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2013 10th IEEE International Conference on Control and Automation (ICCA)最新文献

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Pricing-based cross-layer scheduling and energy management over OFDM downlink networks 基于定价的OFDM下行网络跨层调度与能量管理
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6565175
Yong Yang, Bo Yang, X. Guan
We focus on downlink scheduling and resource allocation for orthogonal frequency division multiplexing (OFDM) wireless networks. From a perspective of network operators, the base station (BS) will charge the downlink users to earn revenue and pay for electricity consumption. The aim of network operators is to achieve better profits while ensuring network stability. In the context of smart grid, the BS can harvest renewable energy and store energy in order to cut down electricity cost. The challenge is that it is hard to obtain the accurate statistic knowledge of electricity price, random rate requests and renewable energy. Furthermore, we have to deal with the dynamic data rate requests from downlink users with heterogeneous quality of service (QoS) requirements. To handle the coupling between congestion control, energy consumption and radio resource allocation, we propose a pricing-based crosslayer scheduling and energy management algorithm PCSM based on Lyapunov optimization: the energy management can well regulate the electricity charging rate in case of interrupting the downlink service; the data rate pricing-based congestion control scheme collects proper revenue by setting data rate price to carry out flow control and profit maximization; the radio resource allocation can achieve adaptive allocation by using cross-layer information from the network layer as well as energy storage condition. Theoretical analysis shows that it can achieve a near-optimal performance when stabilizing the network and that its effectiveness is also validated through simulation results.
研究正交频分复用(OFDM)无线网络的下行链路调度和资源分配问题。从网络运营商的角度来看,基站(BS)将向下行用户收费以赚取收入并支付电费。网络运营商的目标是在保证网络稳定性的同时获得更好的利润。在智能电网的背景下,BS可以收集可再生能源并储存能量,以降低电力成本。面临的挑战是很难获得电价、随机费率请求和可再生能源的准确统计知识。此外,我们还必须处理具有异构服务质量(QoS)需求的下行用户的动态数据速率请求。为了解决拥塞控制、能源消耗和无线电资源分配之间的耦合问题,提出了一种基于Lyapunov优化的基于定价的跨层调度和能量管理算法PCSM:能量管理可以很好地调节下行业务中断情况下的充电率;基于数据速率定价的拥塞控制方案通过设定数据速率价格来收取适当的收入,实现流量控制和利润最大化;无线资源分配可以利用网络层的跨层信息和能量存储条件实现自适应分配。理论分析表明,在稳定网络的情况下,该方法能达到接近最优的性能,仿真结果也验证了该方法的有效性。
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引用次数: 0
A systematic method to guide the choice of ridge parameter in ridge extreme learning machine 给出了一种指导山脊极限学习机中山脊参数选择的系统方法
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6564900
M. Er, Zhifei Shao, Ning Wang
Extreme Learning Machine (ELM) has attracted many researchers as a universal function approximator because of its extremely fast learning speed and good generalization performance. Recently, a new trend in ELM emerges to combine it with ridge regression, which has been shown improved stability and generalization performance. However, this ridge parameter is determined through a trial-and-error manner, an unsatisfactory approach for automatic learning applications. In this paper, the differences between ridge ELM and ordinary Neural Networks are discussed as well as special properties of ridge ELM and various approaches to derive the ridge parameter. Furthermore, a semi-cross-validation ridge parameter selection procedure based on the special properties of ridge ELM is proposed. This approach, termed as Semi-Cross-validation Ridge ELM (SC-R-ELM), is also demonstrated to achieve robust and reliable results in 11 regression data sets.
极限学习机(Extreme Learning Machine, ELM)由于其极快的学习速度和良好的泛化性能,作为一种通用函数逼近器受到了广泛的关注。近年来,在ELM中出现了将其与脊回归相结合的新趋势,其稳定性和泛化性能得到了提高。然而,这个岭参数是通过试错的方式确定的,对于自动学习应用来说,这是一种不令人满意的方法。本文讨论了脊状神经网络与普通神经网络的区别,以及脊状神经网络的特殊性质和各种推导脊状神经网络参数的方法。在此基础上,提出了一种基于脊线ELM特性的半交叉验证脊线参数选择方法。这种方法被称为半交叉验证岭ELM (SC-R-ELM),也被证明可以在11个回归数据集中获得稳健和可靠的结果。
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引用次数: 9
Dissipativity based analysis and control of process networks with varying time delay 基于耗散的变时滞过程网络分析与控制
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6564954
M. J. Tippett, C. Zheng, J. Bao
An approach to distributed plant-wide analysis and control of networked systems with varying time delay in discrete time is presented, with a particular focus on chemical process systems. Plant-wide stability and performance conditions are ensured by putting constraints on the dissipativity properties of the plant-wide system, which is a linear function of the dissipativity properties of individual subsystems. To facilitate this, dynamic supply rates in the form of quadratic difference forms are used, which provide less conservative stability conditions than traditional forms of dissipativity and allow for the effect of time delays to be captured. The control design procedure includes a global planning stage where the required dissipativity of each controller is determined, followed by the independent synthesis of each controller which may take the form of either a linear controller or model predictive controller. This framework may be extended to consider additional forms of uncertainty.
提出了一种在离散时间下具有变时延的网络系统的分布式全厂分析和控制方法,并特别关注化学过程系统。全厂范围的稳定性和性能条件是通过对全厂系统的耗散特性施加约束来保证的,耗散特性是单个子系统耗散特性的线性函数。为了实现这一点,使用了二次差分形式的动态供应率,它比传统形式的耗散率提供更少的保守稳定性条件,并允许捕获时间延迟的影响。控制设计过程包括一个全局规划阶段,其中确定每个控制器所需的耗散率,然后是每个控制器的独立综合,可以采用线性控制器或模型预测控制器的形式。这个框架可以扩展到考虑其他形式的不确定性。
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引用次数: 2
A special detector for the edge adaptive image steganography based on LSB matching revisited 重新研究了一种基于LSB匹配的边缘自适应图像隐写专用检测器
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6564938
Zhenhao Zhu, Zhang Tao, Baoji Wan
Based on the analysis of the pixel value difference (PVD) histograms of the cover and stego-images, a special steganalyzer is proposed for the edge adaptive image steganography based on least-significant-bit matching revisited (EA-LSBMR). The EA-LSBMR steganography utilizes the sharper edge regions within the cover images to embed the secret message firstly, which achieves a higher security. However, there exists unavoidable weakness: abnormal increasing at some position of the PVD histogram. The special steganslytic method is designed using the weakness of the EA-LSBMR steganography. Extensive experimental results show that the proposed method can defeat the EA-LSBMR steganography effectively.
在分析掩蔽图像和隐写图像的像素值差(PVD)直方图的基础上,提出了一种基于重访最小有效位匹配(EA-LSBMR)的边缘自适应隐写分析方法。EA-LSBMR隐写技术利用封面图像内更锐利的边缘区域首先嵌入秘密信息,从而达到更高的安全性。但也存在不可避免的缺点,即在PVD直方图的某些位置出现异常增高。利用EA-LSBMR隐写术的弱点,设计了一种特殊的隐写方法。大量的实验结果表明,该方法可以有效地挫败EA-LSBMR隐写。
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引用次数: 23
Fast algorithms to solve the Dantzig selector 快速算法求解Dantzig选择器
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6565188
Liang Li, Yongcheng Li, Qing Ling
The Dantzig selector is a linear regression model which aims to sparsely represent a response vector by regressors. This paper introduces two fast algorithms which solve the Dantzig selector. One algorithm is linearized alternating direction method (LADMM) which utilizes the separable structure to solve the Dantzig selector; another is a variant of Dantzig selector with sequential optimization (DASSO) which utilizes the sparsity prior to solve the Dantzig selector. We numerically compare the two algorithms on standard data sets, and show that taking advantage of properties of the problem itself enables designing fast algorithms.
Dantzig选择器是一种线性回归模型,旨在通过回归量稀疏地表示响应向量。本文介绍了求解Dantzig选择器的两种快速算法。一种算法是线性化交替方向法(LADMM),利用可分结构求解Dantzig选择器;另一种是Dantzig选择器的序列优化(DASSO)变体,它利用稀疏性先验来求解Dantzig选择器。我们在标准数据集上对这两种算法进行了数值比较,并表明利用问题本身的特性可以设计出快速的算法。
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引用次数: 2
Adaptive state aware routing protocol for vehicle ad hoc network in urban scenarios 城市场景下车辆自组织网络的自适应状态感知路由协议
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6564981
Huabiao Qin, Cong Yu, Lianxiang Guo, Yanxi Zhou
Developing multi-hop communication in vehicular ad hoc networks (VANET) is a challenging problem. The rapidly changing topology and frequent network disconnections of vehicles cause failure or inefficiency in traditional ad hoc routing protocols. This paper propose Adaptive State Aware Routing (ASAR) Protocol, which solve these problems by adaptively selecting an optimal route with an estimated transmission delay model that takes into account real-time vehicle density and average speed. Simulation results show that the proposed ASAR protocol effectively increases the data delivery ratio, and significantly reduces the end to end delay and routing overhead, which is better than other existing VANET routing protocols.
在车载自组织网络(VANET)中开发多跳通信是一个具有挑战性的问题。快速变化的拓扑结构和车辆频繁的网络断开导致传统的自组织路由协议失效或效率低下。本文提出了自适应状态感知路由(ASAR)协议,该协议通过考虑实时车辆密度和平均速度的估计传输延迟模型自适应选择最优路由来解决这些问题。仿真结果表明,所提出的ASAR协议有效地提高了数据传输率,显著降低了端到端时延和路由开销,优于现有的VANET路由协议。
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引用次数: 4
The application of image based visual servo control system for smart guard 基于图像的视觉伺服控制系统在智能警卫中的应用
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6564898
Li Li, Binhai Wang, Beidou Li, Peng Xiao, Wanguo Wang, Yibin Li
Based on SmartGuard, a mobile robot for substation inspection, we propose an image based visual servo control system to precisely make the cameras with the pan & tilt to capture the substation equipment we expected to inspect. The vision control system contents of an image acquisition system, a pan & tilt and an embedded servo control system. The proposed approach firstly uses SURF local feature to take the offset of the new acquired image and the template image, which is invariant to light, scale and rotation. Without the calibration of the pan & tilt and the vision system, we calculate the Jacobian matrix based on the test movement. Then we take the servo until the image feature reach to the object image. Using this image based vision system, SmartGuard can avoid the effect of the motion error and the repeating errors of pan & tilt system, and take the precisely image of the power equipments for automatic optical inspection system.
基于移动变电站巡检机器人SmartGuard,提出了一种基于图像的视觉伺服控制系统,使摄像机具有平移和倾斜的特点,能够精确地捕捉到需要巡检的变电站设备。视觉控制系统包括图像采集系统、平移倾斜控制系统和嵌入式伺服控制系统。该方法首先利用SURF局部特征取新采集图像与模板图像的偏移量,该特征对光照、尺度和旋转不改变;在不标定平移、倾斜和视觉系统的情况下,基于测试运动计算雅可比矩阵。然后进行伺服,直到图像特征达到目标图像。SmartGuard采用基于图像的视觉系统,可以避免平移和倾斜系统的运动误差和重复误差的影响,为自动光学检测系统准确地获取动力设备的图像。
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引用次数: 4
Fuzzy model predictive control of a permanent magnet synchronous motor in electric vehicles 电动汽车永磁同步电机模糊模型预测控制
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6565084
Zhitao Liu, Youyi Wang, Jian Du
In this paper, fuzzy model predictive control(FMPC) is applied to the speed control of permanent magnet synchronous machine(PMSM) in electric vehicles(EVs). PMSM are being widely used in vehicle industry, but as its highly nonlinear model, it is difficult to regulate the motor speed. In order to improve the performance of EVs, model predictive control is used to control PMSM based on the Takagi-Sugeno fuzzy approach. The proposed FMPC for the PMSM is used to regulate the speed to track the driving cycle, and simulation results are given to shown the effectiveness of the proposed controller.
本文将模糊模型预测控制(FMPC)应用于电动汽车永磁同步电机的速度控制。永磁同步电机在汽车工业中得到了广泛的应用,但由于其高度非线性模型,电机转速难以调节。为了提高电动汽车的性能,采用基于Takagi-Sugeno模糊方法的模型预测控制对永磁同步电机进行控制。利用所提出的永磁同步电机FMPC来调节转速以跟踪驱动周期,仿真结果表明了所提出控制器的有效性。
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引用次数: 8
An adaptive preview path tracker for off-road autonomous driving 一种用于越野自动驾驶的自适应预览路径跟踪器
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6564867
Xiaohui Li, Zhenping Sun, Qing-yang Chen, Daxue Liu
A path tracking algorithm with adaptive preview distance based on roadside sampling is proposed in order to solve the path tracking control problems of autonomous driving in the complex off-road environment. The proposed lateral and longitudinal control laws involve both feedback control and feedforward control. We have reformulated the lateral control problem as an optimal control problem, and the designed trajectory is planned by taking the kinematic constrains of the vehicle and the preview road information pertaining to road curvature and road width into account. The desired lateral control command is directly decided by the curvature of the planned circular curves and the longitudinal velocity is planned by utilizing the preview information and the planned circular curves. In the meantime, the feedback control laws are designed by adopting inverse model of the vehicle dynamics. We implement our control method on the 14-DOF vehicle simulation model. And the simulation results are presented and discussed.
为了解决复杂越野环境下自动驾驶的路径跟踪控制问题,提出了一种基于路边采样的自适应预瞄距离路径跟踪算法。所提出的横向和纵向控制律包括反馈控制和前馈控制。我们将横向控制问题重新表述为最优控制问题,并考虑车辆的运动约束和道路曲率、道路宽度等预览信息,对设计的轨迹进行规划。横向控制命令直接由规划的圆曲线的曲率决定,纵向速度是利用预览信息和规划的圆曲线来规划的。同时,采用车辆动力学逆模型设计了反馈控制律。我们在14自由度车辆仿真模型上实现了我们的控制方法。最后给出了仿真结果并进行了讨论。
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引用次数: 1
A new GRASP and path relinking for single machine scheduling with sequence dependent setups 一种新的具有序列依赖设置的单机调度的抓取和路径链接
Pub Date : 2013-06-12 DOI: 10.1109/ICCA.2013.6565014
Jiaxiang Luo, Yueming Hu
Setup (changeover) time is often needed by the processes with operations of cleaning or changing fixtures. Its length strongly depends on the immediately succeeding operation sometimes. The scheduling problems with such setup times are called to have sequence dependent setups. This paper focuses on a single machine scheduling problem with sequence dependent setups to minimize total weighted tardiness. A greedy randomized adaptive search procedure (GRASP) combined with path relinking (PR) is proposed for the NP-hard problem. In the algorithm, our main contributions are a new iterated filter-and-fan (IFF) algorithm in the improvement phase of GRASP and a block insertion based path construction method in PR. We compare our algorithm with discrete differential evolution (DDE), discrete particle swarm optimization (DPSO) and single IFF algorithm on a set of test instances from literature. The results show that the algorithm performs very competitively.
安装(转换)时间通常需要清洗或更换夹具的过程。它的长度有时强烈地依赖于紧随其后的操作。具有这种设置时间的调度问题被称为具有序列依赖的设置。本文研究了一个具有序列相关设置的单机调度问题,以最小化总加权延迟。针对NP-hard问题,提出了一种结合路径重链接的贪婪随机自适应搜索方法(GRASP)。在算法中,我们的主要贡献是在GRASP的改进阶段提出了一种新的迭代滤波-风扇(IFF)算法,在PR中提出了一种基于块插入的路径构建方法。我们将我们的算法与离散微分进化(DDE)、离散粒子群优化(DPSO)和单一IFF算法在一组文献中的测试实例上进行了比较。结果表明,该算法具有很强的竞争力。
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引用次数: 8
期刊
2013 10th IEEE International Conference on Control and Automation (ICCA)
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