检索结果-内蒙古大学图书馆

International Conference on Measuring technology and Mechatronics Automation, ICMTMA 2010

作者： Wang, Quan Chen, Xuhui Wang, Ping Liu, Chao Ministry of Education Key Lab of Network Control and Intelligent Instrument Chongqing University of Posts and Telecommunications Chongqing 400065 China Key Laboratory of Wireless Sensor Network and Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences 865 Changning Road Shanghai 200050 China

ISBN: (纸本)9780769539621

By means of comprehensive analysis of the traits and demands of industrial wireless networks, interconnection issues between WIA-PA wireless industry network wireless networks and Ethernet for Plant Automation (EPA) are researched and concluded. Aim to solve those issues, the system model and architecture of the smart tunneling gateway is proposed in this paper. Furthermore, design and implementation of this smart tunneling gateway is introduced in detail. Finally, experiment testing results show that the proposed industrial wireless gateway of smart tunneling can efficiently improve the data transmission performance and extend the life of wireless field devices. © 2010 IEEE.

关键词： Wireless networks

来源：评论

学校读者我要写书评

暂无评论

A NEW PRIVACY-PRESERVING EUCLID-DISTANCE PROTOCOL AND ITS APPLICATIONS IN WSNS

引用

Journal of Electronics(China) 2013年第2期30卷 190-197页

作者： Chen Ping Ji Yimu Wang Ruchuan Huang Haiping Zhang Dan College of Computer Nanjing University of Posts and Telecommunications Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Key Lab of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education Nanjing University of Posts and Telecommunications

Recently, privacy concerns become an increasingly critical issue. Secure multi-party computation plays an important role in privacy-preserving. Secure multi-party computational geometry is a new field of secure multi-party computation. In this paper, we devote to investigating the solutions to some secure geometric problems in a cooperative environment. The problem is collaboratively computing the Euclid-distance between two private vectors without disclosing the private input to each other. A general privacy-preserving Euclid-distance protocol is firstly presented as a building block and is proved to be secure and efficient in the comparison with the previous methods. And we proposed a new protocol for the application in Wireless Sensor networks (WSNs), based on the novel Euclid-distance protocol and Density-Based Clustering Protocol (DBCP), so that the nodes from two sides can compute cooperatively to divide them into clusters without disclosing their location information to the opposite side.

关键词： Secure multi-party computation Privacy-preserving Euclid-distance protocol Wireless Sensor networks (WSNs) Density-Based Clustering Protocol (DBCP)

来源：评论

学校读者我要写书评

暂无评论

Dynamic Spectrum Access Scheme of Joint Power Control in Underlay Mode Based on Deep Reinforcement Learning

Dynamic Spectrum Access Scheme of Joint Power Control in Und...

引用

IEEE International Conference on communications in China (ICCC)

作者： Xiping Chen Xianzhong Xie Zhaoyuan Shi Zishen Fan Chongqing Key Laboratory of Computer Network and Communication Technology Chongqing University of Posts and Telecommunications Chongqing China

ISBN: (数字)9781728173276

ISBN: (纸本)9781728173283

With the increasing complexity of wireless networks and the increasing shortage of spectrum resources, a novel dynamic spectrum access (DSA) solution is urgently needed. For complex and dynamic cognitive radio networks (CRN), this paper proposes a joint DSA and power control scheme based on deep reinforcement learning (DRL). In order to improve the convergence speed of the algorithm, the DRL is improved to a hierarchical DRL, centralized DSA is implemented through CBS, and distributed power control is implemented at each secondary user (SU). Sufficient simulation experiments show that the proposed algorithm has faster convergence speed and lower packet loss.

关键词： Heuristic algorithms Power control Dynamic spectrum access Packet loss Reinforcement learning Cognitive radio Convergence

来源：评论

学校读者我要写书评

暂无评论

An efficient coverage control algorithm for three-dimensional underwater sensor networks

引用

Advances in Information Sciences and Service Sciences 2012年第10期4卷 393-399页

作者： Xiao, Fu Yang, Yang Sun, Li Wang, Ruchuan Nanjing University of Posts and Telecommunications Nanjing 210003 China Provincial Key Laboratory for Computer Information Processing Technology Soochow University Suzhou 215006 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing 210003 China Key Lab of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Nanjing 210003 China

Strategy of sensor nodes deployment is directly related to the cost and performance for underwater wireless sensor networks, which is largely determined the various service-quality improvement of wireless sensor networks. In order to improve the coverage of the target area, this paper presents a distributed algorithm of coverage control. Assume that nodes initially deployed on the surface of the water and can only move in vertical direction in 3-D space, the algorithm is first to control the nodes in-depth and relocate the nodes at different depths, then the nodes continue to adjust their depths until there is no augment for improving their coverage, and to achieve efficient coverage of the three-dimensional sensor networks ultimately. Experimental results show that compared with traditional random deployment method, the proposed coverage control algorithm can improve coverage of network effectively.

关键词： Quality control

来源：评论

学校读者我要写书评

暂无评论

A novel integrity-preserving privacy data aggregation in sensor networks

引用

Journal of Computational Information Systems 2012年第20期8卷 8471-8478页

作者： Zhou, Qiang Yang, Geng Yang, Zhen Key Lab of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education Nanjing University of Post and Telecommunications Nanjing 210003 China College of Computer Nanjing University of Post and Telecommunications Nanjing 210003 China College of Computer and Information Engineering Chuzhou University Chuzhou 239000 China

Data privacy and integrity preserving play important roles in application of the Internet of Things (IoT). As a part of the IoT, wireless sensor networks (WSNs) should have the function of privacy preserving and integrity checking in data aggregation. This paper proposes a novel integrity-preserving privacy data aggregation in sensor networks, which is called IPPDA. Firstly, the "slicing and assembling" technique is implemented to provide privacy preserving;then aggregation nodes perform delayed aggregation, which trades off a slight increase in communication overhead in return for the ability to execute integrity checking;finally, the child monitoring mechanism is adopted to detect the location of bogus data, remove the compromised node and eliminate communication overhead caused by bogus data. The simulation results show that IPPDA can effectively preserve data privacy, check data integrity, and get accurate data aggregation results while having less communication. © 2012 Binary Information Press.

关键词： Data privacy

来源：评论

学校读者我要写书评

暂无评论

Invisible cloak fails: CSI-based passive human detection 1

Invisible cloak fails: CSI-based passive human detection

引用

1st ACM Workshop on Context Sensing and Activity Recognition, CSAR 2015

作者： Xiao, Fu Xie, Xiaohui Zhu, Hai Sun, Lijuan Wang, Ruchuan School of Computer Nanjing University of Posts and Telecommunications China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks China Key Lab of Broadband Wireless Communication and Sensor Network Technology China

ISBN: (纸本)9781450338424

WiFi signals have attracted extensive attention for context-aware due to its ubiquity. Traditional WiFi sensing methods mainly adopt Received Signal Strength Indication (RSSI), however the coarse features hamper its expansion. To achieve more finger-grained information, Channel State Information (CSI) is introduced for sensing, based on which, we design a directional human detection scheme via data prediction, which aims to visualize the variations of CSI when human appears. However, this scheme suffers from the limitations caused by the link-centric architecture of WiFi. Considering the demands for omnidirectional coverage of some scenarios (e.g. museum exhibition), we propose a omni-directional detection scheme based on fingerprinting utilizing the relationship between the CSI signal features and locations. Experiments are processed in actual scenarios and experimental results verify the feasibility of our two schemes. © 2015 ACM.

关键词： Channel state information

来源：评论

学校读者我要写书评

暂无评论

A Historical-Information-Based Algorithm in Dynamic Spectrum Allocation

A Historical-Information-Based Algorithm in Dynamic Spectrum...

引用

International Conference on communication Software and networks, ICCSN

作者： Lili Yang Xianzhong Xie Yi Zheng Institute of Personal Communication IMlI Key Lab on Computer Network and Communication Chongqing University of Posts and Telecommunications Chongqing China

Cognitive radio is viewed as a novel approach for improving the utilization of radio frequency spectrum greatly by intelligently search and utilize free spectrum not used by licensed user. Dynamic spectrum allocation technology is one of the key technologies in realization of cognitive radio. In this paper we propose a new algorithm for spectrum sharing which considering historical allocation information of secondary user. Simulation results indicate this historical-information-based algorithm can achieve greater performance in sum bandwidth and fairness compared to the original algorithm.

关键词： Heuristic algorithms Cognitive radio Bandwidth Availability Centralized control Software algorithms computer networks Radio frequency Intelligent networks Broadcasting

来源：评论

学校读者我要写书评

暂无评论

Distributionally robust optimization based chance-constrained energy management for hybrid energy powered cellular networks

引用

Digital communications and networks 2023年第3期9卷 797-808页

作者： Pengfei Du Hongjiang Lei Imran Shafique Ansari Jianbo Du Xiaoli Chu The Engineering Research Center of Intelligent Air-ground Integrated Vehicle and Traffic Control Ministry of EducationXihua UniversityChengdu610039China Chongqing Key Lab of Mobile Communications Technology Chongqing University of Posts and TelecommunicationsChongqing400065China James Watt School of Engineering University of GlasgowGlasgowG128QQUK Shaanxi Key Laboratory of Information Communication Network and Security Xi'an University of Posts and TelecommunicationsXi'an710121China Electronic and Electrical Engineering University of SheffieldSheffieldS102TNUK

Energy harvesting has been recognized as a promising technique with which to effectively reduce carbon emis-sions and electricity expenses of base ***,renewable energy is inherently stochastic and inter-mittent,imposing formidable challenges on reliably satisfying users'time-varying wireless traffic *** addition,the probability distribution of the renewable energy or users’wireless traffic demand is not always fully known in *** this paper,we minimize the total energy cost of a hybrid-energy-powered cellular network by jointly optimizing the energy sharing among base stations,the battery charging and discharging rates,and the energy purchased from the grid under the constraint of a limited battery size at each base *** solving the formulated non-convex chance-constrained stochastic optimization problem,a new ambiguity set is built to characterize the uncertainties in the renewable energy and wireless traffic demands according to interval sets of the mean and *** this ambiguity set,the original optimization problem is transformed into a more tractable second-order cone programming problem by exploiting the distributionally robust optimization ***,a low-complexity distributionally robust chance-constrained energy management algo-rithm,which requires only interval sets of the mean and covariance of stochastic parameters,is *** results of extensive simulation are presented to demonstrate that the proposed algorithm outperforms existing methods in terms of the computational complexity,energy cost,and reliability.

关键词： Cellular networks Energy harvesting Energy management Chance-constrained Distributionally robust optimization

来源：评论

学校读者我要写书评

暂无评论

Edge detection method based on PCNN

Edge detection method based on PCNN

引用

International Conference on Wavelet Active Media technology and Information Processing (ICWAMTIP)

作者： Xiaolong Tang Zhongyu Tao Panshi Tang Jianping Li School of Computer Science and Engineering University of Electronic and Technology of China Chengdu China Chongqing Key Lab of Computer Network and Communication Technology

ISBN: (纸本)9781479972098

Pulse-Coupled Neural network is known as third generation artificial neural network. It is created by visual cortex neurons, a synchronous pulse release phenomenon of mammals. Compare to traditional artificial neural network, PCNN has the characteristics of dynamic neural network, integrated space-time, automatic propagation and synchronous pulse release. PCNN has tendency for image retention information and edge detection.

关键词： Image edge detection Neurons Biological neural networks Visualization Ignition Computational modeling

来源：评论

学校读者我要写书评

暂无评论

A NEW APPROACH TO DVC COMBINED WITH ROI EXTRACTION AND RESIDUAL VIDEO CODING FOR MULTIMEDIA SENSOR networkS

引用

Journal of Electronics(China) 2013年第1期30卷 17-24页

作者： Lin Zhaoxiao Sun Lijuan Xiao Fu Wang Ruchuan College of Computer Nanjing University of Posts and Telecommunications Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Key Lab of Broadband Wireless Communication and Sensor Network Technology (Nanjing University of Posts and Telecommunications) Ministry of Education Jiangsu Province

The Wyner-Ziv distributed video coding scheme is characterized for its intraframe encoder and interframe decoder which can also approach the efficiency of an interframe encoder-decoder system. In Wyner-Ziv residual coding of video, the residual of a frame with respect to a reference frame is Wyner-Ziv encoded, which can reduces the input entropy and leads to a higher coding efficiency than directly encoding the original frame. In this paper, we propose a new approach of residual coding combined with Region Of Interest (ROI) extraction. Experimental results show that, the proposed scheme achieves better rate-distortion performance compared to conventional Wyner-Ziv coding scheme.

关键词： Distributed Video Coding (DVC) Residual video coding Region Of Interest (ROI)

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：