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2018 Global Wireless Summit (GWS)最新文献

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Smart Wireless Communication System for Traffic Management and Localization 交通管理与定位的智能无线通信系统
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686652
Jetendra Joshi, Nishchay Grover, P. Medikonda, Vinod Gujral
In past two decades there has been a significant increase in the number of accidents in India. This is because of the increase in number of vehicles on road and improper functioning of traffic guidelines. Now, because the increase in the traffic congestion. Accidents on the road results in massive traffic congestions and unbalanced traffic flow on the roads thus leading to more problems. To solve this issue, we have presented an idea in form of solution in this paper. The solution uses technological development of Device to Device (D2D) communication. It solves two major problems which are low bandwidth and unbalanced traffic flow. Therefore, this paper presents an algorithm, which uses LTE and Lora WAN for solving the problem. The algorithm uses intelligent switching between communication technologies for sending packets to increase the speed of communication with having low bandwidth in hand.
在过去的二十年里,印度的交通事故数量显著增加。这是因为道路上车辆数量的增加和交通指南的不适当运作。现在,因为交通堵塞的增加。道路上的交通事故导致了大规模的交通拥堵和道路上交通流量的不平衡,从而导致了更多的问题。为了解决这一问题,本文以解决方案的形式提出了一个思路。该解决方案采用了设备到设备(D2D)通信技术的发展。它解决了低带宽和流量不均衡两大问题。因此,本文提出了一种利用LTE和Lora WAN技术解决这一问题的算法。该算法利用通信技术之间的智能切换来发送数据包,从而在带宽较低的情况下提高通信速度。
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引用次数: 1
3D Channel Spatial Characteristic Emulation in Multi-Probe Anechoic Chamber Setups 多探头消声室三维通道空间特性仿真
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686720
Ruru Wang, Weimin Wang, Yongle Wu, Yuan’an Liu, Bojun Zhang
This paper provides the emulated channel transfer functions for the plane wave synthesis (PWS) and the prefaded signals synthesis (PFS) in 3D multi-probe anechoic chamber (MPAC) setups. Furthermore, the emulated spatial correlation functions (SCFs) for the two methods are deduced according to the respective channel transfer functions. The expressions derived in this paper are applicable for any spherical power spectrum. The target channel model utilized in this paper is 3D geometry-based stochastic channel models. The accuracies of the 3D emulated channel models with PWS and PFS in terms of the root mean square (rms) of the SCF error under different 3D channel settings are investigated. Some new conclusions about the two methods are obtained. Simulation results demonstrate that PWS proceeds PFS for most channel settings in 3D MPAC setups. Especially when the mean zenith angle of arrival of the cluster is not from the horizontal plane, PWS provides more accurate results. In addition, the relationship between the emulation accuracy and the zenith angle spread of arrival of the cluster is different from that between the emulation accuracy and the azimuth angle spread of arrival of the cluster.
本文给出了三维多探头消声室(MPAC)装置中平面波合成(PWS)和前置信号合成(PFS)的仿真通道传递函数。在此基础上,根据信道传递函数推导了两种方法的空间相关函数。本文导出的表达式适用于任何球面功率谱。本文采用的目标信道模型是基于三维几何的随机信道模型。研究了基于PWS和PFS的三维仿真通道模型在不同通道设置下SCF误差均方根的精度。对这两种方法得到了一些新的结论。仿真结果表明,在3D MPAC设置中,PWS对大多数通道设置进行PFS。特别是当星团的平均天顶角不在水平面上时,PWS提供了更准确的结果。此外,仿真精度与集群到达的天顶角扩展之间的关系与仿真精度与集群到达的方位角扩展之间的关系不同。
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引用次数: 1
Learner Classification Method for Senior Learning with Decision Tree: A Case Study of Thai Senior 基于决策树的老年人学习学习者分类方法——以泰国老年人为例
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686498
Kanchana Boontasri, P. Temdee
The Andragogy theory has been suggested that the learning of the senior is different from the child. A senior has more experiences, self-understanding, precise achievement, and advantage in daily life. However, age increasing hurts learning performance. Besides the age factor, other factors can be considered such as gender, education level, internet usage time, health problems, vision problems, hearing loss, memory loss, and congenital disease. Therefore, this study proposes the machine learning-based method for classifying senior learners. In this case, the decision tree model is used. This study is conducted with 60 seniors aged 60–83 years old from the Senior School in Chiang Rai. For this study, four groups of senior learners are determined including Professional, Medium, Less Knowledge, and No Experience learner. The method with scores of performance relied on the learning ability of a person and the method with personal profile factors are studied and compared. The classification results show that the score based and the factor based method provide 95.00% and 91.67% accuracy respectively. Additionally, the results of the factor based method show that the significant factors contributing to learner classification are the amount of the internet using time, memory problems, the number of programs uses, and age respectively.
心理学理论认为,老年人的学习不同于儿童。高年级学生经验丰富,有自知之明,成绩精准,在日常生活中有优势。然而,年龄增长会损害学习成绩。除了年龄因素外,还可以考虑其他因素,如性别、教育程度、互联网使用时间、健康问题、视力问题、听力丧失、记忆力丧失和先天性疾病。因此,本研究提出了基于机器学习的高级学习者分类方法。在这种情况下,使用决策树模型。本研究是在清莱高中的60名60 - 83岁的老年人中进行的。本研究将高级学习者分为专业学习者、中等学习者、低知识学习者和无经验学习者四组。研究比较了基于个人学习能力的成绩分数法和基于个人概况因素的成绩分数法。分类结果表明,基于评分法和基于因子法的分类准确率分别为95.00%和91.67%。此外,基于因素的方法的结果表明,对学习者分类有显著影响的因素分别是互联网使用时间的数量、记忆问题、使用程序的数量和年龄。
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引用次数: 4
Characterization of Wireless Power Transfer Measurement at 2.45 GHz 2.45 GHz无线功率传输测量特性
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686714
Thanadol Tiengthong, S. Promwong
Wireless sensor network has been developing rapidly. Internet of Things (IoT) is a major role for the next generation of wireless communication system. However, the power consumption and lifetime of the battery are a limitation for the IoT device. Wireless Power Transfer (WPT) is a promising technology to solve the problem due to it can be the ubiquitous power source for the IoT devices by provide the energy via the propagation of radiowaves. The 2.45 GHz ISM is a popular frequency bandwidth which widely used in WiFi application which make it easy to use. The performance of the propagation can evaluate by various parameter. Receive power is use to analyze the efficiency of the radio frequency transmission. Therefore, this paper has been evaluated the WPT measurement data with difference separate distance between antennas at 2.45 GHz. By using the meander line antenna as the transmit antenna and receive antenna. Vector network analyzer (VNA) is used to measure and record the transfer function. The receive power which analyze the measurement data by using link budget equation. The results have shown good agreement between the simulation and measurement result which have the average of measurement result less than the simulation result around 2 dB.
无线传感器网络发展迅速。物联网(IoT)是下一代无线通信系统的主要角色。然而,电池的功耗和寿命是物联网设备的限制。无线电力传输(WPT)是解决这一问题的一种很有前途的技术,因为它可以通过无线电波的传播提供能量,成为物联网设备无处不在的电源。2.45 GHz的ISM是一个流行的频率带宽,广泛用于WiFi应用,使其易于使用。传播性能可以用各种参数来评价。接收功率用于分析射频传输的效率。因此,本文对2.45 GHz下天线间间隔距离不同的WPT测量数据进行了评价。采用弯曲线天线作为发射天线和接收天线。矢量网络分析仪(VNA)用于测量和记录传递函数。利用链路预算方程分析了测量数据的接收功率。仿真结果与测量结果吻合较好,测量结果的平均值小于仿真结果2 dB左右。
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引用次数: 0
An E-Health Enterprise Architecture Framework: Integration of Thailand Case 电子医疗企业架构框架:泰国案例整合
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686514
T. Mayakul, S. Kiattisin
Enterprise architecture (EA) is the solution to improve efficacy and enhance the transparency. EA serves the integration between business, technology, and management focusing on policy alignment. This study presents an e-Health framework based on the EA concept and the digital disruption. The framework assumption is the connected health system. The framework has been designed through comprehensive literature review as well as qualitative evaluation consisting of eight major layers. The strategy layer includes the governance and health policy. The business layer covers on e-service and health data with citizen participation. The technology and infrastructure offer the supporting platform to link the application and service. The last component is the regulation including health index and e-healthcare standard to enable the data communication within the system. The framework demonstrates the integrated enterprise architecture would contribute to promote interoperability and transparency through the layers of data and e-service. Moreover, the point of care is identified as the system key driver to create the people centric health system. The qualitative evaluation confirms the completeness and agreement of the framework. It would generate benefits on health management and public participation in term of good governance and service improvement.
企业架构(EA)是提高效率和增强透明度的解决方案。EA服务于业务、技术和管理之间的集成,专注于策略一致性。本研究提出了一个基于EA概念和数字化颠覆的电子健康框架。框架假设是互联医疗系统。通过全面的文献综述和定性评价,设计了八个主要层次的框架。策略层包括治理和运行状况策略。业务层涵盖公民参与的电子服务和健康数据。技术和基础设施提供了连接应用程序和服务的支持平台。最后是规范,包括健康指数和电子医疗标准,以实现系统内的数据通信。该框架展示了集成的企业架构将有助于通过数据层和电子服务层促进互操作性和透明度。此外,护理点被确定为创建以人为本的卫生系统的系统关键驱动因素。定性评价证实了框架的完整性和一致性。就善治和改善服务而言,这将对保健管理和公众参与产生益处。
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引用次数: 5
An Improved BHC Caching Strategy Based on ICN 一种改进的基于ICN的BHC缓存策略
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686673
S. Jing, Muqing Wu, Jiangwei Shen, Zhao Min
With the development of modern communication technology, the traditional power grid can no longer meet the needs of massive electricity data collection and processing. Adapting to this change, the Information-Centric Networking is combined with the power communication network. We studied several cache strategies in Information-Centric Networking and then proposed an improved cache scheme based on betweenness and hops. Finally, the improved cache strategy is compared with three other strategies. The simulation results showed that the repetition rate of content traffic is effectively reduced and the performance of power network can be optimized using the improved strategy.
随着现代通信技术的发展,传统电网已不能满足海量电力数据采集和处理的需要。为适应这一变化,以信息为中心的网络与电力通信网络相结合。研究了以信息为中心的网络中的几种缓存策略,提出了一种基于间隔和跳数的改进缓存方案。最后,将改进的缓存策略与其他三种策略进行了比较。仿真结果表明,该改进策略有效地降低了内容流量的重复率,优化了电网的性能。
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引用次数: 0
Evaluation of Indoor Localization with Range-Free Weighted Localization Algorithm 基于无距离加权定位算法的室内定位评价
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686617
Jutamas Thongkam, P. Supanakoon, S. Promwong
Currently, Ultra-wide band has important in the role of the short-range communication, especially in, an indoor localization. However, there are more factors of the indoor environment caused to reduce the precise localization and also increase the error of distance. The presents a new weighted to evaluate the UWB technology for the indoor localization. The proposed methods are using received signal strength indicator (RSSI) to compute the error of distance based on weighting algorithms. Whereby the weight centroid localizer (WCL) is proposed in this paper. As the results, the cumulative distribution function (CDF) probability indicates the error of distance as properly, and this method can help to increase the precision of range based localization method in an application of indoor environment.
目前,超宽带在近距离通信特别是室内定位中发挥着重要的作用。然而,室内环境因素较多,导致定位精度降低,距离误差增大。提出了一种新的评价超宽带室内定位技术的加权方法。提出的方法是利用接收信号强度指标(RSSI)来计算基于加权算法的距离误差。为此,本文提出了一种质心定位器(WCL)。结果表明,累积分布函数(CDF)概率较好地反映了距离误差,有助于提高基于距离的定位方法在室内环境中的应用精度。
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引用次数: 5
Capture of UAVs Through GPS Spoofing 通过GPS欺骗捕获无人机
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686727
João Gaspar, Renato Ferreira, P. Sebastião, N. Souto
The increased use of Unmanned Aerial Vehicles (UAVs), better known as drones, by civilians has grown exponentially and its autonomous flight control systems have improved significantly, which has resulted in a greater number of accidents and dangerous situations. In this paper, we address the use of low-cost programmable Software Defined Radio (SDR) platforms for simulating a Global Navigation Satellite System (GNSS), more specifically Global Positioning System (GPS) signals, in order to transmit false signals and induce a location error on the targeted GPS receiver. Using this approach, a defensive system was implemented which can divert, or even take control of unauthorized UAVs whose flight path depends on the information obtained by the GPS system.
民用无人机(uav)的使用呈指数级增长,其自主飞行控制系统得到了显着改进,这导致了更多的事故和危险情况。在本文中,我们讨论了使用低成本的可编程软件定义无线电(SDR)平台来模拟全球导航卫星系统(GNSS),更具体地说是全球定位系统(GPS)信号,以便在目标GPS接收器上传输虚假信号并诱导位置错误。利用这种方法,实现了一种防御系统,可以使未经授权的无人机改道,甚至控制其飞行路径取决于GPS系统获得的信息。
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引用次数: 23
Reinforcement Learning for Online Learning Recommendation System 在线学习推荐系统的强化学习
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686513
Wacharawan Intayoad, Chayapol Kamyod, P. Temdee
In the learning environment, individual learner requires flexible and suitable learning processes. Online learning should be able to recommend appropriate learning objects (LOs) to an individual in real-time. Most of the existing approaches of online learning recommendation systems are based on collaborative filtering methods. Such methods have a limitation on realtime adaption and require the prior knowledge of students and LOs. Therefore, this study proposes a real-time recommendation method which is suitable for flexible and complex environments. The proposed method is based on Reinforcement Learning problem. The method is able to explore the environment to get information and exploit the information to make a decision. We evaluate the proposed method with the real world data. We vary e-greedy, the learning rate, and the discount rate for a tradeoff between the exploration and exploitation.
在学习环境中,个体学习者需要灵活和合适的学习过程。在线学习应该能够实时向个人推荐合适的学习对象(LOs)。现有的在线学习推荐系统大多是基于协同过滤的方法。这种方法在实时适应方面存在局限性,并且需要学生和LOs的先验知识。因此,本研究提出了一种适合于灵活复杂环境的实时推荐方法。该方法基于强化学习问题。该方法能够探索环境以获取信息,并利用信息做出决策。我们用真实世界的数据来评估所提出的方法。我们改变了e-greedy,学习率,以及在探索和开发之间权衡的折现率。
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引用次数: 9
Communication Technology and Social Science Correlation 通信技术与社会科学相关
Pub Date : 2018-11-01 DOI: 10.1109/GWS.2018.8686649
D. Singh, R. Prasad
Advancements in communication technological development in various kinds of in, on and around human body sensors made easy to monitor and communicate via Wireless Body Area Networks (WBANs). It simplifies, and improves speed, accuracy, and reliability of communication of sensors/actuators within, on, warning mechanisms against abnormal conditions in the human body. Communication technology (CT) consists five parameters namely Communication, Connectivity, Convergence, Content and Cooperation, known as C5 concept, whereas, C5 concept for Social Science also having five basic elements, i.e., Concentration, Calmness, Confidence, Contentment and Creativity. The human being is suffering psychosomatic diseases due to stress and strain. This paper proposes a novel solution by correlating two C5 concepts of communication technology and human behavior.
随着通信技术的进步,各种人体内部、外部和周围传感器的发展使得通过无线体域网络(wban)进行监测和通信变得容易。它简化并提高了传感器/执行器内部通信的速度、准确性和可靠性,以及针对人体异常情况的警告机制。Communication technology (CT)包括Communication, Connectivity, Convergence, Content和Cooperation五个参数,称为C5概念,而社会科学的C5概念也有五个基本要素,即Concentration, calm, Confidence,满足感和Creativity。由于压力和紧张,人类正在遭受心身疾病。本文提出了一种新的解决方案,将通信技术和人类行为的两个C5概念联系起来。
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引用次数: 0
期刊
2018 Global Wireless Summit (GWS)
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