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IEEE International Conference on Communications

作者： Meng Zhang Miaowen Wen Xiang Cheng Liu-Qing Yang School of Electronics Engineering and Computer Science Peking University School of Electronic and Information Engineering South China University of Technology State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences

ISBN: (纸本)9781467364300

Differential spatial modulation (DSM) is a newly proposed differential modulation technique tailored to spatial modulation (SM), which requires no channel state information (CSI) at the receiver. DSM can offer flexible tradeoff between the reception reliability and the system complexity. In this paper, we are the first to study the adoption of DSM in a dual-hop amplify-and-forward (AF) relaying system, which consists of a two-antenna source, a single-antenna relay, and a single-antenna destination, so as to reduce the burden of channel tracking on both the relay and the destination. We derive a general upper bound on the average bit error probability (ABEP) achieved by the system. Moreover, an exact closed-form ABEP expression and the asymptotic result are provided for BPSK signaling in Rayleigh fading environment. The same system setup with the adoption of SM at the source is chosen as a benchmark for performance comparisons. Simulation results validate the analysis and reveal a 3dB signal-to-noise power ratio (SNR) penalty of the considered system compared with the benchmark.

关键词： Relays Upper bound Binary phase shift keying Signal to noise ratio Transmitting antennas Wireless communication

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State Estimation of Finite-State Hidden Markov Models Subject to Stochastically Event-triggered Measurements

State Estimation of Finite-State Hidden Markov Models Subjec...

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IEEE Annual Conference on Decision and control

作者： Wentao Chen Junzheng Wang Ling Shi Dawei Shi State Key Laboratory of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology Beijing 100081 P.R. China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

ISBN: (纸本)9781479978878

We consider the event-triggered state estimation of a finite-state hidden Markov model with a general stochastic event-triggering condition. Utilizing the change of probability measure approach and the event-triggered measurement information available to the estimator, analytical expressions for the conditional probability distributions of the states are obtained, based on which the minimum mean square error event-based state estimates are further calculated. We show that the results also cover the case of packet dropout, under a special parameterization of the event-triggering conditions. With the results on state estimation, a closed-form expression of the average sensor-to-estimator communication rate is also presented. The effectiveness of the proposed results is illustrated by a numerical example and comparative simulations.

关键词： State estimation Hidden Markov models Event trigger Probability distribution Mean square error numerical example

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A Hierarchical Hand Motions Recognition Method Based on IMU and sEMG Sensors

A Hierarchical Hand Motions Recognition Method Based on IMU ...

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IEEE International Conference on Robotics and Biomimetics

作者： Wennan Chang Lili Dai Shili Sheng Jeffrey Too Chuan TAN Chi Zhu Feng Duan Department of Automation College of Computer and Control Engineering Nankai University No.94 Weijin Road Tianjin 300071 P.R. China Institute of Industrial Science University of Tokyo Japan Department of Systems Life Engineering Maebashi Institute of Technology Kamisadori 460-1 Maebashi Gunma 371-0816 Japan

ISBN: (纸本)9781467396769

Human hand is crucial to the activity of daily living. To improve amputees' quality of life (QOL), it is imperative to propose a new method for the prosthesis hand to recognize hand motions. According to previous researches, multi-sensor can obtain more information with limited sensors for improving the classification accuracy rate. Therefore, this paper proposed a hierarchical hand motions recognition method based on one inertial measurement unit (IMU) sensor and two surface electromyography (sEMG) sensors. We dealt with two types of signals separately to classified six predefined hand motions in a hierarchical structure. The method utilized SVM classifier for EMG signals and a decision-tree classifier for IMU signals. To verify the feasibility of the hierarchical hand motion recognition method, ten subjects were asked to join the experiment. And experimental results show that proposed method is stable and the overall average accuracy rate is 95.6% The combination of sEMG and IMU signals can be used for prosthetic user interface applications.

关键词： imperative propose IMU

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Stochastic Packet Scheduling for Optimal Parameter Estimation

Stochastic Packet Scheduling for Optimal Parameter Estimatio...

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IEEE Annual Conference on Decision and control

作者： Duo Han Keyou You Lihua Xie Junfeng Wu Ling Shi School of Electrical and Electronic Engineering Nanyang Technological University Singapore Department of Automation Tsinghua University Beijing 100084 China Department of Automatic Control The Royal Institute of Technology (KTH) Stockholm Sweden Electronic and Computer Engineering Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

ISBN: (纸本)9781479978878

In this paper we consider optimal parameter estimation with a constrained packet transmission rate. Due to the limited battery power and the traffic congestion over a large sensor network, each sensor is required to discard some packets and save transmission times. We propose a packet-driven sensor scheduling policy such that the sensor transmits only the important measurements to the estimator. Unlike the existing deterministic scheduler in [1], our stochastic packet scheduling is novelly designed to maintain the computational simplicity of the resulting maximum-likelihood estimator (MLE). This results in a nice feature that the MLE is still able to be recursively computed in a closed form, and the Cramer-Rao lower bound (CRLB) can be explicitly evaluated. Moreover, an optimization problem is formulated and solved to obtain the optimal parameters of the scheduling policy under which the estimation performance is comparable to the standard MLE (with full measurements) even with a moderate transmission rate. Numerical simulations are included to show the effectiveness.

关键词： Packet optimal parameter Parameter estimation packet schedule Battery power supply scheduling policy traffic congestion Sensors Sensor networks closed forms Stochastic

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Backward-compatible cooperation of heterogeneous P2P systems

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15th International Conference on Distributed Computing and Networking, ICDCN 2014

作者： Ngo, Hoang Giang Liquori, Luigi Nguyen, Chan Hung National Institute for Research in Computer Science and Control France Université de Nice Sophia-Antipolis France Hanoi University of Science and Technology Viet Nam Vietnam Research Institute of Electronics Informatics and Automation Viet Nam

ISBN: (纸本)9783642452482

Peer-to-peer (P2P) systems are used by millions of users everyday. In many scenarios, it is desirable for the users from different P2P systems to communicate and exchange content resources with each other. This requires co-operation between the P2P systems, which is often difficult or impossible, due to the two following reasons. First, we have the lack of a dedicated routing infrastructure throughout these systems, caused by the incompatibilities in overlay networks on top of which they are built. Second, there are incompatibilities in the application protocols of these systems. In this paper, we introduce a new model for backward-compatible co-operation between heterogeneous P2P systems. The routing across systems is enabled by introducing a super-overlay formed by a small subset of peers from every system, which run an overlay protocol called OGP (Overlay Gateway Protocol). The incompatibilities in the application protocols are solved by a co-operation application, running on top of OGP, bridging these systems at interface level. As a real application, we present a protocol named Inter-network File-sharing Protocol (IFP), running on top of OGP, aimed at co-operation of P2P file-sharing networks. The experimental results performed on the large-scale Grid5000 platform show our model to be efficient and scalable. © 2014 Springer-Verlag.

关键词： Gateways (computer networks)

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Differential spatial modulation in V2X

Differential spatial modulation in V2X

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European Conference on Antennas and Propagation, EuCAP

作者： Meng Zhang Xiang Cheng Liu-Qing Yang School of Electronics Engineering and Computer Science Peking University Beijing China National Mobile Communications Research Laboratory Southeast University Nanjing China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China Qingdao Academy of Intelligent Industries Qingdao Shandong Province China

The rapid development of vehicle-to-vehicle and vehicle-to-infrastructure (V2X) communications calls for highly spectral efficient communication techniques under time-selective channels. Spatial modulation (SM) facilitates flexible trade-off between spectral and energy efficiency. In this paper, we propose a novel modulation technique based on SM for V2X, which discards the requirement of channel state information (CSI) at the receiver and exhibits enhanced robustness against time-selective fading and Doppler effects. Our proposed scheme tailors differential modulation to SM and is named differential spatial modulation (DSM). Monte Carlo simulations are carried out to demonstrate the advantage of the new scheme in terms of bit error rate (BER) performance for both point-to-point and dual-hop amplify-and-forward (AF) relaying systems in V2X channels.

关键词： Modulation Bit error rate Transmitting antennas Relays Vehicles MIMO Receiving antennas

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Dynamic anti-windup design for anticipatory activation:enlargement of the domain of attraction

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science China(Information sciences) 2014年第1期57卷 164-177页

作者： WU XiongJun LIN Zongli Department of Automation Shanghai Jiao Tong University and Key Laboratory of System Control and Information ProcessingMinistry of Education of China The 802 Institute of Shanghai Academy of Space Flight Technology The Eighth Academy of China Aerospace Science and Technology Corporation Charles L. Brown Department of Electrical and Computer Engineering University of Virginia

Traditional anti-windup compensators are designed for activation immediately at the occurrence of actuator ***,anti-windup compensators were designed for actuation either after the saturation has reached a certain level or in anticipation of its *** the case of static anti-windup compensators,it has been shown that an anti-windup compensator designed for activation in anticipation of actuator saturation would lead to better performance than those designed for immediate or delayed activation could,both in terms of transient performance and the size of the domain of *** recently,it has been shown that a dynamic anti-windup compensator designed for anticipatory activation would also result in better transient performance than those designed for immediate or delayed activation *** this paper,we design dynamic anti-windup compensators for the enlargement of the domain of *** compensators are designed respectively for immediate,delayed and anticipatory *** will show by simulation that a dynamic anti-windup compensator designed for anticipatory activation would result in a larger domain of attraction than a dynamic anti-windup compensator designed for immediate or delayed activation could.

关键词： actuator saturation anti-windup anticipatory activation domain of attraction dynamic com-pensator

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Discriminative subspace learning with sparse representation view-based model for robust visual tracking

Discriminative subspace learning with sparse representation ...

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作者： Xie, Yuan Zhang, Wensheng Qu, Yanyun Zhang, Yinghua Research Center of Precision Sensing and Control Institute of Automation Chinese Academy of Sciences Beijing 100190 China Video and Image Lab. Department of Computer Science Xiamen University Xiamen 361005 China

In this paper, we propose a robust tracking algorithm to handle drifting problem. This algorithm consists of two parts: the first part is the G&D part that combines Generative model and Discriminative model for tracking, and the second part is the View-Based model for target appearance that corrects the result of the G&D part if necessary. In G&D part, we use the Maximum Margin Projection (MMP) to construct a graph model to preserve both local geometrical and discriminant structures of the data manifold in low dimensions. Therefore, such discriminative subspace combined with traditional generative subspace can benefit from both models. In addition, we address the problem of learning maximum margin projection under the Spectral Regression (SR) which results in significant savings in computational time. To further solve the drift, an online learned sparsely represented view-based model of the target is complementary to the G&D part. When the result of G&D part is unreliable, the view-based model can rectify the result in order to avoid drifting. Experimental results on several challenging video sequences demonstrate the effectiveness and robustness of our approach. © 2013 Elsevier Ltd. All rights reserved.

关键词： Pattern recognition

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Networked systems with incomplete information

Abstract and Applied Analysis

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Abstract and Applied Analysis 2015年第Spe2期2015卷 1-4页

作者： Wang, Zidong Shen, Bo Dong, Hongli He, Xiao Hu, Jun Department of Computer Science Brunel University London Uxbridge Middlesex UB8 3PH United Kingdom School of Information Science and Technology Donghua University Shanghai 200051 China College of Electrical and Information Engineering Northeast Petroleum University Daqing 163318 China Research Institute of Intelligent Control and Systems Harbin Institute of Technology Harbin 150001 China Department of Automation Tsinghua University Beijing 100084 China Department of Applied Mathematics Harbin University of Science and Technology Harbin 150080 China

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Generalized synchronization of nonlinear chaotic systems through natural bioinspired controlling strategy

Abstract and Applied Analysis

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Abstract and Applied Analysis 2015年第none期2015卷 1-14页

作者： Li, Shih-Yu Chen, Shi-An Lin, Chin-Teng Ko, Li-Wei Yang, Cheng-Hsiung Chen, Heng-Hui Brain Research Center National Chiao Tung University Hsinchu Taiwan Department of Electrical and Computer Engineering National Chiao Tung University Hsinchu Taiwan Department of Biological Science and Technology National Chiao Tung University 1001 Ta Hsueh Road Hsinchu 300 Taiwan Graduate Institute of Automation and Control National Taiwan University of Science and Technology Taipei Taiwan Department of Mechanical Engineering Hsiuping University of Science and Technology Taichung Taiwan

A novel bioinspired control strategy design is proposed for generalized synchronization of nonlinear chaotic systems, combining the bioinspired stability theory, fuzzy modeling, and a novel, simple-form Lyapunov control function design of derived high efficient, heuristic and bioinspired controllers. Three main contributions are concluded: (1) apply the bioinspired stability theory to further analyze the stability of fuzzy error systems;the high performance of controllers has been shown in previous study by Li and Ge 2009, (2) a new Lyapunov control function based on bioinspired stability theory is designed to achieve synchronization without using traditional LMI method, which is a simple linear homogeneous function of states and the process of designing controller to synchronize two fuzzy chaotic systems becomes much simpler, and (3) three different situations of synchronization are proposed;classical master and slave Lorenz systems, slave Chen's system, and Rossler's system as functional system are illustrated to further show the effectiveness and feasibility of our novel strategy. The simulation results show that our novel control strategy can be applied to different and complicated control situations with high effectiveness. © 2015 Shih-Yu Li et al.

关键词： GENERALIZATION SYNCHRONIZATION NONLINEAR systems CHAOS theory LYAPUNOV functions STABILITY theory

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