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2020 International Conference on Advanced Technologies for Communications (ATC)最新文献

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7.6 µW Ambient Energy Harvesting Rectenna from LTE Mobile phone Signal for IoT Applications 用于物联网应用的LTE移动电话信号7.6 μ W环境能量收集整流天线
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255471
Thuy-Linh Nguyen, Y. Sato, K. Ishibashi
The paper presents a structure of an efficient RF energy harvesting (RFEH) rectenna that harvests available RF signals in the environment for the Internet of Thing (IoT) applications. In the system, the dynamic threshold MOSFET (DTMOS) structure is applied to a cross-coupled rectifier (CCR) in 65nm Silicon on Thin Buried Oxide (SOTB) technology to improve the efficiency of the rectifier. Besides, the RFEH system is designed to have a moderate Q factor and wide bandwidth to effectively harvest modulated signals in an ambient environment. A Yagi antenna is utilized to increase the RF input power of the system. The proposed rectenna is evaluated with an LTE 950 MHz band mobile phone signal from a base station in various measurement conditions. Experimental results show that the system can generate 3.5 µW DC power at an indoor condition, and 7.6 µW at an outdoor condition. The proposed system reaches the highest performance in comparison with other RFEH systems in the literature. The rectenna is suitable for utilizing ambient RF energy harvesting for IoT applications.
本文提出了一种高效射频能量收集(RFEH)整流天线的结构,该天线可以收集物联网(IoT)应用环境中可用的射频信号。在该系统中,将动态阈值MOSFET (DTMOS)结构应用于65nm硅薄埋氧化物(SOTB)技术的交叉耦合整流器(CCR)中,以提高整流器的效率。此外,RFEH系统设计具有适中的Q因子和较宽的带宽,可以在环境中有效地采集调制信号。利用八木天线增加系统的射频输入功率。在各种测量条件下,使用来自基站的LTE 950 MHz频段移动电话信号对所提出的整流天线进行了评估。实验结果表明,该系统在室内条件下可产生3.5µW的直流功率,在室外条件下可产生7.6µW的直流功率。与文献中的其他RFEH系统相比,所提出的系统达到了最高的性能。该整流天线适用于利用环境射频能量收集进行物联网应用。
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引用次数: 2
Performance Enhancement of Satellite FSO/QKD Systems using HAP-based Relaying and ARQ 基于hap中继和ARQ的卫星FSO/QKD系统性能增强
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255472
Nam D. Nguyen, Hang T. T. Phan, H. Pham, V. Mai, N. Dang
This paper proposes to use high-altitude platform (HAP)-based relaying and link-layer automatic repeat request (ARQ) techniques to improve the performance of the satellite quantum key distribution (QKD) over free-space optics (FSO) systems. We also develop analytical frameworks based on two 3D Markov chain models allowing us to comprehensively analyze the performance of the proposed system in terms of key loss rate and delay outage rate. Our performance analysis takes into account the physical layer impairments induced by FSO channel and receiver noise. Numerical results quantitatively demonstrate that the satellite FSO/QKD system using HAP-based relaying and link-layer ARQ techniques can offer considerable performance improvement over the conventional ones.
本文提出利用基于高空平台(HAP)的中继和链路层自动重复请求(ARQ)技术来提高卫星量子密钥分发(QKD)在自由空间光学(FSO)系统上的性能。我们还开发了基于两个3D马尔可夫链模型的分析框架,使我们能够从关键损失率和延迟中断率方面全面分析所提出系统的性能。我们的性能分析考虑了由FSO信道和接收机噪声引起的物理层损伤。数值结果定量地表明,采用基于hap中继和链路层ARQ技术的卫星FSO/QKD系统比传统的系统性能有很大的提高。
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引用次数: 0
Enhancing Quality for VVC Compressed Videos with Multi-Frame Quality Enhancement Model 用多帧质量增强模型提高VVC压缩视频的质量
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255448
Xiem HoangVan, Huu-Hung Nguyen
Versatile Video Coding (VVC) is the most recent video coding standard, released in July 2020 with two major purposes: (1) providing a similar perceptual quality as the current state-of-the-art High Efficiency Video Coding (HEVC) solution at around half the bitrate and (2) offering native flexible, high-level syntax mechanisms for resolution adaptivity, scalability, and multi-view. However, despite of the compression efficiency, the decoded video obtained with VVC compression still contains distortions and quality degradation due to the nature of the hybrid block and transform based coding approach. To overcome this problem, this paper proposes a novel quality enhancement method for VVC compressed videos where the most advanced deep learning-based multi-frame quality enhancement model (MFQE) is employed. In the proposed QE method, the VVC decoded video is firstly segmented into the peak quality and non-peak quality pictures. After that, a Long-short term memory and two sub-networks are created to achieve better quality video pictures. Experimental results show that, the proposed MFQE based VVC quality enhancement method is able to achieve important quality improvement when compared to the original VVC decoded video.
通用视频编码(VVC)是最新的视频编码标准,于2020年7月发布,有两个主要目的:(1)提供与当前最先进的高效视频编码(HEVC)解决方案相似的感知质量,但比特率约为一半;(2)为分辨率自适应、可扩展性和多视图提供本地灵活的高级语法机制。然而,尽管压缩效率很高,但由于基于块和变换的混合编码方法的性质,使用VVC压缩得到的解码视频仍然存在失真和质量下降的问题。为了克服这一问题,本文提出了一种新的VVC压缩视频的质量增强方法,该方法采用了最先进的基于深度学习的多帧质量增强模型(MFQE)。在该方法中,首先将VVC解码后的视频分割为峰值质量图像和非峰值质量图像。然后,创建一个长短期存储器和两个子网,以获得更高质量的视频图像。实验结果表明,本文提出的基于MFQE的VVC质量增强方法与原VVC解码视频相比,能够取得重要的质量提升。
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引用次数: 2
Ambient RF Energy Harvesting System Based on Wide Angle Metamaterial Absorber for Battery-Less Wireless Sensors 基于广角超材料吸收体的无电池无线传感器环境射频能量收集系统
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255477
Quang Minh Dinh, M. Le
In this paper, a wide – angle rectenna based on metamaterial absorber is proposed. By using the absorbing surface consists of multiple periodically arranged unit cells, the proposed ambient RF energy harvesting device can power sufficient DC power for a wireless sensor from the ambient RF sources in environment. The rectifiers employed in this rectenna system are optimized to have a RF-DC conversion efficiency of 38% and 50% at very low input power of -10 dBm and -5 dBm, respectively. The symmetric unit cells are designed to yield a high absorptivity at wide incident angle in both H plane and E plane and by attaching two rectifiers for each one of them, the device is able to achieve a wide – angle dual – polarized operation up to 140 degrees. Numerical simulations are conducted to validate the design while a comparison to previously introduced rectennas is also provided to elucidate the advantages of the ambient RF energy harvesting system in this work.
本文提出了一种基于超材料吸收体的广角整流天线。利用由多个周期性排列的单元组成的吸收面,所设计的环境射频能量收集装置可以从环境中的射频源中为无线传感器提供足够的直流电源。在极低的输入功率为-10 dBm和-5 dBm时,该整流器系统的RF-DC转换效率分别为38%和50%。对称的单晶片被设计为在H面和E面宽入射角下产生高吸收率,并且通过为每个单晶片附加两个整流器,该装置能够实现高达140度的广角双偏振操作。数值模拟验证了该设计,并与之前介绍的整流天线进行了比较,以阐明环境射频能量收集系统在本工作中的优势。
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引用次数: 1
An Early Termination Technique of Polar Codes for IR-HARQ Scheme IR-HARQ方案中极性码的早期终止技术
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255464
Krittiyaporn Mueadkhunthod, W. Phakphisut, L. Myint, P. Supnithi
In this work, we focus on polar codes in mobile communication systems where a retransmission strategy, namely, the incremental redundancy hybrid automatic repeat request (IR-HARQ) scheme, is performed. We propose an early termination (ET) of polar codes using the interleaved cyclic redundancy check (CRC) codes and the parity check (PC) codes. The parity-check equations of CRC and PC codes are used to detect the incorrectly decoded bits during the polar decoding. The simulation results verify that the proposed ET techniques can detect the erroneous bits in initial transmission and retransmission. The proposed technique provides the ET rate about 4-90%, and the block error rate (BLER) performance degradation is less than 2 dB.
在这项工作中,我们专注于移动通信系统中的极性码,其中执行了重传策略,即增量冗余混合自动重复请求(IR-HARQ)方案。我们提出了使用交错循环冗余校验(CRC)码和奇偶校验(PC)码的极地码的早期终止(ET)。利用CRC码和PC码的奇偶校验方程来检测极性译码过程中误码的位。仿真结果验证了该技术在初始传输和重传过程中能够检测出错误比特。该技术的ET率约为4-90%,块错误率(BLER)性能下降小于2 dB。
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引用次数: 0
Fast Multiplication in Binary Fields on ARMv8 Processors ARMv8处理器上二进制字段的快速乘法
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255466
P. V. Luc, Hoang Dang Hai, Leu Duc Tan
Efficient algorithms performing binary field operations are often required in cryptography such as for digital signatures on binary elliptic curves. The most important operation that affects the performance of such algorithms is the multiplication since most microprocessors do not support instruction sets to carry out polynomial multiplications. This paper describes a new multi-layer algorithm for the multiplication of two polynomials in binary field. This algorithm combines the Karatsuba algorithm, the 128-bit and the 192-bit multipliers on 32-bit (AArch32) and 64-bit (AArch64) ARMv8 processors. The paper illustrates the performance improvement of using multi-layer algorithm in ECDSA, ECDH, ECMQV cryptographic primitives on the curves NIST_B283, NIT_B409 and NIST_B571. Our evaluation results showed that the proposed algorithm is 4, 5 and 5 times faster than the corresponding previous techniques in GF(2283), GF(2409) and GF(2571) while being executed on the same hardware as Samsung Galaxy Tab S2 (AArch32) or IMX8M Kit (AArch64).
在密码学中,执行二进制域运算的高效算法通常是必需的,例如二进制椭圆曲线上的数字签名。影响这种算法性能的最重要的操作是乘法,因为大多数微处理器不支持指令集来执行多项式乘法。本文提出了一种新的二元域中两个多项式乘法的多层算法。该算法结合了32位(AArch32)和64位(AArch64) ARMv8处理器上的Karatsuba算法、128位和192位乘法器。本文阐述了在曲线NIST_B283、NIT_B409和NIST_B571上使用多层算法对ECDSA、ECDH、ECMQV密码原语的性能改进。我们的评估结果表明,在与三星Galaxy Tab S2 (AArch32)或IMX8M Kit (AArch64)相同的硬件上执行时,所提出的算法比GF(2283), GF(2409)和GF(2571)中的相应技术快4倍,5倍和5倍。
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引用次数: 0
Efficiency Comparison of Cooperative Inductive Power Transfer Systems 协同感应输电系统的效率比较
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255434
Quoc-Trinh Vo, Quang-Thang Duong, M. Okada
This paper presents the comparison of RF-RF efficiency and load voltage stability between cooperative inductive power transfer (IPT) system using common-coil relay and the one using separated-coil relay. Equivalent circuit technique is used to verify the load voltage stability and evaluate the RF-RF efficiency of the both systems. Electromagnetic simulation results highlighted that the cooperative IPT system using the common-coil relay outperforms the one using separated-coil relay in term of RF-RF efficiency while keeping the load voltages stable against the load variations. Furthermore, the advantage of cooperative IPT system using the common-coil relay over the one using separated-coil relay is still hold even though there is a misalignment of up to 20 percent of the half size of the coils.
本文比较了采用共圈继电器和分离圈继电器的感应功率传输系统的RF-RF效率和负载电压稳定性。利用等效电路技术验证了负载电压的稳定性,并对两种系统的RF-RF效率进行了评估。电磁仿真结果表明,采用共圈继电器的协同IPT系统在RF-RF效率方面优于采用分离圈继电器的协同IPT系统,同时在负载变化时保持负载电压稳定。此外,使用共线圈继电器的合作IPT系统优于使用分离线圈继电器的IPT系统,即使存在高达线圈一半尺寸的20%的错位,也仍然保持优势。
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引用次数: 1
Secrecy Throughput Analysis of Energy Scavenging Overlay Networks with Artificial Noise 含人工噪声的能量清除覆盖网络保密吞吐量分析
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255480
Ngoc Pham-Thi-Dan, Bao Ho-Quoc, Khuong Ho‐Van, Thiem Do-Dac, Phong Nguyen-Huu, Son Vo-Que, Son Pham-Ngoc, Lien Pham-Hong
Energy scavenging overlay networks with artificial noise (ESONwAN) integrate three emerging (energy harvesting, cognitive radio, physical layer security) technologies to boost spectrum utilization efficiency, energy efficiency, and message security, which sufficiently provide secured communication demands of an immense number of users in modern wireless systems. This paper analyzes secrecy throughput of these networks over Nakagami-m fading channels. Numerous results corroborate the theoretical analysis and demonstrate that the secrecy throughput of both secondary and primary networks increases significantly with better fading conditions and is adjusted, traded-off and maximized by various options.
具有人工噪声的能量清除覆盖网络(ESONwAN)集成了三种新兴技术(能量收集、认知无线电、物理层安全),以提高频谱利用效率、能源效率和信息安全性,充分满足现代无线系统中大量用户的安全通信需求。本文分析了这些网络在Nakagami-m衰落信道上的保密吞吐量。大量的结果证实了理论分析,并表明二级网络和主网络的保密吞吐量在较好的衰落条件下显着增加,并通过各种选项进行调整,权衡和最大化。
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引用次数: 4
Improving the Feature Set in IoT Intrusion Detection Problem Based on FP-Growth Algorithm 基于FP-Growth算法的物联网入侵检测问题特征集改进
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255431
Le Thi Hong Van, Pham Van Huong, Le Duc Thuan, Nguyen Hieu Minh
This paper proposes and develops a new method to improve the feature set in IoT intrusion detection problem based on FP-Growth algorithm. Extracting a good feature set makes an important contribution to improving the accuracy of the IoT intrusion detection problem. Current studies on the detection of new IoT attacks focus on extracting independent features without considering the relationship between specific features and groups of features. Therefore, in the paper, we analyze and evaluate the original feature set to find the relationship between feature groups and add new features generated from relationships with a certain threshold to the original feature set to create the improved feature set. The detection of relationships reaching threshold is based on combination law mining technique according to FP-Growth algorithm. The improved feature set was tested with detection method based on convolution neural network with accuracy up to 98.2% and 1.45% improvement compared to the original feature set.
本文提出并发展了一种基于FP-Growth算法改进物联网入侵检测问题特征集的新方法。提取好的特征集对提高物联网入侵检测问题的准确性有重要贡献。目前对新的物联网攻击检测的研究侧重于提取独立的特征,而没有考虑特定特征与特征组之间的关系。因此,本文通过对原始特征集进行分析和评估,找到特征组之间的关系,并将具有一定阈值的关系生成的新特征添加到原始特征集中,生成改进的特征集。基于FP-Growth算法的组合规律挖掘技术,对达到阈值的关系进行检测。采用基于卷积神经网络的检测方法对改进后的特征集进行了测试,准确率达到98.2%,比原始特征集提高了1.45%。
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引用次数: 2
Predicting heart failure using deep neural network 用深度神经网络预测心力衰竭
Pub Date : 2020-10-08 DOI: 10.1109/ATC50776.2020.9255445
M. Le, Minh Thanh Vo, Linh Mai, S. Dao
In the current health system, the diagnosis of heart failure is a difficult task and plays an important role in the early and effective treatment of patients. It is also based on the available diagnose data, from which a medical professional can make the best diagnosis for a patient. This process is very complicated, so with the development of machine learning, medical professionals will be supported to be able to make predictions of early heart failure with high accuracy. In this research, we want to predict heart failure using multilayer perceptron neural network (MLP). The prediction of heart failure dataset with the highest accuracy of 88% is better than the other research.
在当前的卫生系统中,心衰的诊断是一项艰巨的任务,对患者的早期有效治疗起着重要的作用。它还基于现有的诊断数据,医疗专业人员可以根据这些数据为患者做出最佳诊断。这个过程非常复杂,因此随着机器学习的发展,将支持医疗专业人员能够对早期心力衰竭进行高精度的预测。在本研究中,我们希望使用多层感知器神经网络(MLP)来预测心力衰竭。该心衰数据集的预测准确率最高,达到88%,优于其他研究。
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引用次数: 11
期刊
2020 International Conference on Advanced Technologies for Communications (ATC)
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