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2019 UK/ China Emerging Technologies (UCET)最新文献

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Pairwise Error Probability of Non-Orthogonal Multiple Access with I/Q Imbalance I/Q不平衡非正交多址的成对错误概率
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881873
Lina Bariah, Bassant Selim, L. Mohjazi, S. Muhaidat, P. Sofotasios, W. Hamouda
In this paper, we investigate the performance of a NOMA system under the effect of in-phase/quadrature-phase imbalance (IQI) over Rayleigh fading channels. Specifically, a closed-form pairwise error probability (PEP) expression for the underlying NOMA scenario is derived, which is subsequently utilized to analyze the achievable diversity order of NOMA users under IQI. Monte Carlo simulation results are provided to corroborate the corresponding analysis and to illustrate the detrimental effect of IQI on the performance of NOMA users.
本文研究了瑞利衰落信道中相位/正交相位不平衡(IQI)影响下的NOMA系统的性能。具体而言,推导了底层NOMA场景的封闭形式的pair - wise error probability (PEP)表达式,并利用该表达式分析了IQI下NOMA用户可实现的多样性顺序。蒙特卡罗仿真结果证实了相应的分析,并说明了IQI对NOMA用户性能的不利影响。
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引用次数: 6
A Partial Ligt-weight Image Encryption Scheme 部分轻量级图像加密方案
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881887
Jawad Ahmad, Ahsen Tahir, J. Khan, M. Khan, Fadia Ali Khan, Arshad, Zeeshan Habib
Due to greater network capacity and faster data speed, fifth generation (5G) technology is expected to provide a huge improvement in Internet of Things (IoTs) applications, Augmented & Virtual Reality (AR/VR) technologies, and Machine Type Communications (MTC). Consumer will be able to send/receive high quality multimedia data. For the protection of sensitive multimedia data, a large number of encryption algorithms are available, however, these encryption schemes does not provide light-weight encryption solution for real-time application requirements. This paper proposes a new multi-chaos computational efficient encryption for digital images. In the proposed scheme, plaintext image is transformed using Lifting Wavelet Transform (LWT) and only one-fourth part of the transformed image is encrypted using light-weight Chebyshev and Intertwining maps. Both chaotic maps were chaotically coupled for the confusion and diffusion processes which further enhances the image security. Encryption/decryption speed and other security measures such as correlation coefficient, entropy, Number of Pixels Change Rate (NPCR), contrast, energy, homogeneity confirm the superiority of the proposed light-weight encryption scheme.
由于更大的网络容量和更快的数据速度,第五代(5G)技术有望在物联网(iot)应用、增强和虚拟现实(AR/VR)技术以及机器类型通信(MTC)方面提供巨大的改进。消费者将能够发送/接收高质量的多媒体数据。为了保护敏感的多媒体数据,有大量的加密算法可供选择,但是这些加密方案并不能提供轻量级的加密解决方案来满足实时应用需求。提出了一种新的数字图像多混沌高效加密算法。在该方案中,明文图像使用提升小波变换(LWT)进行变换,只有四分之一的转换图像使用轻量级切比雪夫映射和交织映射进行加密。在混沌映射和混沌映射之间进行混沌耦合,进一步提高了图像的安全性。加密/解密速度以及相关系数、熵、像素变化率(NPCR)、对比度、能量、同质性等其他安全措施证实了所提出的轻量级加密方案的优越性。
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引用次数: 12
Wearable ECG Measurement System for Detection of Cardiac Arrhythmia 用于心律失常检测的穿戴式心电测量系统
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881894
Arish Adil, H. Abid, Nadir Najib, Usama Jillani, Wala Saadeh, Muhammad Awais Bin Altaf
Continuous tracking of heart activity from Electrocardiogram (ECG) signal to assist physicians in treating Cardio Vascular Disease (CVD) is essential for patients to avoid complications and problems associated with Cardiac arrhythmia conditions. But it necessitates a patch form factor and energy-efficient design for long-term battery operation. This paper presents a novel non-invasive single- lead wearable ECG monitoring system for acquiring the ECG signals along with the proposed simplified processor for arrhythmia detection. To ensure correct functional verification, the proposed system is implemented in hardware and tested using the MIT-BIH ECG arrhythmia database and the Creighton University Ventricular Tachyarrhythmia Database. It achieves a classification accuracy of more than 90%. The proposed processor is also synthesized using 0.18um CMOS technology.
从心电图(ECG)信号中持续跟踪心脏活动以协助医生治疗心血管疾病(CVD)对于患者避免与心律失常相关的并发症和问题至关重要。但它需要一个贴片形状的因素和节能设计的长期电池运行。本文提出了一种新的无创单导联可穿戴心电监测系统,用于心电信号的采集,并提出了一种简化的心电检测处理器。为了确保正确的功能验证,所提出的系统在硬件上实现,并使用MIT-BIH ECG心律失常数据库和Creighton University室性心动过速数据库进行测试。实现了90%以上的分类准确率。所提出的处理器也采用0.18um CMOS技术合成。
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引用次数: 2
Coded OFDM in PLC Channels with SaS distribution Impulsive Noise using MRC detector 用MRC检测器在具有SaS分布脉冲噪声的PLC信道中编码OFDM
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881882
Shirui Zhang, C. Tsimenidis, H. Cao, S. Boussakta
In this paper, we consider Power Line Communication (PLC) for Smart Grid (SG) in the presence of impulse noise modelled using the symmetric a-stable (SaS) distribution. The proposed system utilizes coded orthogonal frequency division multiplexing (OFDM) with real-valued output signal implemented using Hermitian symmetry of the modulated symbols in the frequency domain. Furthermore, the Low-density Parity Check (LDPC) and Polar codes are employed to attain frequency diversity. The paper provides a comparison of the Bit Error-Rate (BER) performance of these codes in the PLC channel. Finally, we introduce a novel Maximal Ratio Combining (MRC) technique that exploits the Hermitian symmetry inherent in the real-valued OFDM symbol and compare its performance to the Zero Forcing (ZF) equalizer that are used to remove the effect of the channel fading. The presented simulation results included in the investigation demonstrate that in the PLC channel, the performance of the proposed MRC approach using LDPC codes outperforms the Polar codes consistently for Quadrature Amplitude Modulation (M-QAM) of orders $M$ = 16.
在本文中,我们考虑了使用对称a稳定分布建模的脉冲噪声存在下的智能电网电力线通信(PLC)。该系统采用编码正交频分复用(OFDM),利用调制符号在频域的厄米对称实现实值输出信号。此外,采用低密度奇偶校验(LDPC)和Polar码实现频率分集。本文比较了这些码在PLC信道中的误码率(BER)性能。最后,我们介绍了一种新的最大比组合(MRC)技术,该技术利用了实值OFDM符号固有的厄米对称,并将其性能与用于消除信道衰落影响的零强迫(ZF)均衡器进行了比较。本研究的仿真结果表明,在PLC信道中,使用LDPC码的MRC方法的性能始终优于阶数$M$ = 16的正交调幅(M- qam)的Polar码。
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引用次数: 4
Frozen Bit Selection Scheme for Polar Coding Combined with Physical Layer Security 结合物理层安全的极性编码冻结位选择方案
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881877
H. Cao, M. Johnston, S. L. Goff
In this paper, we propose a frozen bit selection scheme for polar coding scheme combined with physical layer security that enhances the security of two legitimate users on a wiretap channel. By flipping certain frozen bits, the bit-error rate (BER) of an eavesdropper is maximized while the BER of the legitimate receiver is unaffected. An ARQ protocol is proposed that only feeds back a small proportion of the frozen bits to the transmitter, which increases the secrecy rate. The scheme is evaluated on a wiretap channel affected by impulsive noise and we consider cases where the eavesdropper's channel is actually more impulsive than the main channel. Simulation results show that the proposed scheme ensures the eavesdropper's BER is high even when only one frozen bit is flipped and this is achieved even when their channel is more impulsive than the main channel.
在本文中,我们提出了一种结合物理层安全的极性编码方案的冻结位选择方案,以提高窃听信道上两个合法用户的安全性。通过翻转某些冻结位,窃听者的误码率(BER)最大化,而合法接收方的误码率(BER)不受影响。提出了一种只向发送端反馈一小部分冻结比特的ARQ协议,提高了保密率。该方案在受脉冲噪声影响的窃听信道上进行了评估,并考虑了窃听信道实际上比主信道更具脉冲的情况。仿真结果表明,该方案在只翻转一个冻结比特的情况下,窃听者的误码率仍然很高,即使窃听者的信道比主信道脉冲更大。
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引用次数: 1
Adversarial Machine Learning Attack on Modulation Classification 调制分类的对抗性机器学习攻击
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881843
M. Usama, Muhammad Asim, Junaid Qadir, Ala Al-Fuqaha, M. Imran
Modulation classification is an important component of cognitive self-driving networks. Recently many ML-based modulation classification methods have been proposed. We have evaluated the robustness of 9 ML-based modulation classifiers against the powerful Carlini & Wagner (C-W) attack and showed that the current ML-based modulation classifiers do not provide any deterrence against adversarial ML examples. To the best of our knowledge, we are the first to report the results of the application of the C-W attack for creating adversarial examples against various ML models for modulation classification.
调制分类是认知自驾车网络的重要组成部分。近年来,人们提出了许多基于机器学习的调制分类方法。我们已经评估了9种基于ML的调制分类器对强大的Carlini & Wagner (C-W)攻击的鲁棒性,并表明当前基于ML的调制分类器对对抗性ML示例没有任何威慑作用。据我们所知,我们是第一个报告C-W攻击的应用结果,用于创建针对各种ML模型的对抗性示例以进行调制分类。
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引用次数: 11
Design and Simulation of an S Band Frequency Synthesizer for Satellite Communication Systems 卫星通信系统S波段频率合成器的设计与仿真
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881839
S. Kameche, S. M. H. Irid, Kemar Nadjet, Demim Fatima Zahra
This paper describes the design and the optimization of microwave integer-N frequency synthesizer used in transceivers for satellite application capable to process in S band [2]–[4] GHz frequencies. The optimization and the choice of the loop filter parameters are a very critical part of the frequency synthesizer. The optimized principle is based on the search for the best compromise between spectral purity and acquisition time to meet the defined applications requirements. Through different simulations and frequencies comparison, the performance and effectiveness of the proposed design are demonstrated.
本文介绍了用于卫星收发器的微波整数n频率合成器的设计与优化,该合成器能够处理S波段[2]- [4]GHz频率。环路滤波器参数的优化和选择是频率合成器中一个非常关键的环节。优化的原理是基于寻找光谱纯度和采集时间之间的最佳折衷,以满足定义的应用要求。通过不同的仿真和频率比较,验证了该设计的性能和有效性。
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引用次数: 1
A Dual Band Dual Sense Circularly Polarised Single Feed Microstrip Patch Antenna 一种双频双感圆极化单馈微带贴片天线
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881875
S. Ghosal, R. Shubair
A novel and compact dual band dual sense circularly polarized microstrip patch antenna with single coaxial feed has been reported in the present work. The key idea of generating dual band circular polarisation (CP) is the integration of a square patch with corner truncation and a smaller concentric circular patch with double slits. The first resonance is provided by the larger patch whose corner truncation generates two orthogonal modes. The inner patch controls the higher-order resonance with the CP contributed by two narrow slits. The higher order resonating frequency can be monitored by controlling the dimensions of the circle and the slits. The antenna provides the CP in two orthogonal planes with two different sense of polarisation. The lower order CP is of left-handed orientation, whereas the higher order shows right-handed polarization. The cross-polarization level is also found to be very low.
本文报道了一种新型、紧凑的单同轴馈源双频双感圆极化微带贴片天线。产生双频圆偏振(CP)的关键思想是将带角截断的方形贴片和带双狭缝的较小同心圆贴片集成在一起。第一个共振由较大的贴片提供,其角截断产生两个正交模。内贴片控制高阶共振,由两个窄缝贡献CP。通过控制圆和狭缝的尺寸,可以监测高阶谐振频率。该天线在两个正交平面上提供两种不同偏振感的CP。低阶CP为左旋取向,高阶CP为右旋极化。交叉极化水平也很低。
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引用次数: 1
Communication and Control Co-Design Using MIMO Wireless Network 基于MIMO无线网络的通信控制协同设计
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881847
Abdulrahman Al Ayidh, J. Nadas, R. Ghannam, Guodong Zhao, M. Imran
The fifth generation (5G) mobile communications technology promises to support new features and services, some of which will require Ultra-Reliable and Low Latency Communications (URLLC). To maximize the overall wireless networked control systems performance, it is necessary to have the integration of URLLC and control performance. Multiple-input-multiple-output (MIMO) wireless communication systems provide diversity technique which is used to transmit the same information through different paths to guarantee the reliability of the wireless network. Additionally, another method is used to increase the channel capacity by offering additional spatial dimensions, and a degree of freedom (DoF) gains in the high SNR regime. These techniques cannot be done together, but there exists a trade-off between them to achieve URLLC. In this work, we study the impact of using (MIMO) systems concerning obtaining URLLC using this trade-off. Then, we study the control performance of the wireless networked control systems (WNCSs) and the average energy consumption of producing URLLC using MIMO systems from the perspective of communication and control co-design. As a result, the proposed method can significantly minimize the average energy consumption compared with single-input-single-output (SISO) system. Additionally, the control cost performance versus SNR of our proposed method is illustrated in the simulation results section.
第五代(5G)移动通信技术有望支持新功能和服务,其中一些将需要超可靠和低延迟通信(URLLC)。为了最大限度地提高无线网络控制系统的整体性能,有必要将URLLC与控制性能相结合。多输入多输出(MIMO)无线通信系统提供了分集技术,通过不同的路径传输相同的信息,保证了无线网络的可靠性。此外,另一种方法是通过提供额外的空间维度来增加信道容量,并在高信噪比条件下增加自由度(DoF)增益。这些技术不能一起完成,但是为了实现URLLC,它们之间存在权衡。在这项工作中,我们研究了使用(MIMO)系统对使用这种权衡获得URLLC的影响。然后,从通信和控制协同设计的角度研究了无线网络控制系统(wncs)的控制性能和使用MIMO系统生产URLLC的平均能耗。结果表明,与单输入-单输出(SISO)系统相比,该方法可以显著降低平均能耗。此外,我们提出的方法的控制成本性能与信噪比在仿真结果部分中进行了说明。
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引用次数: 4
The need for real time and robust sensing of infrastructure risk due to extreme hydrologic events 由于极端水文事件,需要对基础设施风险进行实时和强大的感知
Pub Date : 2019-08-01 DOI: 10.1109/UCET.2019.8881865
Eftychia Koursari, Stuart Wallace, M. Valyrakis, P. Michalis
Scour and other hydraulic processes can be responsible for compromising the stability of linear assets and critical infrastructure (such as Highway Structures and in some cases the embankments supporting the road pavement). In extreme cases, this can even cause failure, if scour is not identified and addressed at early stages. A range of sensors can be used to detect changes in the water and river bed surface elevation, with application in flood and infrastructure scour monitoring, respectively. Here, the range of needs of the infrastructure sector are explored, with an outlook to offer suggestions for the potential application of these new sensors.
冲刷和其他水力过程可能会损害线性资产和关键基础设施的稳定性(如公路结构,在某些情况下支撑道路路面的堤防)。在极端情况下,如果在早期阶段没有识别和处理冲刷,这甚至可能导致失败。一系列传感器可用于检测水和河床表面高程的变化,分别应用于洪水和基础设施冲刷监测。本文探讨了基础设施部门的需求范围,并展望了这些新型传感器的潜在应用。
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引用次数: 2
期刊
2019 UK/ China Emerging Technologies (UCET)
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