Aeu-International Journal of Electronics and Communications最新文献_第3页

An ultra-wideband triple-polarization reconfigurable Vivaldi array antenna 超宽带三极化可重构维瓦尔第阵列天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-11-05 DOI: 10.1016/j.aeue.2024.155575

Yajin Wang, Minjian Ao, Jianxun Su, Qingxin Guo, Zengrui Li

引用次数: 0

Energy saving optimization for relay-assistance SWIPT network with nonlinear energy harvesting 具有非线性能量收集功能的中继辅助 SWIPT 网络的节能优化

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-11-01 DOI: 10.1016/j.aeue.2024.155569

Liwen Yue , Zhixin Liu , Xiaoyang Zheng , Na Liu , Yazhou Yuan , Kit Yan Chan

{"title":"Energy saving optimization for relay-assistance SWIPT network with nonlinear energy harvesting","authors":"Liwen Yue , Zhixin Liu , Xiaoyang Zheng , Na Liu , Yazhou Yuan , Kit Yan Chan","doi":"10.1016/j.aeue.2024.155569","DOIUrl":"10.1016/j.aeue.2024.155569","url":null,"abstract":"<div><div>Simultaneous Wireless Information and Power Transfer (SWIPT) network is a promoting mode which provides continuous energy for the energy limited scenarios. Combining the relay transmitting mode and power–time-splitting mode, the optimization problem of minimizing the energy consumption is formulated. Different from the common consumption that the energy receiver can harvest energy in linear way, the nonlinear SWIPT model is taken into consideration, which is more realistic, and the causality of energy consumption and requirements of transmission rate are included as the constraints. To solve the nonlinear and coupled optimization problem, a decomposed mode in two layers is proposed. In the outer layer, the optimization of EH architecture is performed, in the inner layer, the joint optimization of beamforming vector, time division factor and power division factor are performed. Due to the coupled variables and the existence of nonlinear constraints, solving the inverse function by variable substitution is introduced, and the primary problem is transformed to a linear form. Finally, the Lagrangian function of the transformed optimization problem is solved, and the optimal solution of the problem is obtained by performing several iterations of the projection gradient method and the CVX solver alternatively. The simulations verify that the nonlinear-multi-EH circuits model is effective to improve energy conversion efficiency and reduce the energy consumption of the base station, and the results show that there is at least 26.4% improvement on energy saving compared to the benchmark schemes.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"188 ","pages":"Article 155569"},"PeriodicalIF":3.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

16-nW 0.5-V low-pass filter for bio-signal applications 用于生物信号应用的 16-nW 0.5-V 低通滤波器

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-31 DOI: 10.1016/j.aeue.2024.155570

Punnavich Phatsornsiri , Montree Kumngern , Fabian Khateb , Usa Torteanchai , Natapong Wongprommoon , Tomasz Kulej

{"title":"16-nW 0.5-V low-pass filter for bio-signal applications","authors":"Punnavich Phatsornsiri , Montree Kumngern , Fabian Khateb , Usa Torteanchai , Natapong Wongprommoon , Tomasz Kulej","doi":"10.1016/j.aeue.2024.155570","DOIUrl":"10.1016/j.aeue.2024.155570","url":null,"abstract":"<div><div>A low-voltage, ultra-low power fully differential low-pass filter for bio-signal applications using multiple-input fully differential operational transconductance amplifiers (OTA) is presented in this article. The multiple inputs of OTA can be achieved using multiple-input dynamic threshold MOS transistor (MIDT-MOST) technique. The novelty of this work is to exhibit the proposed filter using multiple-input OTAs, which leads to a reduction in the number of active OTAs and power consumption. The fourth-order low-pass filter that is cascaded by two second-order filters has been presented. The fourth-order low-pass filter is designed and simulated in the Cadence environment using the 0.18 μm CMOS technology from TSMC at a supply voltage of 0.5 V. The simulation results show that the filter consumes 16 nW of power at a bandwidth of 110 Hz, has a total harmonic distortion (THD) of 1 % at 204.96 mV input amplitude, and provides dynamic range of 69.24 dB. These results indicate that the proposed low-pass filter can be applied to bio-signal processing applications.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"188 ","pages":"Article 155570"},"PeriodicalIF":3.0,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

2-D DOA estimation based on discrete fractional Fourier transform for L-shaped nested array 基于离散分数傅里叶变换的 L 型嵌套阵列 2-D DOA 估计

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-28 DOI: 10.1016/j.aeue.2024.155565

Lang Zhou , Kun Ye , Jie Qi , Shaohua Hong , Zihao Feng

{"title":"2-D DOA estimation based on discrete fractional Fourier transform for L-shaped nested array","authors":"Lang Zhou , Kun Ye , Jie Qi , Shaohua Hong , Zihao Feng","doi":"10.1016/j.aeue.2024.155565","DOIUrl":"10.1016/j.aeue.2024.155565","url":null,"abstract":"<div><div>Yielding better estimation performance for two-dimensional (2-D) direction-of-arrival (DOA) estimation at limited snapshots and low signal-to-noise ratios (SNRs) has recently attracted increasing attention. Aiming at this, a 2-D DOA estimation algorithm based on discrete fractional Fourier transform and Taylor expansion approximation (DFRFT-TEA) for the L-shaped nested array (LsNA) is proposed. Specifically, the discrete fractional Fourier transform (DFRFT) method is first introduced to generate the initial estimated angles, then the Taylor expansion approximation (TEA) method is utilized to compensate the angular offsets to obtain the fine estimated angles, and finally the pair-matching of the fine estimated angles is achieved by the permutation matrix. The findings of the numerical simulation show that the DFRFT-TEA algorithm not only has favorable DOA estimation performance under finite snapshots and low SNRs but also can be adapted to DOA estimation for the underdetermined scenario. Furthermore, the proposed DFRFT-TEA algorithm provides superior estimation performance in comparison to the existing algorithms.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155565"},"PeriodicalIF":3.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and experimental investigation of an origami inspired X-band accordion waveguide 受折纸启发的 X 波段手风琴波导的设计与实验研究

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-24 DOI: 10.1016/j.aeue.2024.155567

Fatih Özkan ALKURT

{"title":"Design and experimental investigation of an origami inspired X-band accordion waveguide","authors":"Fatih Özkan ALKURT","doi":"10.1016/j.aeue.2024.155567","DOIUrl":"10.1016/j.aeue.2024.155567","url":null,"abstract":"<div><div>This paper presents design, numerical analysis and experimental investigation of an origami inspired X-band accordion waveguide that is aimed to create a flexible and adaptive solutions. The design process is conducted in a Finite Integration Technique (FIT) based microwave simulation software to model and simulate the proposed waveguide, and that shows structural benefits of origami technique based paper folding. Proposed waveguide model is numerically analyzed under both X and Y bending with 30˚, 60˚, 90˚ and 120˚ bending angle to provide its flexibility. Besides, the electric and magnetic field distributions were also obtained and explained in details to provide working mechanism of the proposed accordion waveguide. The S21 transmission characteristics between ports exhibits a decrease of 0.015 dB in numerical results, which is negligible and acceptable in applications. The experimental results demonstrate that the proposed waveguide has effective transmission characteristics within the 8–12 GHz X-band frequency range, with a satisfactory S21 transmission parameter. The numerical and experimental results show that proposed origami inspired accordion waveguide has a huge potential for application in dynamic microwave and satellite components.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155567"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance assessment of SiGe extended four corner source TFET for biosensing applications 用于生物传感应用的锗硅扩展四角源 TFET 性能评估

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-24 DOI: 10.1016/j.aeue.2024.155568

Malihe Mahoodi, Seyed Ebrahim Hosseini

{"title":"Performance assessment of SiGe extended four corner source TFET for biosensing applications","authors":"Malihe Mahoodi, Seyed Ebrahim Hosseini","doi":"10.1016/j.aeue.2024.155568","DOIUrl":"10.1016/j.aeue.2024.155568","url":null,"abstract":"<div><div>In this paper, the performance of a novel SiGe extended four corner source tunneling field–effect transistor (SiGe EFCS TFET) based dielectrically modulated label-free biosensor has been investigated for biosensing applications. Using a combination of heterostructure (SiGe/Si) and extended four corner source (EFCS) lead to increased band–to–band tunneling (BTBT) probability, improved gate control and superior drain current sensitivity for biomolecule conjugation in comparison with a conventional TFET and Si EFCS TFET structures of similar dimensions. The influence of both the charge–neutral and charged biomolecules on the sensitivity performance is investigated using the Silvaco TCAD ATLAS semiconductor device simulator with a calibrated nonlocal BTBT model. Four different kinds of biomolecules such as Streptavidin, Ferro–cytochrome <em>c</em>, Keratin and Gelatin with various charge density values were used for this purpose. In order to model steric hindrance effects in partially filled cavities, in addition to various fill factors, four different step profile patterns have considered such as convex, concave, decreasing and increasing step profiles. Also, the dependence of the nanogap cavity properties on the sensing performance in terms of the length and thickness is investigated. A maximum drain current sensitivity of 1.69 × 10<sup>5</sup> is achieved in SiGe EFCS TFET for Gelatin biomolecules in a fully filled nanogap cavity at overdrive and drain voltages of 0.5 V.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"188 ","pages":"Article 155568"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nature-inspired metaheuristic optimization algorithms for FDTD dispersion modeling 用于 FDTD 分散建模的自然启发元搜索优化算法

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-23 DOI: 10.1016/j.aeue.2024.155564

Jaesun Park, Jeahoon Cho, Kyung-Young Jung

{"title":"Nature-inspired metaheuristic optimization algorithms for FDTD dispersion modeling","authors":"Jaesun Park, Jeahoon Cho, Kyung-Young Jung","doi":"10.1016/j.aeue.2024.155564","DOIUrl":"10.1016/j.aeue.2024.155564","url":null,"abstract":"<div><div>Optimization algorithms have been employed for a variety of applications such as engineering design optimization, machine learning, control systems, computer science and software engineering. Among various optimization approaches, nature-inspired metaheuristic optimization algorithms excel in addressing complex optimization problems by considering various constraints and optimizing a wide array of variables and target functions. In finite-difference time-domain (FDTD) methods for complex dispersive media, it is crucial to derive accurate dispersion model parameters that satisfy the numerical stability conditions by applying an optimization algorithm. In this work, we apply five representative nature-inspired metaheuristic optimization algorithms to extract accurate and numerically stable dispersion modeling parameters: continuous genetic algorithm, particle swarm optimization (PSO), artificial bee colony, grey wolf optimization, and coyote optimization algorithm. To achieve a comprehensive analysis, this study examines the FDTD dispersion modeling for various materials across different frequency ranges. The numerical examples illustrate that PSO excels at extracting numerically stable and highly accurate parameters for the FDTD dispersion model.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155564"},"PeriodicalIF":3.0,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Secrecy performance intelligent prediction for CRNs: An Self-CondenseNet approach CRN 的保密性能智能预测：自紧密网络方法

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-22 DOI: 10.1016/j.aeue.2024.155562

Yanyang Zeng , Dawei Zhang , Bo Chen , Panpan Jia , Jiangfeng Sun

{"title":"Secrecy performance intelligent prediction for CRNs: An Self-CondenseNet approach","authors":"Yanyang Zeng , Dawei Zhang , Bo Chen , Panpan Jia , Jiangfeng Sun","doi":"10.1016/j.aeue.2024.155562","DOIUrl":"10.1016/j.aeue.2024.155562","url":null,"abstract":"<div><div>This paper studies the physical layer security (PLS) of cognitive radio networks (CRNs) with Fisher–Snedecor <span><math><mi>F</mi></math></span> distribution. To resolve the security issues within CRNs, we derived exact expressions of the security outage probability (SOP) and the probability of strict positive secrecy capacity (SPSC) for the first time, where the SOP and SPSC are uniformly given by Meijer’s G-function. The correctness of the theoretical derivations is proved by Monte Carlo simulations. The results indicate that reducing <span><math><mi>m</mi></math></span> and increasing the ratio of <span><math><mrow><mo>(</mo><mi>m</mi><mi>s</mi><mo>,</mo><msub><mrow><mi>μ</mi></mrow><mrow><mi>E</mi></mrow></msub><mo>)</mo></mrow></math></span> will reduce SOP and increase SPSC. Moreover, we proposed the Self-CondenseNet model to predict the security performance of the system. By comparing with three deep learning algorithms of Transformer, MLP-Mixer and CondenseNet, the results show that the proposed Self-CondenseNet has the best prediction performance. Compared with the CondenseNet, the proposed Self-CondenseNet has a 78.26% higher accuracy and a 12.86% lower time complexity. Compared with the MLP-Mixer, the proposed Self-CondenseNet has a 85.29% higher accuracy. The comparison results show that the proposed algorithm has high prediction accuracy and low time complexity, and can be widely used in complex and changeable scenarios such as 5G, Internet of Vehicles (IoV), and mobile vehicle networking .etc.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155562"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and performance analysis of integrated sensing and communication scheme based on LoRa signals 基于 LoRa 信号的综合传感与通信方案的设计与性能分析

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-22 DOI: 10.1016/j.aeue.2024.155559

Qiongdan Huang, Mengyang Zhao, Liang Li, Jiejing Han, Lulu Liu

{"title":"Design and performance analysis of integrated sensing and communication scheme based on LoRa signals","authors":"Qiongdan Huang, Mengyang Zhao, Liang Li, Jiejing Han, Lulu Liu","doi":"10.1016/j.aeue.2024.155559","DOIUrl":"10.1016/j.aeue.2024.155559","url":null,"abstract":"<div><div>LoRa (Long Range) has garnered widespread adoption in Internet of Things (IoT) communications due to its extensive transmission range and robust resistance to interference. Furthermore, its capability to linearly discern deviations across both frequency and time domains renders it an ideal signal for sensing applications. Consequently, this article proposes an Integrated Sensing and Communication (ISAC) scheme based on the LoRa signal. On the communication side, while the modulation and demodulation processes of the LoRa signal are currently kept confidential, this article has theoretically derived its principles and further implemented the communication functionality of LoRa through experimental simulations. On the sensing side, through theoretical derivation and experimental simulation, the influence of different modulation information on the peak amplitude and position of pulse compression was analyzed. Two signal processing schemes are proposed to overcome the impact of modulation information, thereby enabling the sensing function. The communication and sensing performance of the proposed ISAC scheme was evaluated. Experimental results demonstrated that, even in low signal-to-noise ratio (SNR) environments, the communication function maintained a low bit error rate (BER), while the sensing function achieved a high target detection rate, both of which exhibited excellent performance.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155559"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A microwave/millimeter-wave triple-band shared-aperture antenna integrating differentially-fed patch and transmitarray 集成差分馈电贴片和发射阵列的微波/毫米波三频共用孔径天线

IF 3 3区计算机科学

Aeu-International Journal of Electronics and Communications Pub Date : 2024-10-22 DOI: 10.1016/j.aeue.2024.155563

Zi Long Ma, Yang Li Geng, Zhi Han Zhou

{"title":"A microwave/millimeter-wave triple-band shared-aperture antenna integrating differentially-fed patch and transmitarray","authors":"Zi Long Ma, Yang Li Geng, Zhi Han Zhou","doi":"10.1016/j.aeue.2024.155563","DOIUrl":"10.1016/j.aeue.2024.155563","url":null,"abstract":"<div><div>This paper presents a microwave (MW)/millimeter-wave (MMW) triple-band shared-aperture antenna. It is implemented by integrating a differentially-fed patch (3.6 GHz) and a dual-band transmitarray (TA) (26 GHz and 39 GHz) through structure reuse. To realize an efficient integration, the patch antenna is evolved from a single-layer structure to a multi-layer one, with an extended ring-shaped patch added in each layer to obtain a proper transmitting surface (TS) size. For the TA, it adopts a unit cell (UC) consisting of two interleaved slots. By adjusting the lengths of the slots, independent dynamic phase shifts covering 360<span><math><msup><mrow></mrow><mrow><mo>∘</mo></mrow></msup></math></span> can be attained for the 26 GHz and 39 GHz bands, respectively. To achieve an appropriate focal-to-diameter ratio (F/D) for the TA, a frequency selective surface (FSS) is employed to replace the ground plane of the patch antenna. Thanks to the spatial feeding architecture of the TA, the proposed antenna eliminates the need of complicated feeding network and features low feeding loss and high gain in the MMW bands. To validate the design idea, a prototype is fabricated and measured. The experimental results demonstrate that the proposed antenna can successfully operate in the three bands with peak gain of 7.6 dBi, 19.3 dBi and 19.5 dBi, respectively. In the 26 GHz and 39 GHz bands, beam scanning ranges of <span><math><mrow><mo>±</mo><mn>2</mn><msup><mrow><mn>5</mn></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> and <span><math><mrow><mo>±</mo><mn>1</mn><msup><mrow><mn>3</mn></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> can be obtained, respectively. The proposed antenna can be a promising candidate for 5G multi-band applications.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"187 ","pages":"Article 155563"},"PeriodicalIF":3.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0