bandpass filter with improved lower stopband performance is proposed. TE201-mode in folded-SIW cavity is utilized to implement negative cross coupling, and the TE101-mode is taken as a non-resonating node (NRN) for implementing bypass coupling. A circular aperture etched on the middle metal layer is used to realize coupling between source and the second SIW cavity. Then, three transmission zeros located below the passband can be obtained to improve stopband attenuation. Meanwhile, better spurious suppression performance above passband is achieved. A filter sample is designed and fabricated with multi-layer low-temperature co-fired ceramic (LTCC) technology. The measured S-parameters agree well with the simulated ones, with its predicted good performance. © 2014 Electromagnetics Academy. All rights reserved.

关键词： Substrate integrated waveguides

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Queue-based privacy-preserving data aggregation scheme for wireless sensor networks

Queue-based privacy-preserving data aggregation scheme for w...

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2014 International Conference on Communication Technology and Application(CTA2014)

作者： X.Y.Zhu L.Wang Department of Computer Science Hengyang Normal University College of Information Engineering Xiangtan University Key Laboratory of Intelligent Computing & Information Processing(Xiangtan University) Ministry of Education

ISBN: (纸本)9781845649302

In this paper, we propose a novel queue-based privacy-preserving data aggregation scheme for additive aggregation function. In the scheme, sensor nodes are divided into clusters in a distributed way first, and then, in each cluster, cluster members will form a queue and adopt a new queue-based privacy-preserving scheme to send data for aggregation upon the cluster head's request. We evaluate our scheme in terms of overheads, capacity of privacy-preservation, and data aggregation accuracy. The results show that our scheme is efficient and reasonable.

关键词： privacy preservation data aggregation wireless sensor network

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Recognition algorithm for plant leaves based on adaptive supervised locally linear embedding

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International Journal of Agricultural and Biological Engineering 2013年第3期6卷 52-57页

作者： Yan Qing Liang Dong Zhang Dongyan Wang Xiu Key Laboratory of Intelligent Computing&Signal Processing Ministry of EducationAnhui UniversityHefei 230039China Beijing Research Center for Information Technology in Agriculture Beijing 100097China

Locally linear embedding(LLE)algorithm has a distinct deficiency in practical *** requires users to select the neighborhood parameter,k,which denotes the number of nearest neighbors.A new adaptive method is presented based on supervised LLE in this article.A similarity measure is formed by utilizing the Fisher projection distance,and then it is used as a threshold to select *** samples will produce different k adaptively according to the density of the data *** method is applied to classify plant *** experimental results show that the average classification rate of this new method is up to 92.4%,which is much better than the results from the traditional LLE and supervised LLE.

关键词： supervised locally linear embedding manifold learning Fisher projection adaptive neighbors leaf recognition Precision Agriculture

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Spectral clustering based on the edge betweenness dissimilarity matrix for community detection

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Journal of Information and Computational Science 2014年第11期11卷 3929-3939页

作者： Pei, Tingrui Cao, Yuxin Li, Zhetao Choi, Young-June College of Information Engineering Xiangtan University Xiangtan China Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education Xiangtan University Xiangtan China Department of Information and Computer Engineering Ajou University Suwon Korea Republic of

As an important global geometric quantity, edge betweennesses can reflect the impact of corresponding edges in the entire network, which have a very strong practical significance. However, edge betweenness ignores the relationship between the vertices which connected indirectly with the edge. This paper first puts forward a dissimilarity matrix based on a novel edge betweenness, and applies it to a spectral clustering algorithm and finally, in order to detect the community structure in complex networks with this improved algorithm, we use a correction step which is based on the gravitation force of the community. This algorithm has been tested on computer-generated networks and typical real world networks. Compared to GN, PBD, GK and DA, the proposed algorithm possesses an apparent advantage. ©2014 Binary Information Press

关键词： Complex networks

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