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39th International Conference on Information Networking, ICOIN 2025

作者： Park, Soyoon Cho, Seonmin Lee, Seongwook Jeong, Taewon Choi, Youngjae Lee, Seungeui Bae, Youngseok Chung-Ang University School of Electrical and Electronics Engineering College of ICT Engineering Seoul Korea Republic of Institute of Radio Frequency Engineering and Electronics Karlsruhe Institute of Technology Karlsruhe Germany Advanced R&D Center Hanwha Systems Gyeonggi-do Korea Republic of Emerging Science and Technology Directorate Agency for Defense Development Daejeon Korea Republic of

ISBN: (纸本)9798331506940

The classification of small, low-observable airborne targets, such as drones and birds, poses significant challenges due to their low detection rates. Conventional vision sensorbased approaches often suffer from reduced performance in low-visibility environments or adverse weather conditions. Additionally, the integration of infrared sensors alongside camera sensors increases hardware complexity and cost, rendering such solutions inefficient. To address these limitations, we propose a method that leverages deep learning and inverse synthetic aperture radar (ISAr) imaging for accurate target classification, using only radar sensors. Our proposed deep learning-based ISAr image classifier comprises two key components: simulated ISAr image generation and deep learning-based classification. We construct simulated ISAr datasets using point scatter (PS) modeling for quadcopter drones, hexacopter drones, and aircraft, and three-dimension (3d) mesh modeling for birds, unmanned aerial vehicles, and quadcopter drones. The two datasets based on PS and 3d mesh modeling are used to train a proposed deep learning classifier. The proposed classifier can achieve a classification accuracy of 98% on the PS-based dataset and 9 6% on the 3d mesh-based dataset, where scattering was calculated using the physical optics method. © 2025 IEEE.

关键词： Inverse synthetic aperture radar

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Conductor design Method Considering AC resistance for High Efficiency of PMSM using High Fill Factor Winding

Conductor Design Method Considering AC Resistance for High E...

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IEEE Conference on Electromagnetic Field Computation

作者： Kyoung-Soo Cha Soon-O Kwon Myung-Seop Lim Advanced R&D Research Group Korea Institute of Industrial Technology Daegu Republic of Korea Department of Automotive Engineering Hanyang University Seoul Republic of Korea

ISBN: (数字)9798350348958

ISBN: (纸本)9798350348965

This paper proposes the design method of conductor considering AC resistance for high efficiency of PMSM using high fill factor winding. To achieve high power density of the motor, high fill factor winding such as hairpin winding is used. MSO coils were also developed for the same purpose. However, AC resistance is generated in the high fill factor winding used in the motor, which adversely affects the efficiency of the motor. For high efficiency of the motor using high fill factor windings, the AC resistance must be reduced. Therefore, in order to reduce the AC resistance, a design method in which the size of the respective conductor layers are different is proposed. In this paper, the method of reducing AC resistance is verified through analytical methods and FEA. Next, the validity of the proposed method is verified through performance evaluation of the prototype motor designed through the proposed method.

关键词： resistance Performance evaluation Power system measurements Fill factor (solar cell) density measurement Windings Prototypes

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3d Architecture to Integrate Backside Power Interconnect and Integrated Passive device for Thermal and Electrical Performance Management of Logic Chip

3D Architecture to Integrate Backside Power Interconnect and...

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technology, Systems and Applications (VLSI-TSA/VLSI-dAT), International VLSI Symposium on

作者： C.-L. Lu S.-C. Lin C.-S. Ho H.-C. Lin M.-H. Chiu C.-H. Chuang M.-C. Lu W.-Y. Lai N. Basu Miller Liao S.-Z. Chang R&D Powerchip Semiconductor Manufacturing Corporation Hsinchu Taiwan Graduate School of Advanced Technology & Department of Mechanical Eng. National Taiwan University Taiwan

ISBN: (数字)9798350360349

ISBN: (纸本)9798350360356

A novel 3d architecture with backside power delivery network (BSPdN) and embedded 3d high density Si capacitor is proposed with the superior electrical performance and heat dissipation. Typical backside power-via technology with carrier is found to have the thermal dissipation issue. The good concentration of the mimic BSPdN daisy chain (2K contact TSVs) describes the proposed structure is well- connected after carrier with 3d high density Si capacitor and TSV integration by wafer on wafer bonding. The 3d high density (>40% density within chip) Si capacitor which is targeting to implement into carrier has good capacitance (>1.0 μF/mm2) and small capacitance variation (<8%) under the applied voltage in the range of −2 to 2 V. Moreover, the proposed structure could reduce the temperature around 26% as compared with a typical one from thermal viewpoint. In addition, from the package-level viewpoint, the proposed structure also could reduce the temperature as high as 43%.

关键词： Performance evaluation Three-dimensional displays Capacitors Computer architecture Very large scale integration Thermal management Thermal conductivity

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Optimizing Coverage and Capacity in 5G OrAN Small Cells with srsrAN Test Bed

Optimizing Coverage and Capacity in 5G ORAN Small Cells with...

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IEEE Future Networks World Forum (FNWF)

作者： Ali Ahmed Atef A. Aburas Khalid Al-Mashouq Akram Aburas Mohammad Yaser Ammar Asad Ali Khan Telecom R&D Department Advanced Communications & Electronics Systems (ACES) Riyadh KSA School of Electronics and Information Engineering Harbin Institute of Technology Harbin China

ISBN: (数字)9798350379495

ISBN: (纸本)9798350379501

The open-source srsrAN software suite testbeds have become an increasingly important tool for the development and testing of private 5G networks by research community. In recent years, private 5G network deployments have become increasingly prevalent among enterprises seeking to enhance indoor wireless coverage and connectivity. In this work, we present the results of an enhanced private 5G small cell srsrAN testbed which is in compliance with the OrAN (Open radio Access Network) architecture. The testbed configuration specifications include the utilization of the n78/C-band sub-6 GHz spectrum, a 2×2 MIMO antenna array, a 20 MHz transmission bandwidth, and an initial rF input power of approximately 8 dBm. The core hardware components include a B210 USrP software-defined radio, commercial off-the-shelf (COTS) processor and 5G user equipment (UE). To further enhance the coverage capabilities, the system design was supplemented with the integration of two power amplifier (PA) units, model BT-100, situated at the transmission end, as well as a low-noise amplifier (LNA), model BT-200, positioned at the reception end. Additionally, the system underwent software-based parametric optimization, which enabled the utilization of uplink and downlink MIMO configurations as well as 256-QAM modulation to enhance the overall system performance. Through systematic testing and evaluation, we demonstrate the impact of these hardware and software enhancements on key performance indicators (KPIs) which include downlink (dL) and uplink (UL) throughput, signal strength (dL rSrP) and latency.

关键词： 5G mobile communication Microprocessors Computer architecture Open rAN Ultra reliable low latency communication Throughput Software Hardware Uplink Testing

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Ultra Low Loss and Low Crosstalk MCF with Standard Cladding diameter

Ultra Low Loss and Low Crosstalk MCF with Standard Cladding ...

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2022 IEEE Photonics Society Summer Topicals Meeting Series, SUM 2022

作者： Takahashi, Masanori Maeda, Koichi Aiso, Keichi Mukasa, Kazunori Soma, daiki Takahashi, Hidenori Tsuritani, Takehiro Mitrovic, Miranda Palsdottir, Bera Arasitani, Yoshihiro Telecommunications & Energy Laboratories Furukawa Electric Co. Ltd. Chiba Japan Advanced Technology Laboratory Kddi Research Inc. Saitama Japan R&d Product Development Ofs Fitel Denmark ApS Brondby Denmark

An uncoupled 125-μm-cladding 4-core multicore fiber (MCF) with low attenuation loss of 0.155dB/km is reported. Span loss of 60.2km MCF is reduced to less than 10dB including fan-in and fan-out. Inter core crosstalk o... 详细信息

ISBN: (纸本)9781665434898

关键词： Crosstalk

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design and implementation of the second-generation COSPAS-SArSAT distress beacon based on Sdr

Design and implementation of the second-generation COSPAS-SA...

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IEEE International Conference on Automation, Electronics and Electrical Engineering (AUTEEE)

作者： Zheng renle Liu Wenxue Yang Chaosan Wan Jintao Li dongyang Li Jinhai Communications and Information Engineering R&D Center IMECAS Beijing China New Technology Development Department IMECAS Beijing China

COSPAS-SArSAT has currently completed the design of a new generation distress beacon systems, namely the second-generation distress beacon system. The second-generation distress beacon adopts dSSS-OQPSK as its basic signal modulation mode, while adopting a new signal detail structure. This paper provides a solution for the hardware implementation of the second-generation COSPAS-SArSAT distress beacon on Software-defined radio (Sdr). Firstly, the baseband signal that meets the definition format of the second-generation beacon standard was generated, and then the second-generation beacon was transmitted through the Universal Software radio Peripheral (USrP). By comparing with specific requirements of the second-generation distress beacon standard, the second-generation beacon generated by this paper can meet the requirements of the second-generation COSPAS-SArSAT distress beacon standard, and the method proposed in this paper has the advantages of flexibility and higher signal reconfigurability.

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A Blockchain-based IoT-Verifiable Query Service for Efficient and Authentic data retrieval in Cloud Systems 2

A Blockchain-based IoT-Verifiable Query Service for Efficien...

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2nd IEEE Global Conference on Communications and Information Technologies, GCCIT 2024

作者： Mabel rani, A. Jaya Samuthira Pandi, V. Jackson, Beulah Kumar, K.Suresh Lakshmi Priya, J. dickson Irudayaraj, V. Saveetha University Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Department of Computer Science and Engineering Chennai India Chennai Institute of Technology Centre for Advanced Wireless Integrated Technology Chennai India Vel Tech Rangarajan Dr. Sagunthala R&d Institute of Science and Technology Department of Ece India Panimalar Engineering College Department of Mba Poonamallee Chennai India Saveetha Engineering College Department of Ece Chennai India Dhanalakshmi College of Engineering Department of Ai&ds Chennai India

ISBN: (纸本)9798350388916

The integration of blockchain technology into various sectors has shown promise in enhancing security and data integrity, particularly in Internet of Things (IoT) systems. However, this amalgamation introduces challenges in data query efficiency and authenticity, especially in cloud-based settings. While blockchain offers operational streamlining and robust security, its inherent architecture involving distributed ledgers and consensus algorithms poses efficiency issues in data querying. This paper addresses the critical challenge of balancing query efficiency and data authenticity in Internet of Things (IoT)-based cloud systems. Existing solutions often lack scalability, real-time efficiency, and adaptability to the unique constraints of IoT environments. To overcome these limitations, this paper introduces the IoT-Verifiable Query Service (IoT-VQS), a scalable and secure architecture optimized for real-time data querying and verification in blockchains. This architecture demonstrates high throughput and verification accuracy, desirable for real-time cloud based applications. © 2024 IEEE.

关键词： Block chain cloud data authentication query verification

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An Enhanced Packet delivery ratio Improvement Protocol design over 5G Assisted Wireless Sensor Network Environment 2

An Enhanced Packet Delivery Ratio Improvement Protocol Desig...

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2nd IEEE Global Conference on Communications and Information Technologies, GCCIT 2024

作者： Balaji, T.S. Charaan, r.M.dilip rajalakshmi, J. Samuthira Pandi, V. Shobana, d. Priya, J. Lakshmi Srm Institute of Science and Technology Faculty of Engineering and Technology Department of Electronics and Communication Engineering Tamilnadu Chennai India Vel Tech Rangarajan Dr.Sagunthala R&d Institute of Science and Technology Department of Computer Science and Engineering Chennai India S.A.Engineering College Department of Cse Tamilnadu Chennai India Chennai Institute of Technology Centre for Advanced Wireless Integrated Technology Tamil Nadu Chennai India Rajalakshmi Engineering College Department of Mechatronics Engineering Tamil Nadu Chennai India Saveetha Engineering College Department of Electronics and Communication Engineering Tamil Nadu Chennai India

ISBN: (纸本)9798350388916

Sensors are pervasive in modern life, and Wireless Sensor Networks (WSNs) will play an increasingly important role in the years to come. Broadband, energy, coverage, and route optimization resource shortages are WSN's main drawbacks. Optimizing the packet delivery ratio is a crucial aspect of wireless sensor network (WSN) architecture. In order to enhance WSNs over the long term, previous approaches used a secure zone-based routing mechanism. For packet transmission, a new criterion was developed in multi-hop communication. It was built into the routing metric to protect against flooding, message manipulation, and dropping attacks. Congestion in WSN increases and reduces packet delivery ratio, even while energy conservation and attack resilience are accomplished. Our proposed solution, advanced Path Selection with Traffic Estimation (APSTE), is a new way of routing data packets that takes flow differentiation into account. This should help increase the packet delivery ratio and solve this issue. In order to determine how effective, the suggested method is, it is cross-validated using the standard routing model known as Link Consistency with Path Evaluation (LCPE). In order to improve the WSN's QoS parameters and extend the network's lifespan, the APSTE approach reduces the energy consumption of sensor nodes while maintaining or improving their logical throughput and packet acquisition rates. © 2024 IEEE.

关键词： 5G mobile communication systems

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dynamic microstructure evolution and mechanical properties of dilute Mg-Al-Ca-Mn alloy during hot rolling

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Journal of Materials Science & technology 2022年第34期129卷 1-14页

作者： Shiwei Xu Congcong Zhu Zhanhong Lin Chen Jin S.Kamado K.Oh-ishi Yun Qin College of Materials Science and Engineering Hunan UniversityChangsha 410082China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan UniversityChangsha 410082China Qinghai Salt Lake Teli Magnesium Co.Ltd. Xining 810000China Department of Mechanical Engineering Nagaoka University of TechnologyNagaoka 940-2188Japan Toyota Central R&D Labs. Inc.41-1 YokomichiNagakuteAichi 480-1192Japan Research Institute(R&D Centre) Baowu Steel Group CorporationShanghai 201900China

The dynamic microstructure and texture of dilute Mg-0.50Al-0.71Ca-0.33Mn(wt.%) during hot rolling at two slab temperatures were investigated by electron backscattered diffraction(EBSd) and high resolution transmission electron microscopy(HrTEM). The results show that the development of the rolling microstructures is to first form {10–12} extension twins in the original grains, thereby forming the extension-twinned regions, and then to further form {10–11}-{10–12} double twins and kinks in the extension-twinned regions, and finally to form continuous dynamic recrystallized(continuous drXed)grains in the double twins and the cross parts of the shear-deformed coarse extension-twinned *** extension twins, double twins and kinks show a decisive effect on the formation of rolling *** number of {10–11}-{10–12} double twins and resultant the continuous drX process are strongly affected by the rolling slab temperature and the reduction thickness per pass. By optimizing the rolling conditions, texture and microstructures of the multi-pass rolled Mg-Al-Ca-Mn alloy sheets are successfully modified. Although the total alloy content is only 1.5 wt.%, these Mg-Al-Ca-Mn alloy sheets show much higher strength than the commercial Mg-3Al-1 Zn(wt.%)(AZ31B) sheet.

关键词： Mg-Al-Ca-Mn alloy Hot rolling dynamic recrystallization Texture control Mechanical properties

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Low-Profile 5G mmWave Antenna-in-Package with dual-Polarization Operation

Low-Profile 5G mmWave Antenna-in-Package with Dual-Polarizat...

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Asia-Pacific Conference on Microwave

作者： M. Idrees Magray Saou-Wen Su Peng-Hao Juan Jui-Han Lu Antenna Design Department Advanced EM and Wireless Communication R&D R&D Center ASUSTek Computer Inc Taipei Taiwan Department of Electronic Communication Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan

A compact 5G mmWave antenna-in-package (AiP) with a low-profile 5-layered substrate is proposed in this conference paper. A very thin liquid crystal polymer (LCP) substrate topology is utilized with an overall thickness of 0.5 mm (around $0.05\lambda_{\mathbfr}$ at 28 GHz) only. The proposed antenna is dual-polarized and with a shorted patch radiator and a magnetic dipole radiator, which respectively contribute to the horizontal polarization (H-pol) and the vertical polarization (V-pol). For H-pol, the shorted patch radiator is excited by aperture coupled feeding via dual slots present in the ground plane. Additionally, two resonant $TM_{1/2,0,0}^{z}$ and $TM_{1,0,0}^{z}$ modes are excited in the patch that aids in the wideband coverage. For V-pol, the microstrip magnetic dipole radiator is fed by the coaxial feedline and loaded with a reflector behind the dipole to improve the front-to-back ratio. Both the orthogonal antenna ports cover the n257 5G mmWave frequency band (26.5-29.5 GHz). An optimal peak gain of more than 7.5 dBi is achieved for both antenna ports.

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