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2022 International Conference on Advanced Technologies for Communications (ATC)最新文献

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A 1.9 µW 127 n V/ √Hz Bio Chopper Amplifier Using a Noise-Efficient Common Mode Cancelation Loop 一种1.9µW 127 n V/√Hz生物斩波放大器,采用低噪声共模抵消环路
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9942987
Xuan Thanh Pham, X. P. Tran, Khac Vu Nguyen, Van Thai Le, D. Pham, Manh Kha Hoang
Electrical neural stimulation (ENS) is widely used for implantable applications to convey information to nervous tissue. However, ENS will generate large common (CM) artifacts at the electrode tissue, leading to saturate the traditional biopotential amplifier. This paper presents a low power low noise bio chopper amplifier (BiCA) for the recording of biopotential signals. The proposed noise-efficient common mode cancelation (N-CMC) loop helps BiCA handle 650 mVpp CM artifact and avoid its noise contribution. Moreover, N-CMC helps BiCA improving the signal-noise-ratio from 12.8 to 49 dB. Beside, the proposed BiCA also uses a DC servo loop (DSL) and a ripple suppression loop (RSL) to address the electrode offset (EOS) and intenal offset (VOS), respectively. The proposed BiCA implemented in a 180 nm CMOS technology occupies only 0.11 mm2, The simulation results of the BiCA show an input referred noise of 2.73 µVrms. A common-mode rejection ratio (CMRR) and a power rejection ratio (PSRR) are 133 and 129 dB, respectively, at 50 Hz. The total current consumption of BiCA is 1.9 µA from a 1 V supply.
神经电刺激(ENS)被广泛应用于植入式应用,以向神经组织传递信息。然而,ENS会在电极组织处产生较大的共(CM)伪影,导致传统的生物电位放大器饱和。提出了一种用于记录生物电位信号的低功率低噪声生物斩波放大器。所提出的噪声高效共模抵消(N-CMC)环路有助于BiCA处理650 mVpp的CM伪影,并避免其噪声贡献。此外,N-CMC有助于BiCA将信噪比从12.8提高到49 dB。此外,所提出的BiCA还使用直流伺服回路(DSL)和纹波抑制回路(RSL)分别解决电极偏移(EOS)和内部偏移(VOS)。在180 nm CMOS技术上实现的BiCA占地面积仅为0.11 mm2,仿真结果表明,BiCA的输入参考噪声为2.73µVrms。在50 Hz时,共模抑制比(CMRR)和功率抑制比(PSRR)分别为133和129 dB。在1v电源下,BiCA的总电流消耗为1.9µA。
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引用次数: 0
Combining U-Net Auto-encoder and MUSIC Algorithm for Improving DOA Estimation Accuracy under Defects of Antenna Array 结合U-Net自编码器和MUSIC算法提高天线阵缺陷下的DOA估计精度
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9943003
Duy T. Nguyen, Thanh-Hai Le, Van‐Phuc Hoang, Van-Sang Doan, Duy-Thang Thai
Direction of arrival (DOA) estimation plays a crucial role in radio signal surveillance and reconnaissance systems because it provides spatial information to localize radiated signal sources. Conventional DOA estimation algorithms, such as multiple signal classification (MUSIC) and estimation of signal parameters via rotational invariant technique (ESPRIT), are very sensitive to defects of antenna arrays that reduce the accuracy of estimated DOA in real applications. To mitigate this issue, an auto-encoder based on U-Net is proposed to transfer the imperfect covariance matrix to a new one; then, the MUSIC algorithm is applied to the new covariance matrix to estimate the DOAs of incoming signals. The proposed approach is investigated through simulation for a uniform linear array of eight elements with an inter-element space of half-wavelength. The simulation results indicate that our proposed method achieves a good performance in terms of DOA estimation accuracy. In comparison, the proposed model has outperformed the other models, such as conventional MUSIC, ESPRIT, and two other deep neural networks.
到达方向(DOA)估计在无线电信号监视和侦察系统中起着至关重要的作用,因为它提供了定位辐射信号源的空间信息。传统的DOA估计算法,如多信号分类(MUSIC)和旋转不变量技术(ESPRIT)估计信号参数,在实际应用中对天线阵列的缺陷非常敏感,从而降低了估计DOA的精度。为了解决这一问题,提出了一种基于U-Net的自编码器,将不完全协方差矩阵转化为新的协方差矩阵;然后,对新的协方差矩阵应用MUSIC算法估计输入信号的doa。以半波长空间的八元均匀线性阵列为例,对该方法进行了仿真研究。仿真结果表明,该方法在DOA估计精度方面取得了较好的效果。相比之下,该模型的性能优于其他模型,如传统的MUSIC、ESPRIT和另外两种深度神经网络。
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引用次数: 1
Applying Dynamic Threshold in SDN to Detect DDoS Attacks SDN动态阈值检测DDoS攻击
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9943031
Nhat Do Van, Luong Duc Huy, Can Quang Truong, Bùi Trung Ninh, Dinh Thi Thai Mai
In this research, we will provide a brief overview of the SDN architecture and how DDoS can drain a controller's resources. We will then introduce a method to detect the attack based on using statistical analysis with a dynamic threshold value that changes over time, depending on the traffic over a network. Survey and simulation results show that our solution is completely feasible to quickly detect DDoS attacks as well as help improve reliability when compared to other methods using static threshold values.
在本研究中,我们将简要概述SDN架构以及DDoS如何耗尽控制器的资源。然后,我们将介绍一种检测攻击的方法,该方法基于使用随时间变化的动态阈值的统计分析,这取决于网络上的流量。调查和仿真结果表明,与使用静态阈值的其他方法相比,我们的解决方案在快速检测DDoS攻击方面是完全可行的,并且有助于提高可靠性。
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引用次数: 0
Micro-Doppler signatures based human activity classification using Dense-Inception Neural Network 利用密集感知神经网络进行基于微多普勒特征的人类活动分类
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9943046
N. Nguyen, MinhNghia Pham, Vannhu Le, Dung DuongQuoc, Van-Sang Doan
Falls are the leading cause of injury and death in people over 65. Timely detection and warning of the fall risks of humans, especially the elderly, while performing daily living activities are vitally necessary. Therefore, this paper proposes a Dense-Inception Neural Network (DINN) to classify falls among 11 human activities based on micro-Doppler signatures. The network's hyper-parameters are analyzed and fine-tuned through experiments with the simulated dataset from Simhumalator software to choose the most optimal network model. As a result, the proposed model with 24 filters achieves a good balance between prediction time and classification accuracy performance. Moreover, the proposed model's results remarkably outperform when compared with four other networks with the same input dataset due to the dense-inception structure.
跌倒是65岁以上人群受伤和死亡的主要原因。在进行日常生活活动时及时发现和预警人类,特别是老年人的跌倒风险至关重要。因此,本文提出了一种基于微多普勒特征的密集初始神经网络(DINN)对11种人类活动中的跌倒进行分类。利用simulalator软件的模拟数据集对网络的超参数进行分析和微调,选择最优的网络模型。结果表明,采用24个滤波器的模型在预测时间和分类精度性能之间取得了很好的平衡。此外,由于密集初始结构,与具有相同输入数据集的其他四种网络相比,所提出模型的结果显着优于其他网络。
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引用次数: 0
MO-DLSCA: Deep Learning Based Non-profiled Side Channel Analysis Using Multi-output Neural Networks MO-DLSCA:基于深度学习的非剖面侧信道分析,使用多输出神经网络
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9943024
Ngoc-Tuan Dol, Phu-Cuong Le, Van‐Phuc Hoang, Van-Sang Doan, Hoai Giang Nguyen, C. Pham
Differential Deep Learning Analysis (DDLA) is the first side-channel analysis (SCA) attack using deep learning (DL) in non-profiled scenarios. However, DDLA requires many training processes to distinguish the correct key. In this paper, we propose a novel SCA technique using multi-output multi-loss neural networks, which can predict all possible hypothesis keys simultaneously in a short time of the training process. Specifically, a multi-output classification (MOC) model and a multi-output regression (MOR) model are introduced. Especially, we first suggest using identity labeling for MOR model to determine the trend of the training metric for each hypothesis key in the non-profiled SCA scenario. As a result, the correct key can be distinguished easily. The efficiency of proposed model is clarified on different SCA-protected schemes, such as masking and combined hiding-masking countermeasure methods. Significantly, our approach remarkably outperforms the DDLA model and parallel network in terms of the execution time and the success rate. In addition, by using shared layers, the proposed model achieves a higher success rate of at least 25 % in the case of combined hiding-masking countermeasure.
差分深度学习分析(DDLA)是第一个在非轮廓场景中使用深度学习(DL)的侧信道分析(SCA)攻击。然而,DDLA需要许多训练过程来区分正确的关键。在本文中,我们提出了一种新的基于多输出多损失神经网络的SCA技术,该技术可以在短时间内同时预测所有可能的假设键。具体来说,介绍了多输出分类(MOC)模型和多输出回归(MOR)模型。特别是,我们首先建议对MOR模型使用身份标记,以确定非概要SCA场景中每个假设键的训练度量的趋势。因此,正确的键可以很容易地区分。在不同的sca保护方案(如掩蔽和组合掩蔽对抗方法)上验证了该模型的有效性。值得注意的是,我们的方法在执行时间和成功率方面明显优于DDLA模型和并行网络。此外,通过使用共享层,该模型在联合掩蔽对抗的情况下获得了至少25%的成功率。
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引用次数: 6
Achievable Zero-Outage Secrecy Capacity Against Eavesdroppers with Unlimited Antennas and Arbitrary Location 具有无限天线和任意位置的窃听者可实现的零中断保密能力
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9943018
H. Ta, Thanh Lam Cao, Khuong Ho‐Van
We propose a new artificial noise (AN)-aided secure communication scheme that is robust to the eavesdropper's location and number of antennas to achieve a high zero-outage secrecy capacity. Unlike the traditional AN-aided secure communication schemes, the signal-to-interference-plus-noise ratio at the eavesdropper does not grow with the number of antennas in the proposed scheme. Hence, the eavesdropper cannot remove the AN no matter how many antennas it may have. We derive the secrecy outage probability and the zero-outage secrecy capacity of the proposed scheme in the slow Rayleigh fading channel and investigate the effect of the location and the number of antennas at the eavesdroppers.
我们提出了一种新的人工噪声辅助保密通信方案,该方案对窃听者的位置和天线数量具有鲁棒性,以实现高的零中断保密能力。与传统的an辅助保密通信方案不同,该方案中窃听器处的信噪比不随天线数量的增加而增加。因此,窃听者无论有多少天线都无法移除AN。推导了该方案在慢瑞利衰落信道下的保密中断概率和零中断保密能力,并研究了窃听器位置和天线数量的影响。
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引用次数: 0
Three-Dimensional Direction Finding of Radio Sources in Low SNR Environments 低信噪比环境下射电源三维测向
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9942977
Manh Linh Nguyen, T. B. Nguyen, Duc Phu Phung, Van Long Do
This paper deals with the direction-of-arrival (DOA) estimation problem in three-dimensional (3D) space in low signal-to-noise ratio (SNR) environments. The proposed solution utilizes an Isolog-3D antenna with advanced signal processing techniques for solving direction finding in 3D space (DF-3D) problem. Standard DF-3D solutions have been shown to work ineffectively in low SNR scenarios due to large power estimation errors. For solving this problem, we propose in this paper a simple but effective method for reducing DOA estimation errors. The reduction of DOA estimation errors is obtained by combining an amplitude calibration algorithm with the standard Kalman filter. The amplitude calibration helps in removing bias errors in power estimation while the Kalman filter alleviates random noises in DOA estimation. Theoretical and simulation results have been shown for demonstrating the effectiveness of the proposed solution.
本文研究了低信噪比环境下三维(3D)空间的到达方向(DOA)估计问题。该方案利用isologi -3D天线和先进的信号处理技术来解决三维空间测向(DF-3D)问题。由于功率估计误差大,标准DF-3D解决方案在低信噪比情况下工作效率低下。为了解决这一问题,本文提出了一种简单而有效的减小DOA估计误差的方法。通过将幅度校正算法与标准卡尔曼滤波相结合来减小DOA估计误差。振幅校正有助于消除功率估计中的偏置误差,卡尔曼滤波有助于减轻DOA估计中的随机噪声。理论和仿真结果证明了该方法的有效性。
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引用次数: 2
Optimizing Power for Data Transmissions in Uplink Cell-Free Multi-ABSs Communication Systems 上行无小区多基站通信系统数据传输功率优化
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9943027
Bui Anh Duc, T. Hoang, Nguyen Thu Phuong, X. Tran, Pham Thanh Hiep
A cell-free (CF) technology is gradually asserting its outstanding advantages by many researches, and it is viewed as a viable technology for use in 6G wireless networks. In this correspondence paper, we examine the performance of uplink CF multiple aerial base stations (ABSs) communication systems where ABSs are described as unmanned aerial vehicles (DAVs) mounted base stations. ABSs are configured with multiple antennas and stochastic distribution in a specific area to serve multiple ground users simultaneously. ABSs estimate the channels during the uplink training stage and then detect data symbols based on the estimated channels. To improve the overall performance of the uplink CF multi-ABS system, the optimization method for data transmission power is proposed. Furthermore, the closed-form of uplink achievable rate is derived based on the matched filtering technique and sequence of linear programs for numerical evaluation. The proposed optimization data transmission power is evaluated while changing several system parameters, such as the number of users, the number of ABSs and pilot sequence length. Our simulation findings demonstrate that the performance of the optimized system is superior to that of the non-optimized system.
无蜂窝(CF)技术在众多研究中逐渐显示出其突出的优势,被认为是在6G无线网络中使用的可行技术。在这篇通信论文中,我们研究了上行CF多空中基站(abs)通信系统的性能,其中abs被描述为无人驾驶飞行器(DAVs)安装的基站。abs配置多天线,在特定区域随机分布,同时为多个地面用户服务。ABSs在上行链路训练阶段估计信道,然后根据估计的信道检测数据符号。为了提高上行链路CF多abs系统的整体性能,提出了数据传输功率的优化方法。在此基础上,基于匹配滤波技术和线性规划序列,推导了上行可达速率的封闭形式。在改变用户数量、基站数量和导频序列长度等系统参数的情况下,对优化后的数据传输功率进行了评估。仿真结果表明,优化后的系统性能优于未优化的系统。
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引用次数: 0
Data Fusion Using Independent Vector Analysis: Solutions, Challenges, and Opportunities 使用独立矢量分析的数据融合:解决方案、挑战和机遇
Pub Date : 2022-10-20 DOI: 10.1109/ATC55345.2022.9942997
T. Adalı
In many fields today, such as neuroscience, remote sensing, computational social science, and physical sciences, multiple sets of data are readily available. Matrix and tensor factorizations enable joint analysis, i.e., fusion, of these multiple datasets such that they can fully interact and inform each other while also minimizing the assumptions placed on their inherent relationships. A key advantage of these methods is the direct interpretability of their results. This talk presents an overview of models based on independent component analysis (ICA), and its generalization to multiple datasets, independent vector analysis (IVA) with examples using neuroimaging data. A number of important challenges and future directions of research are addressed for solutions using not only ICA and IVA but also tensors and other matrix factorizations.
在今天的许多领域,如神经科学、遥感、计算社会科学和物理科学,多组数据随时可用。矩阵和张量分解使这些多个数据集能够进行联合分析,即融合,这样它们就可以充分交互并相互通知,同时也最小化了对其固有关系的假设。这些方法的一个主要优点是其结果的直接可解释性。本演讲概述了基于独立成分分析(ICA)的模型,以及它在多个数据集上的推广,独立向量分析(IVA)与使用神经成像数据的例子。一些重要的挑战和未来的研究方向,解决方案不仅使用ICA和IVA,而且使用张量和其他矩阵分解。
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引用次数: 0
Leading 5G evolution towards 6G 引领5G向6G演进
Pub Date : 2022-10-20 DOI: 10.1109/atc55345.2022.9943009
Patrick Tsie
The presentation will share the latest update for 3GPP on 5G standardization status. It also provides the new 5G-Advanced features, that expands the 5G technology foundations for coverage, mobility, power, reliability, etc. in order to broaden 5G's reach to new use cases, deployments, and network topologies. Those features will fuel the 5G Advanced evolution towards 6G in the future.
该演讲将分享3GPP关于5G标准化状态的最新进展。它还提供了新的5G- advanced功能,扩展了5G技术基础,包括覆盖范围、移动性、功率、可靠性等,以便将5G的覆盖范围扩大到新的用例、部署和网络拓扑。这些功能将推动未来5G向6G演进。
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引用次数: 0
期刊
2022 International Conference on Advanced Technologies for Communications (ATC)
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