Aeu-International Journal of Electronics and Communications最新文献

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Resource-efficient power allocation for enhanced reliability in cooperative turbulent NLOS UVC systems 协作型湍流NLOS UVC系统资源高效功率分配提高可靠性
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-04 DOI: 10.1016/j.aeue.2026.156367
Kamal K. Garg, Rachna Sharma
{"title":"Resource-efficient power allocation for enhanced reliability in cooperative turbulent NLOS UVC systems","authors":"Kamal K. Garg,&nbsp;Rachna Sharma","doi":"10.1016/j.aeue.2026.156367","DOIUrl":"10.1016/j.aeue.2026.156367","url":null,"abstract":"<div><div>Non-line-of-sight (NLOS) ultraviolet communication (UVC) offers a distinct advantage over infrared and visible light communication by eliminating the complex requirements for pointing, acquisition, and tracking (PAT). However, the extremely high path loss of UVC significantly restricts its operational range, and atmospheric turbulence-induced fading severely degrades the communication quality. To overcome these limitations and enable reliable long-distance UVC over weak turbulent channels, we propose a dual-hop cooperative NLOS UVC system. This system incorporates multiple transceiver branches at the source and destination nodes, with a single branch relay. We analyze the system’s performance using the standard metrics of outage probability and relative diversity order. Furthermore, we address energy efficiency and reliability by performing optimum power allocation across the source and relay nodes. We first formulate this as a convex optimization problem and then utilize the stochastic gradient algorithm to find the global minimum. An extensive numerical study is conducted to evaluate the system in various configurations, yielding several useful insights. Our primary findings demonstrate that configurations with a symmetric number of branches perform best under equal power allocation. Conversely, for asymmetric configurations, optimal performance requires distributing power preferentially toward the node with fewer transceiver branches.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"213 ","pages":"Article 156367"},"PeriodicalIF":3.2,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147851685","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 compact circularly polarized implantable antenna for skin implant applications 一种用于皮肤植入应用的紧凑型圆极化植入式天线
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-02-27 DOI: 10.1016/j.aeue.2026.156268
Sher Shah , Syed Ahson Ali Shah , Aftab Ahmed Khan , Shahid Khan , Izaz Ali Shah , Jamal Nasir , Slawomir Koziel
{"title":"A compact circularly polarized implantable antenna for skin implant applications","authors":"Sher Shah ,&nbsp;Syed Ahson Ali Shah ,&nbsp;Aftab Ahmed Khan ,&nbsp;Shahid Khan ,&nbsp;Izaz Ali Shah ,&nbsp;Jamal Nasir ,&nbsp;Slawomir Koziel","doi":"10.1016/j.aeue.2026.156268","DOIUrl":"10.1016/j.aeue.2026.156268","url":null,"abstract":"<div><div>Implantable medical devices (IMDs) are critical for continuous health monitoring and therapeutic applications. Reliable biotelemetric communication within the highly lossy human body demands compact, efficient, and polarization-robust implantable antennas. This paper presents a circularly polarized miniaturized implantable (CPMI) antenna optimized for skin and scalp applications in the 2.45 GHz ISM band. The antenna has a compact volume of <span><math><mi>π</mi></math></span> <span><math><mo>×</mo></math></span> (4.8)<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span> <span><math><mo>×</mo></math></span> 0.5 mm<span><math><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></math></span>. To achieve circular polarization and effective miniaturization while maintaining the effective aperture for better gain performance, a circular radiator is embedded with symmetric T-shaped slots interconnected by a vertical orthogonal slot at the center base. Correspondingly, a circular aperture is introduced beneath the patch on the ground layer to enhance coupling and augment impedance matching. Full-wave simulations and measured results of a prototype embedded in minced pork exhibit good agreement. The proposed CPMI antenna offers a −10 dB impedance bandwidth of 290 MHz, an axial ratio bandwidth (ARBW) of 20%, and a measured gain of −18 dBi at 2.45 GHz. Specific absorption rate evaluated in a realistic human head model showed compliance with the IEEE standards. Furthermore, link-budget analysis confirms a reliable wireless link up to 13 m. The proposed antenna achieves an optimal balance between compactness, efficiency, and polarization stability, demonstrating strong potential for next-generation skin-implantable biomedical telemetry systems.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156268"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388171","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
Novel design and analysis of high roll-off rate ultra-wideband bandpass filter with nine reflection zeros and four transmission zeros 具有9个反射零和4个传输零的高滚降率超宽带带通滤波器的新设计与分析
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-06 DOI: 10.1016/j.aeue.2026.156286
A. Indra Kumar, Yaswanth Kalepu
{"title":"Novel design and analysis of high roll-off rate ultra-wideband bandpass filter with nine reflection zeros and four transmission zeros","authors":"A. Indra Kumar,&nbsp;Yaswanth Kalepu","doi":"10.1016/j.aeue.2026.156286","DOIUrl":"10.1016/j.aeue.2026.156286","url":null,"abstract":"<div><div>This paper presents the novel design and experimental validation of a compact high roll-off rate ultra-wideband bandpass filter(HRUWB-BPF) with a ninth-order, allowing flexibility in fractional bandwidth variation, to meet the requirements of emerging wireless communication systems operating in the L-band and S-band radar and satellite links while enabling multi-standard operation in broadband software-defined and cognitive radio RF front ends. The proposed design incorporates four transmission zeros and nine reflection zeros for the first time, resulting in sharp skirt selectivity and an enhanced fractional bandwidth. A hybrid configuration is introduced by employing cascaded coupled-line sections combined with a step-impedance open stub, which significantly improves the bandwidth response and selectivity factor. A detailed mathematical analysis based on even–odd mode theory is carried out, and closed-form expressions are derived to precisely estimate the positions of the transmission and reflection zeros, offering analytical insight into the filter mechanism. To validate the design, a prototype was fabricated and measured. The experimental results demonstrate a center frequency of 2.5<!--> <!-->GHz, 3 dB fractional bandwidth of 108%, roll-off rates of 307.7<!--> <!-->dB/GHz and 169<!--> <!-->dB/GHz at the lower and upper edges, respectively, and selectivity factor of 0.945 measured at the <span><math><mrow><mo>−</mo><mn>3</mn><mspace></mspace><mi>dB</mi></mrow></math></span> and <span><math><mrow><mo>−</mo><mn>20</mn><mspace></mspace><mi>dB</mi></mrow></math></span> passband edge frequencies. These performance metrics confirm that the proposed HRUWB-BPF is highly suitable for modern wireless communication systems.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156286"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388170","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 fast-transient capless LDO with push-pull dynamic capacitor compensation for wide range of capacitive loads 一种具有推挽式动态电容补偿的快速暂态无帽LDO,适用于大范围容性负载
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-04 DOI: 10.1016/j.aeue.2026.156275
Tiedong Cheng , Minghao Lai , Ziliang Wang , Xiao Wang
{"title":"A fast-transient capless LDO with push-pull dynamic capacitor compensation for wide range of capacitive loads","authors":"Tiedong Cheng ,&nbsp;Minghao Lai ,&nbsp;Ziliang Wang ,&nbsp;Xiao Wang","doi":"10.1016/j.aeue.2026.156275","DOIUrl":"10.1016/j.aeue.2026.156275","url":null,"abstract":"<div><div>This paper presents a capacitor-less low-dropout regulator (LDO) for digital loads, featuring fast transient response and wide load range. To improve both the loop gain of the LDO and the slew rate at the gate of the power transistor, a high-slew-rate error amplifier is adopted. Furthermore, a push-pull dynamic capacitor frequency compensation strategy is proposed, which incorporates an embedded compensation capacitor (<em>C</em><sub>f2</sub>) to generate a left-half-plane (LHP) zero for improved stability. Working in conjunction with an auxiliary flipped-voltage-follower based transient enhancement circuit, the compensation strategy collectively enhances the transient performance. Designed in a 180 nm CMOS process, the proposed LDO achieves a maximum load current of 100 mA, a load capacitance range of 0–4 nF, and a dropout voltage of 200 mV, while maintaining a quiescent current of only 49.7 μA. Under 1.7 V supply with 50 μA-100 mA load current and 100 pF load capacitance, the circuit demonstrates 120 mV/620 ns (overshoot) and 170 mV/140 ns (undershoot) performance. The maximum load regulation and line regulation are 14.81 μV/mA and 2.917 mV/V, respectively.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156275"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388174","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 analysis of RIS-assisted joint transmit and receive antenna selection ris辅助联合收发天线选择的性能分析
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-06 DOI: 10.1016/j.aeue.2026.156285
Muhammed Faruk Karabay, Oğuz Kucur
{"title":"Performance analysis of RIS-assisted joint transmit and receive antenna selection","authors":"Muhammed Faruk Karabay,&nbsp;Oğuz Kucur","doi":"10.1016/j.aeue.2026.156285","DOIUrl":"10.1016/j.aeue.2026.156285","url":null,"abstract":"<div><div>In this paper, we analyze reconfigurable intelligent surfaces (RIS)-assisted joint transmit and receive antenna selection (JTRAS) systems over Rayleigh fading channels. Closed-form expressions for the outage probability and symbol error rate are derived in the presence of phase noise, and the diversity order is obtained through asymptotic analysis. The analytical results, validated by Monte Carlo simulations, demonstrate that JTRAS significantly enhances the system performance. Moreover, the diversity order of the RIS-assisted link is shown to be half of the product of the numbers of reflecting elements, transmit, and receive antennas.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156285"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388172","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 low profile and wideband textile metasurface-based circular polarized antenna for wearable applications 一种用于可穿戴应用的低轮廓宽带纺织超表面圆极化天线
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-06 DOI: 10.1016/j.aeue.2026.156284
Mohamed El Atrash , Nourhan T. Hassan , Mahmoud A. Abdalla
{"title":"A low profile and wideband textile metasurface-based circular polarized antenna for wearable applications","authors":"Mohamed El Atrash ,&nbsp;Nourhan T. Hassan ,&nbsp;Mahmoud A. Abdalla","doi":"10.1016/j.aeue.2026.156284","DOIUrl":"10.1016/j.aeue.2026.156284","url":null,"abstract":"<div><div>A wideband, low profile, compact, and Circularly Polarized (CP) slot antenna loaded by a metasurface structure array is introduced for wearable usage. The whole structure is realized using textile materials. By etching two square slots in diagonal geometry and engraving a U-shaped slot off the Co-Planar Waveguide (CPW) ground, CP was attained along with enhancement in the 3 dB-Axial Ratio Bandwidth. The proposed CP antenna radiates from 1.35 GHz to 4 GHz, which is the impedance bandwidth; thus, covering the 2.45 GHz Industrial, Scientific, and Medical (ISM)-band. The Axial Ratio (AR) bandwidth varies from 1.6 GHz to 2.5 GHz. As such, the effective operational bandwidth for the proposed CP antenna is 1.6 GHz to 2.5 GHz. The antenna electrical size is 0.33λ<sub>0</sub> × 0.37λ<sub>0</sub> at 2.45 GHz, highlighting its compactness. To achieve low Specific Absorption Rate (SAR), a textile-based 2 × 2 metasurface structure array is loaded at the back of the CP antenna. Wideband operation was preserved after the integration process with the advantage of reducing the specific absorption rate by 99%, while achieving gain improvements over the wideband frequency band. Fabrications were conducted manually, yet the tested outcomes agreed with the software-generated results. The designed antenna has very good competitive results compared to the literature antennas.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156284"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388175","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 circularly polarized 12-port MIMO antenna with an integrated diagonal Split-ring Metasurface for Sub-6 GHz wireless systems 一种用于Sub-6 GHz无线系统的圆极化12端口MIMO天线,具有集成对角分裂环超表面
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-03 DOI: 10.1016/j.aeue.2026.156271
Ijaz Khan , Luqman Ali , Mian Muhammad Kamal , Hazem Mohammed , Chaoyun Song , Muneera Altayeb , Yizhi Shao , Heba G. Mohamed
{"title":"A circularly polarized 12-port MIMO antenna with an integrated diagonal Split-ring Metasurface for Sub-6 GHz wireless systems","authors":"Ijaz Khan ,&nbsp;Luqman Ali ,&nbsp;Mian Muhammad Kamal ,&nbsp;Hazem Mohammed ,&nbsp;Chaoyun Song ,&nbsp;Muneera Altayeb ,&nbsp;Yizhi Shao ,&nbsp;Heba G. Mohamed","doi":"10.1016/j.aeue.2026.156271","DOIUrl":"10.1016/j.aeue.2026.156271","url":null,"abstract":"<div><div>This study presents a compact twelve-port circularly polarized multiple-input multiple-output (MIMO) antenna designed for sub-6 GHz wireless systems. The antenna employs a Pacman-shaped radiating element and a diagonal split-ring (DSR) metasurface, placed 6 mm above the array. The metasurface array enhances performance by forming a low-profile Fabry-Perot cavity that strengthens broadside radiation and by reshaping the reactive near-field to suppress inter-element coupling. The overall antenna dimensions are 45 × 115 × 1.6 mm<sup>3</sup> (0.87λ₀ × 2.22λ₀ × 0.031λ₀ at 5.8 GHz), offering a compact footprint for a twelve-port circular polarization architecture. With the integration of the metasurface array, mutual coupling is reduced from approximately −15 dB to below −25 dB, and wideband circular polarization is achieved with a 3-dB axial-ratio bandwidth of 5.316–6.19 GHz. The antenna provides an impedance bandwidth of 5.35–6.28 GHz, a peak realized gain of 8.3 dBi, and an average efficiency of 75%. Excellent agreement between simulation and measurement confirms the design's reliability. Owing to its wide circular polarization bandwidth, improved gain, and strong isolation in the 5.3–6.28 GHz range, the proposed metasurface-integrated 12-port circularly polarized MIMO antenna is well suited for WLAN, WiMAX, and 5G NR n46 applications.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156271"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388177","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 of current-mode fractional-order Chebyshev filter with two MCFOAs 双mcfoa电流型分数阶切比雪夫滤波器的设计
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-06 DOI: 10.1016/j.aeue.2026.156295
Fadile Sen, Ali Kircay, Hasari Karci
{"title":"Design of current-mode fractional-order Chebyshev filter with two MCFOAs","authors":"Fadile Sen,&nbsp;Ali Kircay,&nbsp;Hasari Karci","doi":"10.1016/j.aeue.2026.156295","DOIUrl":"10.1016/j.aeue.2026.156295","url":null,"abstract":"<div><div>This study presents a fractional-order Chebyshev low-pass filter (FOCLF) circuit, which is developed using a current-mode (CM) design methodology and employs a Modified Current Feedback Operational Amplifier (MCFOA). The designed circuit offers a simple and efficient solution for analog systems thanks to its low component count, compact structure, and low power consumption. Compared to classical integer-order filters, fractional-order filters offer improved adaptability in shaping the transition and stopband responses, enabling better control over frequency characteristics and enhanced selectivity. In this work, pseudo-capacitances modeled through a fifth-order Oustaloup approximation and implemented using a Foster type-I RC network are employed to realize the fractional behavior. Frequency-domain simulations in PSpice were performed for different Chebyshev ripple values (1, 2, and 3 dB) and fractional-orders (<span><math><mrow><mi>α</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>3</mn><mo>,</mo><mn>0</mn><mo>.</mo><mn>5</mn><mo>,</mo><mn>0</mn><mo>.</mo><mn>7</mn></mrow></math></span> and 0.9), showing high agreement with theoretical responses. Monte-Carlo analyses confirmed that the filter maintains stable performance despite component tolerance variations. With a power consumption below 2 mW and low noise characteristics, the proposed filter stands out as a suitable candidate for applications such as biomedical systems, communication circuits, and sensor-based electronics.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156295"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388173","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 0.00024 mm2, 18.9fJ/conv-step CIC-reused charge-injection SAR ADC with segmented sampling capacitors for computing-in-memory 一个0.00024 mm2, 18.9fJ/反步cic重用电荷注入SAR ADC,具有分段采样电容,用于内存计算
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-05-01 Epub Date: 2026-03-04 DOI: 10.1016/j.aeue.2026.156283
Siwan Dong, Zhao Liu, Bin Zhang
{"title":"A 0.00024 mm2, 18.9fJ/conv-step CIC-reused charge-injection SAR ADC with segmented sampling capacitors for computing-in-memory","authors":"Siwan Dong,&nbsp;Zhao Liu,&nbsp;Bin Zhang","doi":"10.1016/j.aeue.2026.156283","DOIUrl":"10.1016/j.aeue.2026.156283","url":null,"abstract":"<div><div>This paper presents an area-efficient two-stage charge-injection SAR (CI-SAR) ADC for computing-in-memory (CIM) applications. By using a novel capacitive voltage-division sampling technique and proposed capacitive-divider-based charge-injection cell (CIC) reuse structure, the layout area occupied by the charge injection array is greatly reduced by 93.4%. Through proposed cooperative of coarse quantization stage and fine quantization stage, the sampled CIM signals can be accurately quantized into a 7-bit digital output with high power efficiency. Furthermore, a segmented common-mode shifting (S-CMS) technique maintains a stable common-mode voltage, preserving linearity throughout the entire conversion process. Verified in a standard 28 nm CMOS process, propose ADC occupies a chip area of only 0.00024 mm<sup>2</sup>. Operating at 1GS/s with a 1 V supply, it achieves 40.79 dB SNDR and 48.78 dB SFDR with a Walden figure of merit (FoM) of 18.9fJ/conv-step, demonstrating competitive area and power efficiency for medium-resolution CI-SAR ADCs.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"210 ","pages":"Article 156283"},"PeriodicalIF":3.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147388176","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
APCNet: A multi-scale pooling enhanced all-domain joint CSI feedback network for massive MIMO systems 面向大规模MIMO系统的多尺度池化增强型全域联合CSI反馈网络
IF 3.2 3区 计算机科学
Aeu-International Journal of Electronics and Communications Pub Date : 2026-03-01 Epub Date: 2026-01-16 DOI: 10.1016/j.aeue.2026.156212
Jianhong Xiang, Nan Zhang, Linyu Wang
{"title":"APCNet: A multi-scale pooling enhanced all-domain joint CSI feedback network for massive MIMO systems","authors":"Jianhong Xiang,&nbsp;Nan Zhang,&nbsp;Linyu Wang","doi":"10.1016/j.aeue.2026.156212","DOIUrl":"10.1016/j.aeue.2026.156212","url":null,"abstract":"<div><div>In massive multiple-input multiple-output (MIMO) systems, accurate downlink channel state information (CSI) is essential for signal preprocessing, yet achieving high-fidelity feedback under limited overhead remains challenging. To address this issue, and motivated by the sparsity and strong local spatial structure of CSI, we propose an all-domain joint CSI feedback network based on multi-scale pooling, termed APCNet. The encoder of this network introduces a spatial–frequency domain branch on the basis of the classical angle–delay domain (ADD) convolution branch, aiming to provide complete physical feature priors for the reconstruction process, fundamentally solving the information loss issue caused by single-domain modeling. On the decoder side, we propose a PCformer architecture, constructing a physically aligned extraction–reconstruction pipeline: utilizing the multi-scale pooling module for statistical extraction of multipath features, and combining the ConvNeXt Block for fine-grained restoration of spatial details. This compensates for the shortcomings of the universal self-attention mechanism in local structure representation. Experimental results demonstrate that APCNet achieves an average improvement of 7.96% in reconstruction accuracy across various compression rates for outdoor scenes, while delivering leading or competitive performance for most compression rates in indoor scenes.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"207 ","pages":"Article 156212"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025079","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
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