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2019 UK/ China Emerging Technologies (UCET)最新文献

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Radio Spectrum Occupancy Measurement from 30MHz-1030MHz in Pakistan 巴基斯坦30MHz-1030MHz的无线电频谱占用测量
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881891
Mohammad Daniyal Zulfiqar, Khalid Ismail, N. Hassan, S. Hussain, Meng Zhang
Cognitive radio (CR) technologies can be used to harvest unoccupied spectrum bands to meet the growing data rate demands of many emerging Internet of Things (IoT) and smart grid applications. In Pakistan, radio spectrum from 30MHz-1030MHz has been allocated to various services including analog TV broadcasts and cellular operators. In this paper, we attempt to quantify actual spectrum usage in these bands in order to gauge the potential of CR based services. Such measurement campaigns and spectrum occupancy results are largely unavailable for Pakistan. In our survey, we study the 24 hour spectrum usage pattern with measurements taken over 10 weekday periods at our university campus in Lahore. Our results reveal that on average very large amount of spectrum remains unoccupied for most of the time at the site of our study. Radio spectrum in the range of 30MHz-174MHz showed highest variation in the utilization rate ranging from 2.56% to 95%. More than two third of the spectrum in the range of 174MHz-850MHz remained severely under-utilized in our observations. The spectrum in the range of 850MHz-1030MHz occupied by the cellular operators had relatively high minimum occupancy of 25% with an average spectrum occupancy of only 35.41%. These observations call for more efficient allocation and utilization of radio spectrum in Pakistan.
认知无线电(CR)技术可用于收集未占用的频段,以满足许多新兴物联网(IoT)和智能电网应用日益增长的数据速率需求。在巴基斯坦,30MHz-1030MHz的无线电频谱已分配给各种业务,包括模拟电视广播和移动电话运营商。在本文中,我们试图量化这些频段的实际频谱使用情况,以衡量基于CR的业务的潜力。巴基斯坦基本上没有这种测量活动和频谱占用结果。在我们的调查中,我们研究了24小时频谱使用模式,在拉合尔大学校园的10个工作日内进行了测量。我们的研究结果表明,在我们研究的地点,在大多数时间里,平均有大量的频谱仍未被占用。30MHz-174MHz频段的无线电频谱利用率变化最大,从2.56%到95%不等。在我们的观测中,174MHz-850MHz范围内超过三分之二的频谱仍然严重未得到利用。蜂窝运营商占用的850MHz-1030MHz频段的频谱最低占用率相对较高,为25%,平均频谱占用率仅为35.41%。这些观察结果要求巴基斯坦更有效地分配和利用无线电频谱。
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引用次数: 2
Intrusion Detection Using Swarm Intelligence 基于群体智能的入侵检测
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881840
Ayyaz-Ul-Haq Qureshi, H. Larijani, Abbas Javed, Nhamo Mtetwa, Jawad Ahmad
Recent advances in networking and communication technologies have enabled Internet-of-Things (IoT) devices to communicate more frequently and faster. An IoT device typically transmits data over the Internet which is an insecure channel. Cyber attacks such as denial-of-service (DoS), man-in-middle, and SQL injection are considered as big threats to IoT devices. In this paper, an anomaly-based intrusion detection scheme is proposed that can protect sensitive information and detect novel cyber-attacks. The Artificial Bee Colony (ABC) algorithm is used to train the Random Neural Network (RNN) based system (RNN-ABC). The proposed scheme is trained on NSL-KDD Train+ and tested for unseen data. The experimental results suggest that swarm intelligence and RNN successfully classify novel attacks with an accuracy of 91.65%. Additionally, the performance of the proposed scheme is also compared with a hybrid multilayer perceptron (MLP) based intrusion detection system using sensitivity, mean of mean squared error (MMSE), the standard deviation of MSE (SDMSE), best mean squared error (BMSE) and worst mean squared error (WMSE) parameters. All experimental tests confirm the robustness and high accuracy of the proposed scheme.
网络和通信技术的最新进展使物联网(IoT)设备能够更频繁、更快地进行通信。物联网设备通常通过互联网传输数据,这是一个不安全的通道。拒绝服务(DoS)、中间人(man-in-middle)、SQL注入(SQL injection)等网络攻击被认为是物联网设备的重大威胁。本文提出了一种基于异常的入侵检测方案,既能保护敏感信息,又能检测出新的网络攻击。采用人工蜂群(Artificial Bee Colony, ABC)算法训练基于随机神经网络(Random Neural Network, RNN)的系统。该方案在NSL-KDD Train+上进行了训练,并对未见数据进行了测试。实验结果表明,群体智能和RNN对新型攻击进行了分类,准确率达到91.65%。此外,利用灵敏度、均方误差均值(MMSE)、均方误差标准差(SDMSE)、最佳均方误差(BMSE)和最差均方误差(WMSE)参数,将该方案与基于混合多层感知器(MLP)的入侵检测系统进行性能比较。实验结果表明,该方法具有较高的鲁棒性和精度。
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引用次数: 15
The Selected Samples Effect on the Projection Matrix to Estimate the Direction of Arrival 选取样本对投影矩阵估计到达方向的影响
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881846
M. Al-Sadoon, Basman M. Al-Nedawe, M. Bin-Melha, Raed A. Abd-Alhammed
The way and size of matrix sampling have significant effects on the obtained eigen/singular values and the corresponding eigen/singular vectors of the sample matrix. Thus, this work analyzes and investigates these effects on the Angle of Arrival (AoA) estimation accuracy. To this end, the covariance matrix is sampled with different sub-matrices sizes. The obtained sampled matrices are used to construct the projection matrices. At each formed projection matrix, the Singular Value Decomposition (SVD) is applied to calculate the singular values of the signal subspace to show the sampling impact. It is demonstrated with the same array aperture size, output Signal to Noise Ratio (SNR) and the number of snapshots, the power can be increased by increasing only number of sampled rows/columns in the matrix projection construction stage. This, in turn, improves the estimation accuracy of the AoA methods. Numerical simulation examples are given to justify this claim. The results are presented and discussed.
矩阵采样的方式和大小对得到的样本矩阵的特征/奇异值和相应的特征/奇异向量有重要的影响。因此,本文分析和研究了这些因素对到达角(AoA)估计精度的影响。为此,用不同大小的子矩阵对协方差矩阵进行采样。得到的采样矩阵用于构造投影矩阵。在每个形成的投影矩阵上,应用奇异值分解(SVD)计算信号子空间的奇异值,以表示采样影响。结果表明,在阵列孔径大小、输出信噪比(SNR)和快照数相同的情况下,在矩阵投影构建阶段仅增加采样行/列数即可提高功率。这反过来又提高了AoA方法的估计精度。数值模拟实例证明了这一说法。给出了实验结果并进行了讨论。
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引用次数: 3
Clustering Algorithm in Vehicular Ad-hoc Networks: A Brief Summary 车载Ad-hoc网络中的聚类算法综述
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881833
Kang Tan, J. Kernec, M. Imran, D. Bremner
An Intelligent Transportation System (ITS) application requires vehicles to be connected to each other and to roadside units to share information, thus reducing fatalities and improving traffic congestion. Vehicular Ad hoc Networks (VANETs) is one of the main forms of network designed for ITS in which information is broadcasted amongst vehicular nodes. However, the broadcast reliability in VANETs face a number of challenges - dynamic routing being one of the major issues. Clustering, a technique used to group nodes based on certain criteria, has been suggested as a solution to this problem. This paper gives a summary of the core criteria of some of the clustering algorithms issues along with a performance comparison and a development evolution roadmap, in an attempt to understand and differentiate different aspects of the current research and suggest future research insights.
智能交通系统(ITS)的应用要求车辆相互连接,并与路边单位共享信息,从而减少死亡人数,改善交通拥堵。车辆自组织网络(VANETs)是为ITS设计的主要网络形式之一,其中信息在车辆节点之间广播。然而,vanet的广播可靠性面临着许多挑战,动态路由是其中的主要问题之一。聚类是一种用于根据特定标准对节点进行分组的技术,已被建议作为解决此问题的方法。本文总结了一些聚类算法问题的核心标准,并进行了性能比较和发展演变路线图,试图理解和区分当前研究的不同方面,并提出未来的研究见解。
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引用次数: 1
Demonstration of a Smart Villa Energy Monitoring Platform in Qatar 智能别墅能源监测平台在卡塔尔的演示
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881883
Olivier Van Cutsem, I. S. Bayram, M. Kayal, Jean-Charles Fosse
In this paper, we present an overview of smart villa energy monitoring platform deployed in Qatar. The platform collects electricity consumption, indoor climate (temperature, humidity), and occupancy data in real time using energy monitors and smart sensors. Data is sent to our server located in Switzerland where energy management simulations are performed. The developed platform presents a low cost energy monitoring and management platform for residential units
在本文中,我们介绍了在卡塔尔部署的智能别墅能源监测平台的概述。该平台使用能源监视器和智能传感器实时收集用电量、室内气候(温度、湿度)和占用数据。数据被发送到我们位于瑞士的服务器,在那里进行能源管理模拟。所开发的平台为住宅单元提供了一个低成本的能源监测与管理平台
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引用次数: 4
Experimental Investigation of Empty Substrate Integrated Waveguide-Fed MMW Patch Antenna for 5G Applications 5G空基板集成波导馈电毫米波贴片天线实验研究
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881881
Z. U. Khan, Á. Belenguer, T. Loh, A. Alomainy
This paper presents the fabrication and experimental validation of an Empty Substrate Integrated Waveguide fed microstrip patch antenna for millimeter-wave frequencies, targeting at 28 GHz. The proposed antenna is fabricated and measured for both transverse and longitudinal slot configurations. The fabricated prototypes for both configurations are measured for experimental results in terms of return loss (∣S11∣), realized gain and efficiency. Good agreement between the simulated and measured results validate the design.
本文介绍了一种用于毫米波频率的空基板集成波导馈电微带贴片天线的制作和实验验证,目标为28ghz。所提出的天线制作和测量的横向和纵向槽配置。对两种配置的制造原型进行了回波损耗(∣S11∣),实现增益和效率方面的实验结果测量。仿真结果与实测结果吻合良好,验证了设计的正确性。
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引用次数: 3
Remote Condition Monitoring: A Prototype Based on Pycom Development Board FiPy and Pysense 基于Pycom开发板FiPy和Pysense的远程状态监测原型
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881870
Andréa Voisin-Grall, Obabiolorunkosi Olaoluwapo Malaolu, Yingbo Zhu, Tanveer Ahmed, Shahriar Abdullah Al-Ahmed, Muhammad Zeeshan Shakir
Internet of Things (IoT) is not new in the market; however, they are becoming more dominant in various operations and applications. These pervasive infrastructures can collect different data in a given environment such as temperature, pressure, light sensitivity, and so on to enable remote condition monitoring. Subsequently, these collected data can be used for many purposes depending on the user's requirement. Currently, there are colossal interests from researchers to know how to use these infrastructures to collect and send data over different protocols to the cloud for efficient remote handling from anywhere in the world. In this paper, we design and implement an infrastructure based on Pycom development board FiPy and sensor shield Pysense to collect and send data to the remote cloud over Wi-Fi and Long Range (LoRa) protocols. The intelligible set up is beneficial for observing and managing data in the cloud.
物联网(IoT)在市场上并不新鲜;然而,它们在各种操作和应用中越来越占主导地位。这些无处不在的基础设施可以收集给定环境中的不同数据,如温度、压力、光敏度等,从而实现远程状态监控。随后,这些收集到的数据可以根据用户的需求用于多种目的。目前,研究人员对如何使用这些基础设施通过不同的协议收集和发送数据到云进行有效的远程处理非常感兴趣。在本文中,我们设计并实现了一个基于Pycom开发板FiPy和传感器屏蔽Pysense的基础设施,通过Wi-Fi和远程(LoRa)协议收集和发送数据到远程云。易于理解的设置有利于观察和管理云中的数据。
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引用次数: 3
UWB-RTK Positioning System Based on TDOA 基于TDOA的UWB-RTK定位系统
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881835
Peng Zhao, Xiaozhang Zhu, Ling He, Ziyan Yang, Siming Zuo, Zhiqin Zhao
To acquire the high accuracy position information, a difference UWB-TDOA positioning system is proposed. Referring to the working principle of GNSS-RTK, the difference UWB positioning system is developed to decrease the synchronization error and system stability is promoted. System experiments prove that the proposed system could increase positioning accuracy and achieve accuracy of 10cm.
为了获取高精度的位置信息,提出了一种差分UWB-TDOA定位系统。参考GNSS-RTK的工作原理,开发了差分超宽带定位系统,以减小同步误差,提高系统稳定性。系统实验证明,该系统可以提高定位精度,达到10cm的精度。
{"title":"UWB-RTK Positioning System Based on TDOA","authors":"Peng Zhao, Xiaozhang Zhu, Ling He, Ziyan Yang, Siming Zuo, Zhiqin Zhao","doi":"10.1109/UCET.2019.8881835","DOIUrl":"https://doi.org/10.1109/UCET.2019.8881835","url":null,"abstract":"To acquire the high accuracy position information, a difference UWB-TDOA positioning system is proposed. Referring to the working principle of GNSS-RTK, the difference UWB positioning system is developed to decrease the synchronization error and system stability is promoted. System experiments prove that the proposed system could increase positioning accuracy and achieve accuracy of 10cm.","PeriodicalId":169373,"journal":{"name":"2019 UK/ China Emerging Technologies (UCET)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123643248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Coverage Analysis for Indoor-Outdoor Coexistence for Millimetre-Wave Communication 毫米波通信室内外共存的覆盖分析
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881890
A. Turkmen, Michael S. Mollel, Metin Öztürk, Yao Sun, Lei Zhang, R. Ghannam, M. Imran
Milimeter-wave (mm-wave) communication, which has already been a part of the fifth generation of mobile communication networks (5G), would result in ultra dense small cell deployments due to its limited coverage characteristics. In such an environment, outdoor base stations (BS) will get closer to the buildings, in which users are covered and served by indoor small cells that in turn degrades the user Quality of Experience (QoE) owing to the increased interference caused by the outdoor BSs. In this paper, indoor coverage analysis is conducted by considering a scenario, which includes a multi-storey building and two identical indoor femtocell and outdoor BS operating at 28 GHz. During the simulations, impacts of the outdoor BS's transmit power and distance to the building on the indoor coverage are investigated. In addition, various material types, namely one layer brick, International Telecommunication Union (ITU) 28 GHz concrete, ITU 28 GHz glass, and ITU 28 GHz wood, for the building walls are tested. Results reveal that dielectric properties of the materials are the key factors in determining the severity of the interference caused by the outdoor BS, paving the way for including the effects of material type in network designing and smart city planning.
毫米波通信已经成为第五代移动通信网络(5G)的一部分,由于其有限的覆盖特性,将导致超密集的小蜂窝部署。在这样的环境下,室外基站将离建筑物更近,而用户被室内小基站覆盖和服务,而由于室外基站造成的干扰增加,反过来又降低了用户的体验质量。本文通过考虑一个场景进行室内覆盖分析,该场景包括一个多层建筑和两个相同的室内femtocell和室外BS,工作在28ghz。在仿真过程中,研究了室外BS的发射功率和距离对室内覆盖的影响。此外,还测试了用于建筑墙壁的各种材料类型,包括单层砖、国际电信联盟(ITU) 28 GHz混凝土、国际电信联盟(ITU) 28 GHz玻璃和国际电信联盟(ITU) 28 GHz木材。结果表明,材料的介电性能是决定室外BS干扰严重程度的关键因素,为在网络设计和智慧城市规划中纳入材料类型的影响铺平了道路。
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引用次数: 5
The Design of a Customised Portable BCI Headset for Home Based Neurorehabilitation 用于家庭神经康复的定制便携式脑机接口耳机的设计
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881863
Nina Petric-Gray, Craig Whittet, Tiejun Liu, A. Vučković
This project aims to design a new portable Brain Computer Interface (BCI) headset that can be used by non-professionals (patients, caregivers) as part of BCI therapeutic applications in the home environment. The suitability of the design of the new headset under its operating conditions was evaluated through use of mechanical testing in Computer Aided Design (CAD) software and physical prototypes. Extensive use of CAD based design was used to create a novel testbed for future prototypes of BCI headsets. We present a solution for optimised hardware design of the BCI headset which incorporates existing electronic components (dry electrodes, portable amplifier, battery etc.)
本项目旨在设计一种新的便携式脑机接口(BCI)耳机,可由非专业人员(患者,护理人员)使用,作为家庭环境中BCI治疗应用的一部分。通过计算机辅助设计(CAD)软件中的机械测试和物理原型,评估了新耳机设计在其操作条件下的适用性。广泛使用基于CAD的设计,为未来的BCI耳机原型创建了一个新的测试平台。我们提出了一种优化BCI耳机硬件设计的解决方案,该解决方案结合了现有的电子元件(干电极,便携式放大器,电池等)。
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引用次数: 0
期刊
2019 UK/ China Emerging Technologies (UCET)
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