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2020 International Conference Engineering and Telecommunication (En&T)最新文献

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Research of Performance Parameters of Virtual Switches with OpenFlow Support 基于OpenFlow的虚拟交换机性能参数研究
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431289
M. Ushakova, Y. Ushakov, Jie Cui, L. Legashev, A. Shukhman, Aleksandr V. Bolodurin
This paper discusses the problems that arise with different ways of connecting virtual network switches with the OpenFlow mode. A technique for automated research of performance parameters of virtual switches with OpenFlow support is proposed. The study revealed modes in which significant packet loss and delays of more than 100 ms occur. It was found that on different parts of the packet's route, using Open vSwitch in OpenFlow mode inside virtual machines is not optimal. Also, the connection for virtualization systems via Open vSwitch is preferable to Linux Bridge. Exceeding the load beyond the identified limits entails the need to optimize the Open vSwitch and install the DPDK module for low-latency switching or change the load balancing on such nodes.
本文讨论了OpenFlow模式下虚拟网络交换机的不同连接方式所产生的问题。提出了一种基于OpenFlow的虚拟交换机性能参数自动研究技术。该研究揭示了显著的数据包丢失和超过100毫秒的延迟发生的模式。结果发现,在数据包路由的不同部分,在虚拟机内部以OpenFlow模式使用Open vSwitch并不是最优的。此外,通过Open vSwitch连接虚拟化系统比Linux Bridge更可取。如果负载超出了确定的限制,则需要优化Open vSwitch并安装DPDK模块以实现低延迟交换,或者更改这些节点上的负载均衡。
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引用次数: 2
The Influence of the Material and Geometrical Shape of a Semiconductor Nanoparticle on the Sensitivity of an Optical Plasmon Sensor 半导体纳米粒子的材料和几何形状对光学等离子体传感器灵敏度的影响
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431288
V. Astapenko, S. Sakhno, A. Yakovets, E. Khramov, E. V. Sakhno
In the work, the comparison of sensitivities of optical plasmon sensors constructed on the basis of semiconductor nanoparticles of various shapes is presented. The calculation was made within the framework of the dipole approximation. A characteristic of sensitivity is the value of the shift of the plasmon resonance maximum per unit change in the refractive index of a medium. The influence of the material of a nanoparticle and its shape on the sensitivity of an optical plasmon sensor is shown.
本文对不同形状的半导体纳米粒子构成的光学等离子体传感器的灵敏度进行了比较。计算是在偶极子近似的框架内进行的。灵敏度的一个特征是介质折射率每单位变化时等离子体共振的最大位移值。给出了纳米粒子的材料及其形状对光学等离子体传感器灵敏度的影响。
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引用次数: 1
Miniaturization of the Volumetric Strip-Slot Transition and Investigation of its Matrix of S-parameters 体积带槽过渡的小型化及其s -参数矩阵的研究
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431316
N. Dudarev, D. Fomin, S. Darovskikh
The application of the volumetric strip-slot transition is relevant for the implementation of contactless microwave power transmission device or microwave filtering device. This statement can be confirmed by several arguments. Firstly, it is due to compactness of the volumetric strip-slot transition that achieved by the multilayer arrangement of its functional parts. Secondly, it is due to the frequency-selective properties of the volumetric strip-slot transition which can be classified as band-pass. And thirdly, the volume-modular principle of its design makes it possible to ensure the replacement of individual components of the volumetric strip-slot transition. It allows to ensure high functional flexibility of the volumetric strip-slot transition. At the same time an important line in the development of wireless electronics is miniaturization of devices that operates in the microwave frequency range. In this case the issue of miniaturization of the volumetric strip-slot transition can be solved with the use of a U-shaped slot resonator. The purpose of this article is to present the results of theoretical and experimental researches of the matrix of S-parameters for the miniaturized volumetric strip-slot transition. The matrix of S-parameters of the volumetric strip-slot transition is found by the numerical simulation with a rigorous electrodynamics formulation. Experimental results obtained on the volumetric strip-slot transition sample are in the good numerical agreement with the simulated results.
体积带槽转换的应用关系到非接触式微波功率传输装置或微波滤波装置的实现。这种说法可以通过几个论点来证实。首先,这是由于其功能部件的多层排列实现了体积带-槽过渡的紧凑性。其次,由于体积带隙跃迁的频率选择性,它可以归类为带通。其三,其体积模块化的设计原则,使其能够确保更换单个部件的体积条形-槽形过渡。它可以确保体积条形-槽形过渡的高功能灵活性。与此同时,无线电子学发展的一个重要方向是微波频率范围内工作设备的小型化。在这种情况下,使用u形槽谐振器可以解决体积带-槽过渡的小型化问题。本文的目的是介绍小型化体积条形槽过渡的s参数矩阵的理论和实验研究结果。采用严格的电动力学公式进行数值模拟,得到了体积条形-槽形过渡的s参数矩阵。实验结果与模拟结果吻合较好。
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引用次数: 0
Application of the Bluetooth Protocol for Data Transfer from Computer to the Brain in Active BCI-Interfaces and Development of the Small Bluetooth Neural Stimulation Device 蓝牙协议在脑电主动接口中的应用及小型蓝牙神经刺激装置的研制
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431244
Daniil Berezhnoy, Timur Bergaliyev, S. Sakhno
The technology of active-BCI and computer-controlled neural stimulation is rapidly developing, mostly in animal experiments and preclinical research. However, there are no commercially available portable devices for neural stimulation and no universal protocol for wireless data transfer, that could be used in such experiments. We propose the device, based on the commercially available Bluetooth-modules, that could be adapted for this task. Main component of the proposed small neural stimulator, which can be fixed on laboratory animals' back, is a current source, controlled by the output of Bluetooth-module (Slave). Another module (Master) is connected to the computer and sends commands thru RFCOMM protocol. Experiments with the device prototype show that simple byte-codes sent to the virtual COM-port can directly transmit the waveforms of the trains of impulses, used in experiments with deep brain stimulation. This work shows the potential of using Bluetooth-protocol and widely available Bluetooth-modules for the development of neural stimulation devices.
主动脑机接口和计算机控制的神经刺激技术正在迅速发展,主要是在动物实验和临床前研究中。然而,目前还没有商用的可用于神经刺激的便携式设备,也没有用于无线数据传输的通用协议,可用于此类实验。我们提出的设备,基于商业上可用的蓝牙模块,可以适应这项任务。这种小型神经刺激器可以固定在实验动物的背部,其主要组成部分是一个电流源,由蓝牙模块(Slave)的输出控制。另一个模块(Master)与计算机相连,通过RFCOMM协议发送命令。样机实验表明,发送到虚拟com端口的简单字节码可以直接传输脉冲序列的波形,用于深部脑刺激实验。这项工作显示了使用蓝牙协议和广泛可用的蓝牙模块开发神经刺激设备的潜力。
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引用次数: 0
Dish-ID: A neural-based method for ingredient extraction and further recipe suggestion Dish-ID:一种基于神经的成分提取和进一步配方建议方法
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431242
Ilya Shchuka, Saydash Miftakhov, Vladislav Patrushev, M. Tikhonova, Alena Fenogenova
The paper presents a method for meal recognition, ingredient extraction and recipe suggestion in the Russian language. The proposed algorithm consists of several consecutive stages. On the first stage the model extracts a list of ingredients from a photo of the dish, based on which recipes on the second stage are selected. Two ingredient extraction architectures were tested for the first stage and three recipe matching methods for recipe suggestion are proposed. In addition, the algorithm was incorporated into the telegram-bot which provides friendly user experience. Source code is at https://github.com/Alenushldish_id_sirius.
本文提出了一种俄文餐食识别、配料提取和配方建议的方法。该算法由几个连续的阶段组成。在第一阶段,模型从菜肴的照片中提取配料列表,并以此为基础选择第二阶段的食谱。第一阶段测试了两种成分提取体系,提出了三种配方建议的配方匹配方法。此外,该算法还被应用到电报机器人中,提供了友好的用户体验。源代码在https://github.com/Alenushldish_id_sirius。
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引用次数: 2
Comparative Analysis of Indoor Positioning Methods Based on the Wireless Sensor Network of Bluetooth Low Energy Beacons 基于蓝牙低能信标无线传感器网络的室内定位方法比较分析
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431286
Astafiev Alexandr, Demidov Anton, Makarov Mikhail, Kondrushin Ilya
The article provides a comparative analysis of the trilateration and min-max methods. In a indoor area, experiments were carried out to determine the exact location of the reader. The experiment used the following equipment: Bluetooth 5.0 BLE beacons for positioning a mobile device, a mobile device with a Bluetooth 5.0 sensor for reading BLE beacons, a laptop for receiving and processing data from a mobile device. In the course of the experiment, the minuses and pluses were identified, as well as the result was presented in the form of a table and a figure at the end of the article.
本文对三边法和最小最大值法进行了比较分析。在室内进行实验,以确定阅读器的确切位置。本实验使用的设备有:定位移动设备的蓝牙5.0 BLE信标,读取BLE信标的带有蓝牙5.0传感器的移动设备,接收和处理移动设备数据的笔记本电脑。在实验的过程中,我们对实验结果的利弊进行了识别,并在文章的最后以表格和图表的形式给出了实验结果。
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引用次数: 0
Adaptive Digital Predistortion of RF Power Amplifiers Based on Memory Polynomial Model and Indirect Learning Architecture 基于记忆多项式模型和间接学习结构的射频功率放大器自适应数字预失真
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431300
Van-Kien Vu, V. Tran
This paper presents approaches for modeling and simulating RF power amplifiers and increasing transmitter linearity using adaptive digital predistortion technique. The memory polynomial models, indirect learning architecture and coefficients update algorithms such as recursive prediction error method, Kalman filter and recursive least squares are considered. The simulation results in the DVB-T2 standard indicate that an adjacent channel leakage ratio correction of over 25 dB is obtained due to linearization.
本文介绍了射频功率放大器的建模和仿真方法,以及利用自适应数字预失真技术提高发射机线性度的方法。考虑了记忆多项式模型、间接学习结构和系数更新算法,如递归预测误差法、卡尔曼滤波和递归最小二乘。在DVB-T2标准中的仿真结果表明,由于线性化,相邻信道的漏率校正超过25 dB。
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引用次数: 0
Multicarrier modulation schemes efficiency investigation in shallow water hydroacoustic communication application 多载波调制方案在浅水水声通信中的效率研究
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431262
S. Dushin, Igor Y. Kurov, S. Shavrin, V. S. Aleshin, M. Farkhadov
High data rate data transmission in hydroacoustic communication in shallow water faces a lot of problems due to the doubly selective nature of the channel, which is characterized by long delay time-varying impulse response and significant Doppler shifting. Multicarrier modulation is a powerful method of inter symbol interference mitigating in these conditions, but significant time-selectivity leads to the inter carrier interference. In this paper the efficiency of different multicarrier schemes is being investigated in the application specified, targeting to choose the viable parameters for each considered scheme, using simulation and analysis of their property. In particular, we consider conventional OFDM, filtered OFDM, windowed OFDM, QAM-FBMC and UFMC, which are combined with fast convergence RLS based equalizer. The simulation is being performed using open source software Filter Bank Multicarrier Modulation. The channel is being simulated using Brest Commercial Harbor experiment from Watermark benchmark, which provides measured characteristics of real impulse responses of the channels in shallow water within band 32.5-37.5 kHz. The theoretical analysis and simulation results show that FBMC approach provides significantly better performance compare to its OFDM counterparts for large number of subcarriers (2500 subcarriers). On the other hand, the realization of FBMC-QAM system in such case is computationally more complex. It is also important that for all considered schemes the performance is highly depend on equalizer characteristics.
浅水水声通信的高数据速率数据传输由于信道的双选择性,具有长时延时变脉冲响应和显著的多普勒频移等特点,面临着很多问题。在这种情况下,多载波调制是一种有效的减轻码间干扰的方法,但显著的时间选择性会导致载波间干扰。本文研究了不同的多载波方案在特定应用下的效率,目的是为每种考虑的方案选择可行的参数,并对其特性进行仿真和分析。我们特别考虑了传统OFDM、滤波OFDM、加窗OFDM、QAM-FBMC和UFMC,它们与基于快速收敛RLS的均衡器相结合。仿真使用开源软件滤波器组多载波调制进行。利用水印基准中的布雷斯特商港实验对该信道进行了仿真,得到了在32.5-37.5 kHz范围内浅水信道的真实脉冲响应特性。理论分析和仿真结果表明,对于大量子载波(2500子载波),FBMC方法的性能明显优于OFDM方法。另一方面,在这种情况下,FBMC-QAM系统的实现在计算上更加复杂。同样重要的是,对于所有考虑的方案,性能高度依赖于均衡器特性。
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引用次数: 1
An Optimized Deep Learning Framework for Network Intrusion Detection System (NIDS) 一种优化的网络入侵检测系统深度学习框架
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431266
Ayonya Prabhakaran, Vijay Kumar Chaurasiya, Sunakshi Singh, S. Yadav
Securing the network and associated infrastructure is a never-ending process. Researchers and network administrators are continuously developing new tools and technologies to protect the network and related infrastructure. Intrusion Detection System (IDS) is one of them. Artificial neural networks can learn and improve its performance if appropriately trained with the optimal feature vectors. In this paper, a Recurrent Neural Networks (RNN) and LSTM based machine learning model is proposed to detect and classify the type of intrusion depending upon the input data. Once trained, the proposed method will remember the classification task and subsequently become able to classify the attack whenever a new set of inputs are provided to the pre-trained model. The proposed RNN and LSTM model has been tested over the NSL-KDD data-set and evaluated for varying different parameters (i.e., layers with a fixed number of neurons) and the width of the proposed models (i.e., number of neurons on a single hidden layer). The results proved that the proposed model performs better than the existing models in terms of accuracy.
保护网络和相关基础设施是一个永无止境的过程。研究人员和网络管理员不断开发新的工具和技术来保护网络和相关基础设施。入侵检测系统(IDS)就是其中之一。人工神经网络可以通过适当的最优特征向量训练来学习和提高其性能。本文提出了一种基于递归神经网络(RNN)和LSTM的机器学习模型,根据输入数据对入侵类型进行检测和分类。一旦经过训练,所提出的方法将记住分类任务,并随后能够在向预训练的模型提供一组新的输入时对攻击进行分类。所提出的RNN和LSTM模型已经在NSL-KDD数据集上进行了测试,并对不同的参数(即具有固定数量神经元的层)和所提出模型的宽度(即单个隐藏层上的神经元数量)进行了评估。结果表明,该模型在精度上优于现有模型。
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引用次数: 3
Adaptive Calibration Method for Time-Interleaved ADCs 时间交错adc的自适应校准方法
Pub Date : 2020-11-25 DOI: 10.1109/EnT50437.2020.9431271
A. Fateeva, I. Kashchenko
This article presents an adaptive calibration method for time interleaved ADCs. This method is based on the use of the LMS algorithm to calibrate the channel gain and the Euler numerical integration method to compensate the offset voltage of the ADC channels and “data averaging”. The use of the Farrow filter for the time synchronization of ADC channels is corroborated. The degree of the Lagrange polynomial of the allpass Farrow filter is determined, which corresponds to the cubic interpolation. The results of simulation of the proposed method are presented, including spectral analysis of the output signal before and after calibration.
提出了一种时间交错adc的自适应校准方法。该方法基于使用LMS算法校准通道增益和欧拉数值积分法补偿ADC通道的偏置电压和“数据平均”。法罗滤波器用于ADC通道的时间同步得到证实。确定了全通法罗滤波器的拉格朗日多项式阶数,该阶数对应于三次插值。给出了该方法的仿真结果,包括标定前后输出信号的频谱分析。
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引用次数: 0
期刊
2020 International Conference Engineering and Telecommunication (En&T)
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