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2019 International Conference on Advances in the Emerging Computing Technologies (AECT)最新文献

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Optimum Placement of Conformal Antenna Array Based on Path Loss Profile 基于路径损耗曲线的共形天线阵优化布置
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194150
Hisham Khalil, M. M. Ahmed, U. Rafique, Reham Almesaeed, Waseem Nazar
In this paper, the optimum placement of a conformal antenna array based on the path loss profile has been discussed. The arrays are considered to be conformed on the wings and cylindrical fuselage of an Unmanned Aerial Vehicles (UAVs). Two types of feeding designs have been presented: Rectangular Waveguide (RWG) for fuselage conformal antenna array and Substrate Integrated Waveguide for wing conformal antenna array. The optimum placement of conformal arrays proposed on the basis of path loss profile for the air-to-air link (AA) and air-to-ground link (AG). The proposed arrays have been designed and simulated in Ansys HFSS and it has been observed that the proposed arrays offer gains of 11.15 dBi and 9.8 dBi for wing and fuselage, respectively.
本文讨论了基于路径损耗分布的共形天线阵的最佳布置。该阵列被认为是在无人机(uav)的机翼和圆柱形机身上一致的。提出了机身共形天线阵的矩形波导馈电设计和机翼共形天线阵的基板集成波导馈电设计。根据空对空链路(AA)和空对地链路(AG)的路径损耗分布,提出了共形阵的最佳布置。在Ansys HFSS中对所提出的阵列进行了设计和仿真,结果表明所提出的阵列对机翼和机身的增益分别为11.15 dBi和9.8 dBi。
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引用次数: 1
Distributed Linear Parameter Varying Model Predictive Controller with Event-Triggered Mechanism for Nonholonomic Mobile Robot 基于事件触发机制的非完整移动机器人分布式线性参数变模型预测控制器
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194191
Aries Subiantoro, Muhammad Hadi, A. Muis
This paper deals with the design of distributed linear parameter varying model predictive controller (LPVMPC) to solve consensus problem on nonholomonic model with event-triggered mechanism. The nonlinear dynamic of nonholomonic model is simplified into linear time variant model by discretizing with Euler method. A quadratic cost function is determined by including terminal state and varying weight matrices, in order to reduce offset due to modeling simplification. The control signal for very agents are calculated by solving quadratic programming problem. A local optimal state controller is integrated with LPV-MPC during eventtriggered mechanism. In order to reduce computational load, the predictive controller only performs optimization only when the trigger conditions are met. The proposed controller is also verified in case of numerical simulation test, and shown its capability to provide good response of nonholomonic mobile robot’s consensus protocol.
为解决具有事件触发机制的非全子模型的一致性问题,研究了分布式线性参数变模型预测控制器的设计。采用欧拉离散方法将非整体模型的非线性动力学简化为线性时变模型。通过包含终端状态和变权矩阵来确定二次代价函数,以减少由于建模简化而产生的偏移。通过求解二次规划问题,计算了每个智能体的控制信号。在事件触发机制中,LPV-MPC集成了一个局部最优状态控制器。为了减少计算量,预测控制器只在满足触发条件时才进行优化。通过数值仿真试验验证了所提出的控制器对非完整移动机器人协商一致协议的良好响应能力。
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引用次数: 0
Localization Error Computation for RSSI Based Positioning System in VANETs 基于RSSI的VANETs定位系统定位误差计算
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194192
Waqas Ahmad, Sheeraz Ahmed, Najia Sheeraz, Ayub Khan, A. Ishtiaq, Malka Saba
Vehicular Ad-hoc Networks (VANETs) is the most eminent field nowadays in Intelligent Transportation System. Applications included emergency alerts, positioning, and tracking of vehicles. Vehicle Localization in municipal areas is a major issue for protection applications. Many solutions have been provided including Global Positioning Systems (GPS) but these applications do not provide accuracy. Hence, a novel approach has been proposed here known as Received Signal Strength (RSS) Based Localization which aims to find accurate location of a target vehicle. It provides communication with Road Side Units (RSUs) by receiving signal within its range, and finds the average RSS. After the RSS has been found it is aided to the RSS Based Localization algorithm which finds accurate location of the vehicle. The main factor of proposed algorithm is its high signal to noise ratio which is obtained from the closest RSU. After the location of the vehicle is found, its Cramer Rao Lower Bound is analyzed. All the simulations performed shows that our suggested RSS based Localization are better than others traditional least squares and weighted least squares techniques.
车辆自组织网络(VANETs)是当今智能交通系统中最引人注目的领域。应用程序包括紧急警报、定位和车辆跟踪。车辆在城市区域的定位是保护应用的一个主要问题。已经提供了许多解决方案,包括全球定位系统(GPS),但这些应用程序不提供精度。因此,本文提出了一种新的方法,即基于接收信号强度(RSS)的定位,旨在找到目标车辆的准确位置。它通过接收其范围内的信号与路旁单位(rsu)进行通信,并计算平均RSS。在找到RSS后,辅助基于RSS的定位算法找到车辆的准确位置。该算法的主要特点是高信噪比,信噪比是由最接近的RSU获得的。在找到车辆位置后,对其Cramer Rao下界进行分析。仿真结果表明,本文提出的基于RSS的定位方法优于传统的最小二乘和加权最小二乘方法。
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引用次数: 4
A Cost Effective IoT-based System for Monitoring Baby Incidents by Deaf Parents 一个具有成本效益的基于物联网的聋人父母监测婴儿事件的系统
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194179
N. Bahbouh, A. Alkhodre, A. A. Sen, Abdallah Namoun, S. Albouq
The importance of modern technology is prevalent in our lives for it helps us achieve our everyday activities and tasks. People with special needs represent a significant segment of the society and always require some sort of assistance to make their lives as normal as possible. Indeed, technological advancements can be exploited to achieve this endeavor. In this research, deaf mothers are guided to detect the needs of their babies by employing the Internet of Things and a mobile application. This research proposes a new algorithm to monitor children during their sleep based on successive periodic snapshots or sound, and when detecting any change in their environment the smart monitoring system alerts the mother by shaking a wearable bracelet or ringing her mobile phone. The proposed system has been implemented and tested and has been proven to be superior to other systems with respect to the implementation cost, accuracy of alerts, flexibility, and energy consumption.
现代科技的重要性在我们的生活中很普遍,因为它帮助我们完成日常活动和任务。有特殊需要的人是社会的一个重要组成部分,他们总是需要某种帮助来使他们的生活尽可能地正常。事实上,技术进步可以用来实现这一目标。在本研究中,聋哑母亲通过物联网和移动应用程序来指导他们发现婴儿的需求。这项研究提出了一种新的算法,可以根据连续的周期性快照或声音来监控孩子的睡眠,当检测到环境的任何变化时,智能监控系统会通过摇晃可穿戴手镯或拨打手机来提醒母亲。该系统已被实施和测试,并已被证明在实施成本、警报准确性、灵活性和能耗方面优于其他系统。
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引用次数: 6
Supervised Topic Modeling Using Word Embedding with Machine Learning Techniques 使用词嵌入和机器学习技术的监督主题建模
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194177
Rana Nassif, Mohamed Waleed Fahkr
Large amounts of text are collected on the internet every day. As more text documents become available, it becomes essential to categorize them for efficient archiving, retrieval and search. In this paper, we investigate both statistical and machine learning techniques like (HMM & Deep learning network) combined with two well-known word embedding models (word2vec & Glove) for supervised document classification. The investigated combinations are compared with state-of-the-art approaches applied on the same data. The main contribution of this paper is to demonstrate the importance of both the meaning and the order of the word on topic modeling. This has often been overlooked in previous work as neither were taken into consideration where in some others only one was taken. This paper shows that one of our proposed models; which employed a hybrid between LSTM and CNN neural networks, obtained better accuracy on the same dataset than all state-of-the-art models in the literature.
每天在互联网上收集大量的文本。随着越来越多的文本文档变得可用,对它们进行分类以进行有效的归档、检索和搜索变得至关重要。在本文中,我们研究了统计和机器学习技术,如HMM和深度学习网络,结合两个著名的词嵌入模型(word2vec和Glove)进行监督文档分类。将所研究的组合与应用于相同数据的最先进方法进行比较。本文的主要贡献在于论证了语意和语序对主题建模的重要性。这一点在以前的工作中经常被忽视,因为两者都没有考虑到,而在其他一些工作中只考虑了一个。本文展示了我们提出的一个模型;它采用了LSTM和CNN神经网络的混合,在相同的数据集上获得了比文献中所有最先进的模型更好的准确性。
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引用次数: 2
Internet of Things: On the Opportunities, Applications and Open Challenges in Saudi Arabia 物联网:沙特阿拉伯的机遇、应用和公开挑战
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194213
Mohammad Ayoub Khan, M. Quasim, F. Algarni, Abdullah Alharthi
The role of the Internet has significantly changed due to the development in communication technologies. Nowadays, billions of people and physical devices are connected via Internet. In near future, storage and computational services will be more pervasive and distributed. Even in recent times, we can see that people, machines, objects, and platforms are connected with wireless or wired sensors. Considering such an internet setting with billions of connected devices, in this paper, we present a study on the background, state-of-the-art, growth, key players, applications, challenges, and future opportunities in the area of Internet of Things (IoT). The Kingdom of Saudi Arabia’s IoT and M2M (Machine to Machine) communication market is estimated to grow to $16.01 billion by 2019 from $4.88 billion in 2014[26]. We also discuss general aspects and issues of IoT and explore the implication of all these in a developing country’s setting taking the case of Saudi Arabia.
由于通信技术的发展,互联网的作用发生了重大变化。如今,数十亿人和物理设备通过互联网连接在一起。在不久的将来,存储和计算服务将更加普及和分布式。即使在最近,我们也可以看到人、机器、物体和平台都与无线或有线传感器相连。考虑到这样一个拥有数十亿连接设备的互联网环境,在本文中,我们对物联网(IoT)领域的背景、最新技术、增长、主要参与者、应用、挑战和未来机遇进行了研究。沙特阿拉伯王国的物联网和M2M(机器对机器)通信市场预计将从2014年的48.8亿美元增长到2019年的160.1亿美元[26]。我们还讨论了物联网的一般方面和问题,并以沙特阿拉伯为例,探讨了所有这些在发展中国家环境中的含义。
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引用次数: 4
A Novel Multi-Chaos Based Compressive Sensing Encryption Technique 一种新的基于多混沌的压缩感知加密技术
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194220
Jawad Ahmad, Ahsen Tahir, J. Khan, Atif Jameel, Q. Abbasi, W. Buchanan
Compressive sensing is a compression technique that can be effectively utilised in multimedia encryption. This paper proposes a new compressive sensing image encryption scheme using the Secure Hash Algorithm (SHA-512), Discrete Cosine Transform (DCT), orthogonal matrix and discrete Chirikov map-based random permutation. DCT is applied on a plaintext image and a block of DCT coefficients is multiplied with an orthogonal matrix. Inverse DCT and scaling are performed to restrict the values between 0 and 255. Furthermore, values are shuffled using Chirikov-based pseudo-random permutation. A strong trade-off exists between DCT block size and computational efficiency. The quality and Signal to Noise Ratio (SNR) of the decrypted image decreases when the size of the DCT matrix is reduced, increasing the speed of the encryption algorithm. An extensive security analyses of the proposed scheme are performed, which establishes the robustness, computational efficiency and security of the technique against cryptographic attacks.
压缩感知是一种可以有效应用于多媒体加密的压缩技术。利用安全哈希算法(SHA-512)、离散余弦变换(DCT)、正交矩阵和基于离散奇里科夫映射的随机置换,提出了一种新的压缩感知图像加密方案。将DCT应用于明文图像,并将DCT系数块与正交矩阵相乘。执行逆DCT和缩放以限制0到255之间的值。此外,使用基于chirikov的伪随机置换对值进行洗牌。DCT块大小和计算效率之间存在很强的权衡。随着DCT矩阵的减小,解密图像的质量和信噪比降低,提高了加密算法的速度。对所提出的方案进行了广泛的安全性分析,证明了该技术对密码攻击的鲁棒性、计算效率和安全性。
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引用次数: 6
Permissioned Blockchain-Based Security for SDN in IoT Cloud Networks 物联网云网络中基于区块链的SDN安全
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194181
S. Faizullah, Muhammad Asad Khan, Ali Alzahrani, Imdadullah Khan
The advancement in cloud networks has enabled connectivity of both traditional networked elements and new devices from all walks of life, thereby forming the Internet of Things (IoT). In an IoT setting, improving and scaling network components as well as reducing cost is essential to sustain exponential growth. In this domain, software-defined networking (SDN) is revolutionizing the network infrastructure with a new paradigm. SDN splits the control/routing logic from the data transfer/forwarding. This splitting causes many issues in SDN, such as vulnerabilities of DDoS attacks. Many solutions (including blockchain based) have been proposed to overcome these problems. In this work, we offer a blockchain-based solution that is provided in redundant SDN (load-balanced) to service millions of IoT devices. Blockchain is considered as tamper-proof and impossible to corrupt due to the replication of the ledger and consensus for verification and addition to the ledger. Therefore, it is a perfect fit for SDN in IoT Networks. Blockchain technology provides everyone with a working proof of decentralized trust. The experimental results show gain and efficiency with respect to the accuracy, update process, and bandwidth utilization.
云网络的进步使传统的网络元素和来自各行各业的新设备连接起来,从而形成了物联网(IoT)。在物联网环境中,改进和扩展网络组件以及降低成本对于维持指数级增长至关重要。在这个领域,软件定义网络(SDN)正在以一种新的范式彻底改变网络基础设施。SDN将控制/路由逻辑与数据传输/转发分离。这种分裂导致了SDN中的许多问题,例如DDoS攻击的漏洞。已经提出了许多解决方案(包括基于区块链的解决方案)来克服这些问题。在这项工作中,我们提供了一个基于区块链的解决方案,该解决方案通过冗余SDN(负载均衡)提供,为数百万个物联网设备提供服务。区块链被认为是防篡改的,由于分类帐的复制和对分类帐的验证和添加的共识,它不可能被破坏。因此,它非常适合物联网网络中的SDN。区块链技术为每个人提供了去中心化信任的有效证明。实验结果表明,该方法在精度、更新过程和带宽利用率方面具有较高的增益和效率。
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引用次数: 10
Remote Sensing Based Vegetation Classification Using Machine Learning Algorithms 基于机器学习算法的遥感植被分类
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194217
Arbab Mansoor Ahmad, N. Minallah, N. Ahmed, A. Ahmad, Nouman Fazal
Vegetation is one of the most important part of an ecosystem. It is responsible for providing oxygen and gets in carbon dioxide, hence providing a suitable place for the human beings to live. The information about this vegetation is very critical. Using remote sensing, this information can be taken and gathered and later on used for different purposes. This paper aims to classify vegetation into different types and categories. Three machine learning algorithms i.e. K-means, Support Vector Machine (SVM) and Artificial Neural Networks (ANN) have been used because of their being the most popular and well known algorithms of the current time to classify vegetation. K-means being unsupervised classifier is used to compare it to two supervised classifiers i.e. SVM and ANN. Non-vegetation including buildings, roads, rivers etc. are also classified into their respective categories. This classification can be useful in many ways. They can be used by government agencies and authorities to get information about the yield of a specific crop e.g. tobacco, maize etc. This information could be very useful for gathering statistics of the crop and its location on map. These locations can be used for extracting the crops and for future planning regarding it. The information about buildings and roads can help in town planning for future.
植被是生态系统最重要的组成部分之一。它负责提供氧气并吸收二氧化碳,因此为人类提供了适宜的居住环境。关于这些植被的信息是非常重要的。利用遥感,可以获取和收集这些信息,然后用于不同的目的。本文旨在将植被划分为不同的类型和类别。三种机器学习算法即K-means,支持向量机(SVM)和人工神经网络(ANN)被使用,因为它们是当前最流行和最知名的植被分类算法。使用K-means无监督分类器将其与SVM和ANN两种监督分类器进行比较。非植被包括建筑物、道路、河流等也被划分为各自的类别。这种分类在很多方面都很有用。它们可以被政府机构和当局用来获取有关特定作物(如烟草、玉米等)产量的信息。这些信息对于收集作物的统计数据及其在地图上的位置非常有用。这些地点可以用来提取农作物,并为未来的规划做准备。有关建筑物和道路的信息可以帮助未来的城镇规划。
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引用次数: 3
Smart System for Recognizing Daily Human Activities Based on Wrist IMU Sensors 基于腕部IMU传感器的人类日常活动智能识别系统
Pub Date : 2020-02-01 DOI: 10.1109/AECT47998.2020.9194154
A. Ayman, Omneya Attalah, H. Shaban
Recognizing daily human activity using machine learning techniques is of great interest to many researchers working in the field of human health monitoring. Recently, wearable sensors have been used extensively for human activity recognition (HAR) for their great ability for capturing human actions during his daily life. Wearable wrist sensors have the advantage of being easily and comfortably worn. Extracting multimodal data from such sensors could enhance recognition rates leading to a healthier life style. Machine learning (ML) techniques have exciting capabilities, and can be used to facilitate HAR process. In this paper, a new daily HAR system is proposed for accurately recognizing daily human activity based on multimodal data from a wearable IMU wrist sensor. Two publically available datasets are employed to examine its effectiveness. The results indicate that the proposed HAR system is competitive to other recent related HAR approaches. This proves that the proposed HAR system is robust and, can be used for health monitoring applications.
利用机器学习技术识别人类的日常活动是许多从事人类健康监测领域的研究人员非常感兴趣的问题。近年来,可穿戴传感器因其捕捉人类日常活动的能力而被广泛应用于人体活动识别(HAR)中。可穿戴式腕部传感器具有佩戴方便、舒适的优点。从这些传感器中提取多模态数据可以提高识别率,从而实现更健康的生活方式。机器学习(ML)技术具有令人兴奋的功能,可用于促进HAR过程。本文提出了一种基于可穿戴式IMU腕传感器的多模态数据准确识别人类日常活动的新型日常HAR系统。使用两个公开可用的数据集来检验其有效性。结果表明,本文提出的HAR系统具有较强的竞争力。结果表明,该系统具有较强的鲁棒性,可用于健康监测应用。
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引用次数: 4
期刊
2019 International Conference on Advances in the Emerging Computing Technologies (AECT)
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