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Analog spatiotemporal feature extraction for cognitive radio-frequency sensing with integrated photonics

Light(Science & Applications) 2024年第3期13卷 478-487页

作者： Shaofu Xu Binshuo Liu Sicheng Yi Jing Wang Weiwen Zou State Key Laboratory of Advanced Optical Communication Systems and Networks Intelligent Microwave Lightwave Integration Innovation Center(imLic)Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghaiChina

Analog feature extraction(AFE)is an appealing strategy for low-latency and efficient cognitive sensing systems since key features are much sparser than the Nyquist-sampled ***,applying AFE to broadband radio-frequency(RF)scenarios is challenging due to the bandwidth and programmability bottlenecks of analog electronic ***,we introduce a photonics-based scheme that extracts spatiotemporal features from broadband RF signals in the analog *** feature extractor structure inspired by convolutional neural networks is implemented on integrated photonic circuits to process RF signals from multiple antennas,extracting valid features from both temporal and spatial *** of the tunability of the photonic devices,the photonic spatiotemporal feature extractor is trainable,which enhances the validity of the extracted ***,a digital-analog-hybrid transfer learning method is proposed for the effective and low-cost training of the photonic feature *** validate our scheme,we demonstrate a radar target recognition task with a 4-GHz instantaneous *** results indicate that the photonic analog feature extractor tackles broadband RF signals and reduces the sampling rate of analog-to-digital converters to 1/4 of the Nyquist sampling while maintaining a high target recognition accuracy of 97.5%.Our scheme offers a promising path for exploiting the AFE strategy in the realm of cognitive RF sensing,with the potential to contribute to the efficient signal processing involved in applications such as autonomous driving,robotics,and smart factories.

关键词： scheme driving smart

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Physical Layer Encryption of OFDM-PON Based on Quantum Noise Stream Cipher with Polar Code

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China communications 2024年第3期21卷 174-188页

作者： Xu Yinbo Gao Mingyi Zhu Huaqing Chen Bowen Xiang Lian Shen Gangxiang Jiangsu Engineering Research Center of Novel Optical Fiber Technology and Communication Network Suzhou Key Laboratory of Advanced Optical Communication Network Technologythe School of Electronic and Information EngineeringSoochow UniversityNo.1 Shizi StreetSuzhou 215006China

Orthogonal frequency division multiplexing passive optical network(OFDM-PON) has superior anti-dispersion property to operate in the C-band of fiber for increased optical power budget. However,the downlink broadcast exposes the physical layer vulnerable to the threat of illegal eavesdropping. Quantum noise stream cipher(QNSC) is a classic physical layer encryption method and well compatible with the OFDM-PON. Meanwhile, it is indispensable to exploit forward error correction(FEC) to control errors in data transmission. However, when QNSC and FEC are jointly coded, the redundant information becomes heavier and thus the code rate of the transmitted signal will be largely reduced. In this work, we propose a physical layer encryption scheme based on polar-code-assisted QNSC. In order to improve the code rate and security of the transmitted signal, we exploit chaotic sequences to yield the redundant bits and utilize the redundant information of the polar code to generate the higher-order encrypted signal in the QNSC scheme with the operation of the *** experimentally demonstrate the encrypted 16/64-QAM, 16/256-QAM, 16/1024-QAM, 16/4096-QAM QNSC signals transmitted over 30-km standard single mode fiber. For the transmitted 16/4096-QAM QNSC signal, compared with the conventional QNSC method, the proposed method increases the code rate from 0.1 to 0.32 with enhanced security.

关键词： physical layer encryption polar code quantum noise stream cipher

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A meta surface-inspired ring-shaped planar wideband antenna for 5G mm-wave applications 12

A meta surface-inspired ring-shaped planar wideband antenna ...

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12th IEEE International Symposium on Signal, Image, Video, and communications, ISIVC 2024

作者： Chowdhury, Nazimul Mowla Almutairi, Ali F. Islam, Mohammad Tariqul Soliman, Md Mohiuddin International Islamic University Chittagong Electronic and Telecommunication Engineering Chittagong Bangladesh College of Engineering and Energy Khaldiya Kuwait Universiti Kebangsaan Malaysia Electronic and Systems Engineering Faculty of Engineering and Built Environment Center for Advanced Electronic and Communication Engineering Department of Electrical Selangor Bangi43600 UKM Malaysia

ISBN: (纸本)9798350385267

The pursuit of compact, high-speed, and broad-bandwidth systems has propelled communication technologies toward the fifth generation (5G). The need for extremely fast 5G speeds has led to the adoption of millimeter-wave frequencies. Technological advancements now allow the integration of mmwave into many contemporary electronic components, particularly antennas. This paper highlights a meta surface-inspired ring-shaped planar wideband antenna for 5G mm-wave applications. The antenna design includes a single resonator ring and a ground plane featuring a rectangular slot. The 1x4 antenna array is built using a thin 0.254 mm thick substrate RT/duroid 5880 material that has a relative permittivity of 2.3. The proposed design of 1x4 antenna array demonstrated a resonance frequency at 28 GHz with resonant response from 26.03 to 33.11 GHz, with a maximum gain of 9.7 dB and a radiation efficiency of 94%. The 1x4 antenna array has been placed with a ring structure meta surface (RSM) at a limited distance of 12 mm, obtaining a maximum gain of 11.4 dB. The proposed meta surface-inspired antenna array (MIAA) has obtained a 10 dB impedance bandwidth of (26.8 to 36.6 GHz), which covers the 5G NR bands n257/n258 (24.25-29.5 GHz). It stands out as a promising antenna for 5G mm-wave applications. © 2024 IEEE.

关键词： Millimeter waves

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Sub-terahertz transmissive reconfigurable intelligent surface for integrated beam steering and self-OOK-modulation

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Light(Science & Applications) 2025年第1期14卷 131-141页

作者： Dongfang Shen Feng Lan Luyang Wang Tianyang Song Munan Yang Tianyu Hu Yueting Li Xiaolei Nie Jiayao Yang Shixiong Liang Hongxin Zeng Hui-Fang Zhang Pinaki Mazumder Ziqiang Yang Yaxin Zhang Tie Jun Cui Sichuan THz Communication Technology Engineering Research Center School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu611731China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou313000China Zhangjiang Laboratory Shanghai201204China School of Microelectronics Tianjin UniversityTianjin300072China Shenzhen Institute for Advanced Study University of Electronic Science and Technology of ChinaShenzhen518100China Department of Electrical Engineering and Computer Science University of MichiganAnn ArborMI48109USA Southeast University Nanjing210096China

Boasting superior flexibility in beam manipulation and a simpler framework than traditional phased arrays,terahertz metasurface-based phased arrays show great promise for 5G-A/6G communication *** with the reflective reconfigurable intelligent surface(reflective RIS),the transmissive RIS(TRIS)offers more feasibility for transceiver multiplexing systems to meet the growing demand for high-performance beam tracking in terahertz communication and radar ***,the terahertz TRIS encounters greater challenges in phase shift,beam efficiency,and complex ***,we propose a sub-terahertz TRIS based on the phase shift via Pancharatnam-Berry(PB)metasurface and self-on-off keying(OOK)modulation via Schottky *** electrically reconfigurable unit cell consists of a column-wise phase resonator and a rectangular *** experimental retrieved equivalent lumped-element circuit model is implemented in joint field-circuit simulations and is validated by experiments.A fabricated prototype demonstrates excellent performance of TRIS with the minimum insertion loss of 2.8 dB for operational states,large bandwidth nearly covering the entire W-band for 1-bit phase shift,deep OOK amplitude modulation of 12 dB,and wide scanning range of±60°with low specular *** further implement an integrated platform combining high-speed beam steering and spatial-light modulation,verifying the point-to-point signal transmissions in different directions using the TRIS *** proposed TRIS with high-performance and cost-effective fabrication makes it a promising solution to terahertz minimalist communication systems,radar,and satellite communication systems.

关键词： reconfigurable reflective resonator

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Multi-Layer RIS on Edge: communication, Computation and Wireless Power Transfer

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IEEE Internet of Things Magazine 2025年第3期8卷 100-108页

作者： Chen, Shuyi Jia, Junhong Zhang, Baoqing Hui, Yingzhe Qin, Yifan Meng, Weixiao Xu, Tianheng Harbin Institute of Technology Communication Research Center China-Chile ICT Belt and Road Joint Laboratory China Beijing Institute of Electronic System Engineering China Harbin Engineering University Ministry of Education Key Lab of In-fiber Integrated Optics China Shanghai Advanced Research Institute Chinese Academy of Sciences China

The rapid expansion of Internet of Things (IoT) and its integration into various applications high-light the need for advanced communication, computation, and energy transfer techniques. However, the traditional hardware-based evolution of communication systems faces challenges due to exces-sive power consumption and prohibitive hardware cost. With the rapid advancement of reconfigu-rable intelligent surface (RIS), a new approach by parallel stacking a series of RIS, i.e., multi-lay-er RIS, has been proposed. Benefiting from the characteristics of scalability, passivity, low cost, and enhanced computation capability, multi-layer RIS is a promising technology for future massive IoT scenarios. Thus, this article proposes a multi-layer RIS-based universal paradigm at the network edge, enabling three functions, i.e., multiple-input multi-ple-output (MIMO) communication, computation, and wireless power transfer (WPT). Starting by pic-turing the possible applications of multi-layer RIS, we explore the potential signal transmission links, energy transmission links, and computation pro-cesses in IoT scenarios, showing its ability to handle on-edge IoT tasks and associated green challeng-es. Then, these three key functions are analyzed respectively in detail, showing the advantages of the proposed scheme, compared with the traditional hardware-based scheme. To facilitate the implementation of this new paradigm into reality, we list the dominant future research directions at last, such as inter-layer channel modeling, resource allocation and scheduling, channel estimation, and edge training. It is anticipated that multi-layer RIS will contribute to more energy-efficient wireless networks in the future by introducing a revolution-ary paradigm shift to an all-wave-based approach. © 2018 IEEE.

关键词： Energy transfer

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On-Body Analysis on Circular Patch Flexible Wearable Antenna for Sub-6 GHz 5G Applications 1

On-Body Analysis on Circular Patch Flexible Wearable Antenna...

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1st IEEE International Conference on communication engineering and Emerging Technologies, ICoCET 2024

作者： Afroz, Sadia Al-Hadi, Azremi Abdullah Azemi, Saidatul Norlyana Hoon, Wee Fwen Padmanathan, Surentiran Nor Che Isa, Che Muhammad Sahoo, Bikash Chandra Loh, Yen San Tung, Lun Hao Lim, Lai Ming Samsudin, Zambri Mansor, Idris Soh, Ping Jack Universiti Malaysia Perlis Advanced Communication Engineering Center of Excellence Faculty of Electronic Engineering & Technology Perlis Arau02600 Malaysia Manufacturing Technology & Innovation Department Penang Malaysia Oulu90570 Finland

ISBN: (纸本)9798331504144

This paper emphasizes on performance analysis of a flexible wearable antenna designed for 5G applications near human body model. The 55×46x0.4 mm3antenna features a slotted circular ring patch as the radiating element, uses polyester as the wearable substrate, and has a partial ground plane on the underside providing a bandwidth of 300 MHz between 3.50 and 3.80 GHz and 160 MHz between 4.86 and 5.02 GHz. Since the antenna is wearable the functionally of the antenna must be required to investigate near human body. SAR assessment has performed throughout the entire bandwidth to ensure the safety of the wearer (maintaining SAR within the safety regulation of ICNIPR, threshold 2W/kg per 10g of tissue). © 2024 IEEE.

关键词： Wearable antennas

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MIMO Capacity Analysis of Wearable Antennas in FR3 Lower Band 10

MIMO Capacity Analysis of Wearable Antennas in FR3 Lower Ban...

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10th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless communications, MAPE 2024

作者： Xu, Hongda Li, Kun Liu, He Li, Chunxiao Sun, Yanfeng Wang, Xiaolong College of Electronic Science and Engineering Jilin University Changchun China Advanced Wireless and Communication Research Center The University of Electro-Communications Tokyo Japan International Center of Future Scinence Jilin University Changchun China College of Electronic Science and Engineering Jilin University Changchun China

ISBN: (纸本)9798331533922

This paper analyzes the channel capacity of wearable antennas in the FR3 lower band (7 GHz). Based on the dynamic motion of human arm swinging, the channel capacities of four different wearable MIMO arrays arrangements are analyzed using a Monte Carlo simulation algorithm. The difference caused by the utilized channel model, Clarke's model and the Cluster model, was compared. The average channel capacity obtained under the Clarke model maintains at 28.5 bits/s/Hz. On the other hand, when using the Cluster model, the wide range fluctuation of MIMO capacity between 18.5 bitslslHz and 32.6 bitslslHz is observed. This fact reveals that the MIMO capacity of a wearable antenna under the Cluster model is more dependent on the practical use scenarios compared to that of the Clarke's model. © 2024 IEEE.

关键词： Intelligent systems

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Clos-based All-optical Switching Architecture Supporting Mixed Unicast & Multicast Datacenter Services

Clos-based All-optical Switching Architecture Supporting Mix...

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2023 Opto-electronics and communications Conference, OECC 2023

作者： Lin, Jiemin Li, Yongcheng Shen, Gangxiang Soochow University School of Electronic and Information Engineering Jiangsu Engineering Research Center of Novel Optical Fiber Technology and Communication Network Suzhou Key Laboratory of Advanced Optical Communication Network Technology Suzhou China

ISBN: (纸本)9781665462136

We design a new multicast-enabled Clos optical switching (MCOS) architecture for datacenter networks. Simulation results show that the proposed architecture can significantly reduce the blocking probabilities of both unicast and multicast services compared with the conventional WSS-based Clos network. It is also found that when the ratio of splitters in the MCOS network is set to be the same as the proportion of multicast services, the proposed architecture can achieve an optimal blocking performance. © 2023 IEEE.

关键词： Blocking probability

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Development of CPW Fed Patch Antenna for Ground Penetrating Radar Application using APAST Optimization

Development of CPW Fed Patch Antenna for Ground Penetrating ...

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2024 International Symposium on Antennas and Propagation, ISAP 2024

作者： Azhari, Mohd Syahir Ahmad Azemi, Saidatul Norlyana Ghazali, Mimi Diana Isa, Che Muhammad Nor Che Al-Hadi, Azremi Abdullah Fazilah, Ainur Fasihah Mohd Advanced Communication Engineering Center of Excellence Faculty of Electronic Engineering Technology Universiti Malaysia Perlis Perlis Arau02600 Malaysia Department of Geomatics Science Universiti Teknologi Mara Perlis Arau02600 Malaysia

ISBN: (纸本)9798350364774

GPR is a non-destructive geophysical method used to detect subsurface structures, and its effectiveness depends on the antenna design whereby this research introduces a Rectangular CPW Fed Patch Antenna for GPR, with sensing capabilities up to 0.5m depth at *** antenna, made with Rogers RO4003C substrate (228x304x0.81 mm3), achieves -32.56dB of S11, 4.78dBi of realized gain, 90% of radiation efficiency, 1.048:1 of VSWR and optimized by APAST. © 2024 IEEE.

关键词： Ground penetrating radar systems

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A Smart Monitoring Patients For Remote Quarantine Using Disposable RFID Wristband Tag Technology 10

A Smart Monitoring Patients For Remote Quarantine Using Disp...

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10th IEEE Asia-Pacific Conference on Applied Electromagnetics, APACE 2024

作者： Azemi, Saidatul Norlyana Azhari, Mohd Syahir Ahmad Fazilah, Ainur Fasihah Mohd Al-Hadi, Azremi Abdullah Amir, Amiza Wahab, Suhaila Ab Chern, Ang Wei Universiti Malaysia Perlis Advanced Communication Engineering Center Faculty of Electronic Engineering Technology Perlis Arau02600 Malaysia Hospital Tuanku Fauziah Department of Medicine Perlis Kangar Malaysia Perlis Kangar Malaysia

ISBN: (纸本)9798350364163

The application of Radio Frequency Identification (RFID) technology in healthcare environments has proven to be an efficient solution for data capture and sharing, enhancing operations such as patient management and equipment tracking. In response to the challenges posed by the COVID-19 pandemic, a real-time monitoring and localization system for Persons Under Surveillance (PUS) and Persons Under Investigation (PUI) has been developed. The system integrates a Frequency Selective Surface (FSS) RFID Wristband Tag Antenna, which improves antenna performance, and is designed for flexible, low-cost fabrication using photo paper on medical wristbands. This RFID-based system, connected to a web-based platform via Internet of Things (IoT) and cloud technology, allows for real-time monitoring across multiple devices. The system provides immediate alerts to authorities, healthcare personnel, and families if a quarantined individual leaves their designated area, enhancing the enforcement of quarantine protocols and improving public safety. © 2024 IEEE.

关键词： Frequency selective surfaces

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