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IEEE Global Communications Conference

作者： Ibo Ngebani Yabo Li Xiang-Gen Xia Haider Sami Ahmed Minjian Zhao Department of Information Science and Electrical Engineering Zhejiang Provincial Key Laboratory of Information Network Technology Zhejiang University Department of Electrical and Computer Engineering University of Delaware

ISBN: (纸本)9781479913510

Vector Orthogonal Frequency Division Multiplexing (V-OFDM) for single transmit antenna systems is a generalization of OFDM where Single-Carrier Frequency Domain Equalization (SC-FDE) and OFDM are two special cases. It has been shown to be able to collect multipath diversity and thus generally outperforms OFDM. The performance of OFDM under phase noise has been extensively studied in literature. These effects can be summarized as introducing a Common Phase Error (CPE) and Inter Carrier Interference (ICI) resulting in poor performance. The performance of V-OFDM under phase noise still remains uninvestigated and in this paper it is shown that phase noise in V-OFDM systems leads to a Common Vector Block Phase Error (CVBPE) as well as an Inter Vector Block Carrier Interference (IVBCI) effect. Both of these effects are detrimental to the performance of a V-OFDM system. An exact expression for the Signal to Interference Noise Ratio (SINR) for a V-OFDM system is derived and found to agree closely with simulation results.

关键词： CPE ICI OFDM Phase Noise SC-FDE Vector OFDM

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A Recurrence method of attribute reduction based on rough set

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ICIC Express Letters 2013年第3 B期7卷 1025-1030页

作者： Zhang, Tao Lu, Jing Chen, Nan Gao, Zhi College of Information Engineering Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China College of Foreign Languages Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China Institute of Electrical Engineering Yanshan University No. 438 Hebei Ave. Qinhuangdao 066004 China

According to the classical rough set, the attribute reduction set may be far from satisfactory due to the non-existence of core in the attribute reduction process of decision table. Aiming at this issue, this paper puts forward a recurrence method of attribute reduction;first find out the starting attributes with the highest division as the basic one, and then add the remaining attributes gradually to refine the undivided equivalence class until the non-existence of the samples which must be separated. The paper theoretically proved the relation between the traditional method and recurrence method of attribute reduction on the existence of core. The reliability of the new method was analyzed and illustrated by experiments. © 2013 ICIC International.

关键词： Decision tables

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Multi-sensor data fusion and target location in pipeline monitoring and a pre-warning system based on multi-seismic sensors

Multi-sensor data fusion and target location in pipeline mon...

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International Conference on Pipelines and Trenchless Technology 2012: Better Pipeline Infrastructure for a Better Life, ICPTT 2012

作者： Sun, Jiedi Zhang, Jinquan Wang, Xiaojun College of Information Science and Engineering Yanshan University No. 438 Hebei Avenue Qinhuangdao City Hebei Province China Key Laboratory for Computer Virtual Technology and System Integration of HeBei Province No. 438 Hebei Avenue Qinhuangdao City 066004 China Information Technology Unit of China Petrolium Communication Company No. 49 Jin'guang Road Langfang Hebei Province 065000 China

ISBN: (纸本)9780784412619

As a safe and economical method the pipeline is widely used to transport the oil and gas. At present, most of serious pipeline accidents are the artificial damages. The traditional leakage detection methods only infer the leakages by analyzing the parameters. The sensitivities are low and the leakage warning exclusively arrives after the leakage. The urgent problem is to detect the intrusions and locate the threat position. For this reason, we studied and developed a novel pipeline security monitoring and pre-warning system based on multi-seismic sensors. The system consists of many seismic geophones and data acquisition modules which are laid along the pipeline. The events such as footstep, car moving and the digging generate the seismic waves. These sensors and modules acquire the seismic signals. The empirical mode decomposition is used to acquire the IMFs (intrinsic mode functions). Then the IMF kurtosis features are normalized and used to recognize the different targets. In order to improve the individual target recognition accuracy, it proposes to fuse the identification results by using the Dempster-Shafer evidence theory and obtain the final judgment. If the target belongs to threat, the location will be finished. The time-frequency analysis method is used to process the seismic signals. The EMD outcomes are transformed by Hilbert-Huang Transform and then it can acquire the signal's instantaneous properties such as instantaneous frequency, phase and amplitude. In this paper we also discuss the localization procedures and put forward to a new passive localization method based on HHT and TDOA. The filed trails show the proposed methods work well. © 2013 American Society of Civil Engineers.

关键词： Hilbert-Huang transform

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An Improved Chaotic Cryptosystem Based on Circular Bit Shift and XOR Operations

An Improved Chaotic Cryptosystem Based on Circular Bit Shift...

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第十一届全国博士生学术年会——信息技术与安全专题

作者： Shu-Jiang Xua Xiu-Bo Chen Ru Zhang Yi-Xian Yang Yu-Cui Guo Information Security Center Beijing University of Posts and Telecommunications Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center State Key Laboratory of Information Security(Graduate University of Chinese Academy of Sciences) School of Science Beijing University of Posts and Telecommunications

A type of chaotic enciyption scheme by combining circular bit shift with XOR operations was proposed in2006 based on iterating chaotic *** after the proposal,it was cryptanalyzed and ***,there are still two drawbacks in the two improved *** strengthen the performance of the focused type of scheme,a new improved scheme based on Chen’s chaotic system is proposed in this *** results and theoretical analysis show that our improved scheme is immune to information extracting by chosen plaintext attack and has expected cryptographic properties.

关键词： Chaos Chaotic cryptosystem Image encryption Chen’s chaotic system

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A Dynamic Probabilistic Marking Approach with Multi-Tag for Tracing ICMP-Based DoS Attacks

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Wuhan University Journal of Natural Sciences 2013年第6期18卷 484-488页

作者： CHEN Xiuzhen MA Jin LI Shenghong CHEN Ken SERHROUCHNI Ahmed State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University School of Information Security Engineering Shanghai Jiao Tong University Les Laboratoires de l'Institut Galilée Université Paris 13Paris 93430 France Network and Computer Science Department Telecom ParisTech Paris 75634 France

This paper presents a dynamic probabilistic marking algorithm with multiple routing address tags, which allows the vic- tim to traceback the origin of ICMP （Internet Control Message Pro- tocol）-based direct and reflective DoS attacks. The proposed ap- proach makes full use of scalable data space of ICMP packet to achieve multiple information tags. The difference between this pro- posal and previous proposals lies in two points. First, the number of packets needed by the victim to reconstruct the attack path is greatly reduced because of three key mechanisms： multi-tag, uniform left- over probability, and tag location choice based on the module of accommodated tag numbers within a packet. Second, the true origin of both direct and reflective ICMP-based DoS attacks can be traced.

关键词： network security denial of service IP traceback dynamic probabilistic marking multi-tag

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IEEE 802.15.4 Performance with Wi-Fi Interference

IEEE 802.15.4 Performance with Wi-Fi Interference

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2013 International Conference on Mechanical Engineering and Instrumentation(ICMEI 2013)

作者： Fuqiang Wang Xiaoming Wu Yong Pang Yan Liang Yifan Hu Shandong Computer Science Center Shandong Academy of Sciences & Shandong Provincial Key Laboratory Of Computer Network College of Information Science and Engineering Shandong University of Science and Technology Shandong University

This The IEEE 802.15.4 devices are proposed to operate in the 2.4 GHz industrial, scientific and medical(ISM) band. The other devices that use IEEE 802.11 b, g and n share the same frequency band. The interference caused by these technologies can degrade the performance of an IEEE 802.15.4 based wireless network. In this paper we study such degrading effects on a network equipped with IEEE 802.15.4 devices that is exposed to interference in turn with IEEE 802.11 b, g and n. The performance measure in this paper is the link Packet Receive Rate(PRR). Measurements are performed with real-life equipment, in order to quantify coexistence issues. We test all 16 channels of IEEE 802.15.4 in 2.4G band and the results show the decrease of PRR when suffering in close frequency with IEEE 802.11. The connection between energy detection and PRR is also exhibited in this paper.

关键词： Wifi PRR energy interference

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High-payload spread spectrum based audio watermarking via M-ary code phase shift keying

High-payload spread spectrum based audio watermarking via M-...

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International Conference on information Science and Technology (ICIST)

作者： Youzhi Zhang Peng Zhang Ye Li Wenshuo Zhang Lin Zhao Department of Information Shandong Kaiwen College of Science and Technology Jinan 250200 China Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center Jinan 250101 China

ISBN: (纸本)9781467327626

This paper presents a method to improve the payload of spread spectrum (SS) based audio watermarking via an M-ary SS modulation technique called code phase shift keying (CPSK), in which the code phase of the spreading sequence is modulated with multiple data bits. Compared with the code division multiple access (CDMA) based watermarking with the same transparency and payload, the proposed scheme provides better robustness against common attacks for large M, and requires lower embedding and extraction complexity.

关键词： Watermarking Multiaccess communication Modulation Payloads Complexity theory Robustness Bit error rate

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Using Chou’s Pseudo Amino Acid Composition for Protein Remote Homology Detection

Using Chou’s Pseudo Amino Acid Composition for Protein Remo...

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The 7th International Conference on Bioinformatics and Biomedical Engineering(ICBBE 2013)

作者： Bin Liu Xiaolong Wang School of Computer Science and Technology Harbin Institute of TechnologyShenzhen Graduate School Key Laboratory of Network Oriented Intelligent Computation Harbin Institute of TechnologyShenzhen Graduate School Shanghai Key Laboratory of Intelligent Information Processing

Protein remote homology detection is a key problem in ***,the discriminative methods,such as Support Vector Machine(SVM),can achieve the best *** most efficient approa

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Using Chou's Pseudo Amino Acid Composition for Protein Remote Homology Detection

Using Chou's Pseudo Amino Acid Composition for Protein Remot...

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The 7th International Conference on Management and Service Science(MASS 2013)

Protein remote homology detection is a key problem in ***,the discriminative methods,such as Support Vector Machine(SVM),can achieve the best *** most efficient approach to improve the performance of the SVM-based methods is to find a general protein representation method that is able to convert proteins with different lengths into fixed length vectors and captures the different properties of the proteins for the *** bottleneck of designing the protein representation method is that native proteins have different *** by the success of the pseudo amino acid composition(PseAAC) proposed by Chou,we applied this approach for protein remote homology *** new indices derived from the amino acid index(AAIndex) database are incorporated into the PseAAC to improve the generalization ability of this *** experiments on a well-known benchmark show this method achieves superior or comparable performance with current state-of-the-art methods.

关键词： Protein Remote Homology Support Vector Machine Pseudo Amino Acid Composition Protein Representation

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Correction: Differential structural dynamics and antigenicity of two similar influenza H5N1 virus HA-specific HLA-A*0201-restricted CLT epitopes

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RSC Advances 2014年第9期5卷 6742-6742页

作者： Yeping Sun Qian Liu Zhong Jin CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of Microbiology Chinese Academy of Sciences Beijing 100101 P. R. China Supercomputing Center Computer Network Information Center Chinese Academy of Sciences Beijing 100190 P. R. China

Correction for ‘Differential structural dynamics and antigenicity of two similar influenza H5N1 virus HA-specific HLA-A*0201-restricted CLT epitopes’ by Yeping Sun et al., RSC Adv., 2015, 5, 2318–2327.

Correction for ‘Differential structural dynamics and antigenicity of two similar influenza H5N1 virus HA-specific HLA-A*0201-restricted CLT epitopes’ by Yeping Sun et al., RSC Adv., 2015, 5, 2318–2327.

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