Ran SunLecturer
■Researcher basic information
Organization
- College of Engineering Department of Electrical and Electronic Systems Engineering
- Graduate School of Science and Engineering（Master's Program） Major in Electrical and Electronic Systems Engineering
- Graduate School of Science and Engineerin（Doctoral Program） Major in Society's Infrastructure Systems Science
- Faculty of Applied Science and Engineering Domain of Electrical and Electronic Systyems Engineering
Research Areas
Research Keyword
Educational Background
Member History
External link
■Research activity information
Award
- Nov. 2021, Highly Commended Paper Award, A Battery-Less RFID-Based Wireless Vibration and Physical-Shock Sensing System Using Edge Processing for Long-Term Measurements, 2021 31st International Telecommunication Networks and Applications Conference (ITNAC)
Z. Song;R. Sun;B. Rahmadya;S. Takeda
International society - Dec. 2020, 2019年度WBS小特集号学生奨励賞
Official journal - Mar. 2020, NCSP'20 Student Paper Award
International society - Mar. 2018, 電子情報通信学会ワイドバンドシステム研究会研究活動奨励賞
Japan society - Mar. 2017, 電子情報通信学会ワイドバンドシステム研究会研究活動奨励賞
Japan society
Paper
- Wideband Interference Suppression for Automotive mmWave CS Radar: From Algorithm-Based to Learning-Based Approaches
WANG Xiaoyan; KOIZUMI Ryoto; UMEHIRA Masahiro; SUN Ran; TAKEDA Shigeki, In recent times, there has been a significant focus on the development of automotive high-resolution 77GHz CS (Chirp Sequence) radar, a technology essential for autonomous driving. However, with the increasing popularity of vehicle-mounted CS radars, the issue of intensive inter-radar wideband interference has emerged as a significant concern, leading to undesirable missed targe detection. To solve this problem, various algorithm and learning based approaches have been proposed for wideband interference suppression. In this study, we begin by conducting extensive simulations to assess the SINR (Signal to Interference plus Noise Ratio) and execution time of these approaches in highly demanding scenarios involving up to 7 interfering radars. Subsequently, to validate these approaches could generalize to real data, we perform comprehensive experiments on inter-radar interference using multiple 77GHz MIMO (Multiple-Input and Multiple-output) CS radars. The collected real-world interference data is then utilized to validate the generalization capacity of these approaches in terms of SINR, missed detection rate, and false detection rate., The Institute of Electronics, Information and Communication Engineers
IEICE Transactions on Communications, 01 Dec. 2024, [Reviewed] - Experiments of Overflow Velocity Measurement Using Millimeter-Wave MIMO Radar With a Real-Scale Pseudo Embankment
Ran Sun; Shota Tsukamoto; Katsuhide Suzuki; Shigeki Takeda; Takaya Nemoto; Kaoru Kobayashi; Kazunobu Matsumoto, Lead
IEEE Sensors Journal, 01 Oct. 2024, [Reviewed] - Stock Monitoring and Localization Systems for FIFO Method Using RFID Based Pressure Sensing Tag and AI
Danang Kumara Hadi; Zequn Song; Budi Rahmadya; Ran Sun; Shigeki Takeda
IEEJ Transactions on Electronics, Information and Systems, 01 Sep. 2024, [Reviewed] - Performance and Inference Time Tradeoff for RNN Model based Wideband Inter-radar Interference Mitigation
Yudai SUZUKI; Xiaoyan WANG; Masahiro UMEHIRA; Ran SUN; Shigeki TAKEDA, IEEE
2024 Fifteenth International Conference on Ubiquitous and Future Networks (ICUFN), 02 Jul. 2024, [Reviewed] - An Auxiliary Antenna and Repeater Node for Reading Arrayed RFID Sensor Tags in Shielded Areas
Danang Kumara Hadi; Zequn Song; Shusuke Kobayashi; Ran Sun; Budi Rahmadya; Shigeki Takeda
2nd International Symposium on Information Technology and Digital Innovation: Creative Trends in Sustainable Information Technology Design and Innovation, ISITDI 2024, 2024, [Reviewed] - Indoor Localization Based on Analyzing Observed Wi-Fi Access Point Logs Using ChatGPT
Budi Rahmadya; Yuta Sato; Shigeki Takeda; Ran Sun; Zequn Song; Danang Kumara Hadi
2nd International Symposium on Information Technology and Digital Innovation: Creative Trends in Sustainable Information Technology Design and Innovation, ISITDI 2024, 2024 - EXPERIMENTAL STUDY ON EROSION SUPPRESSION EFFECT DURING OVERFLOW OF CRUSHED SHELL LAYER ON SHALLOW SLOPE BEHIND FULL SCALE RIVER LEVEES
NEMOTO Takaya; KOBAYASHI Kaoru; MATSUMOTO Kazunobu; TAKEDA Shigeki; Ran Sun, 線状降水帯に伴う豪雨災害が激甚化・頻発化しており，水災害の増加が懸念されている．破堤の86％は越水が主要因と報告されており，越水しても破堤までの時間を少しでも長くする「粘り強い河川堤防」が求められている．国土交通省は，前記の技術開発目標として，越流水深0.3 m，越流時間3時間を提示している．また，これまでの破堤事例から越流流速3 m/s未満の場合は破堤しないことも報告されている．以上より，本論文では越流水深0.3 m，越流時間3時間に加えて，越流流速3 m/s超の越流水に対し，実規模大の越水実験において，水路内に敷設した2タイプの破砕貝殻層の侵食抑制効果を検証した．その結果，シェルネット型の破砕貝殻層は前記3条件の越流水に対して侵食抑制効果を発揮することを明らかにした．, Japan Society of Civil Engineers
Advances in River Engineering, 2024, [Reviewed] - Indoor Area Estimation System Using RSSI-Measuring Handheld Reader Utilizing Directional Reference RFID Tags and Machine Learning
Danang Kumara Hadi; Zequn Song; Budi Rahmadya; Shogo Kozume; Tomonori Sumiya; Ran Sun; Shigeki Takeda; Xiaoyan Wang
IEEE Access, 2024, [Reviewed] - Experimental Evaluations on Learning-based Inter-radar Wideband Interference Mitigation Method
Koizumi Ryoto; Wang Xiaoyan; Umehira Masahiro; Sun Ran; Takeda Shigeki, In recent years, high-resolution 77GHz band automotive radar, which is indispensable for autonomous driving, has been extensively investigated. In the future, as vehicle-mounted CS (chirp sequence) radars become more and more popular, intensive inter-radar wideband interference will become a serious problem, which results in undesired miss detection of targets. To address this problem, learning-based wideband interference mitigation method has been proposed, and its feasibility has been validated by simulations. In this paper, firstly we evaluated the tradeoff between interference mitigation performance and model training time of the learning-based interference mitigation method in a simulation environment. Secondly, we conducted extensive inter-radar interference experiments by using multiple 77GHz MIMO (Multiple-Input and Multiple-output) CS radars and collected real-world interference data. Finally, we compared the performance of learning-based interference mitigation method with existing algorithm-based methods by real experimental data in terms of SINR (signal to interference plus noise ratio) and MAPE (mean absolute percentage error)., The Institute of Electronics, Information and Communication Engineers
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Jan. 2024, [Reviewed] - A Stray Read Suppression Method in UHF passive RFID Systems Utilizing a Metal Plate
Arai Hoshihiko; Takeda Shigeki; Sun Run, Radio frequency identification (RFID) systems enable us to achieve highly efficient inventory management and inspection work. However, if an RFID reader increases its transmission power to read densely arranged RFID tags in a cardboard box, stray reads of the RFID tags occur. These unwanted reads degrade the overall inventory performance. This letter proposes a reliable reading method for densely arranged RFID tags while suppressing stray reads., The Institute of Electrical Engineers of Japan
IEEJ Transactions on Electronics, Information and Systems, 01 Aug. 2023, [Reviewed] - River-water-level Monitoring with 24GHz FMCW Radar
Sun Ran; Takeda Shigeki; Kuwahara Yuji; Kobayashi Kaoru, Lead, This paper proposed a process of river-water-level monitoring using a 24 GHz FMCW (Frequency modulated continuous wave) radar. To improve its monitoring accuracy, the use of detected river velocities and the quartile-range limitation method excludes the outliers of calculated distances to water. The experiments at an actual river validated the effectiveness of the proposed process., The Institute of Electrical Engineers of Japan
IEEJ Transactions on Electronics, Information and Systems, 01 Aug. 2023, [Reviewed] - A Feasibility Study on Monitoring Earthquake-Caused Furniture Vibrations Using Radiofrequency Identification Sensor Tags
Song Zequn; Budi Rahmadya; Ran Sun; and Shigeki Takeda, MDPI sensors
MDPI sensors, 20 Mar. 2023, [Reviewed] - A millimeter-wave automotive radar with high angular resolution for identification of closely spaced on-road obstacles
Ran Sun; Kouhei Suzuki; Yuri Owada; Shigeki Takeda; Masahiro Umehira; Xiaoyan Wang; Hiroshi Kuroda, Lead
Scientific Reports, Feb. 2023, [Reviewed] - RNN-based Interference Suppression Method for CS radar: Simulation and Experimental Evaluations
Ryoto Koizumi; Xiaoyan Wang; Masahiro Umehira; Shigeki Takeda and Ran Sun
Proc. of the International Conference on Artificial Intelligence in Information and Communication (ICAIIC 2023), Feb. 2023, [Reviewed] - An RFID-Based Wireless Vibration and Physical-Shock Sensing System Using Edge Processing
Zequn Song; Budi Rahmadya; Ran Sun; Shigeki Takeda
IEEE Sensors Journal, 15 Oct. 2022, [Reviewed] - Experimental Evaluation of the Influence of Small-scale Vegetation in a 24 GHz FMCW
R. Sun; S. Takeda; and Y. Kuwahara, Lead
IEEJ Transactions on Electronics, Information and Systems, Aug. 2022, [Reviewed] - An RFID-Based Battery-Less Vibration Monitoring System for Electrical Appliances
Zequn Song; Ran Sun; Budi Rahmadya; Shigeki Takeda
2022 International Symposium on Information Technology and Digital Innovation (ISITDI), Jul. 2022, [Reviewed] - A Higher Angular Resolution Millimeter-Wave Automotive Radar Utilizing an Antenna Element Space Pseudo Peak Suppression
K. Suzuki; Y. Owada; R. Sun; S. Takeda; M. Umehira; H. Kuroda
Joint Indo-Japanese Smart City Workshop 2022., Mar. 2022, [Reviewed] - A Higher Angular Resolution Millimeter-Wave Automotive Radar Utilizing an Antenna Element Space Pseudo Peak Suppression to Identify Obstacles on a Road
Y. Owada; K. Suzuki; R. Sun; S. Takeda; M. Umehira; H. Kuroda
Joint Indo-Japanese Smart City Workshop 2022, Mar. 2022, [Reviewed] - A Link Analysis Based Device-Free Localization Method of RFID Tags Using a Tiny Drone having a Wound-Wire for Shadowing Propagation Paths
B. Rahmadya; S. Takeda; R. Sun
Joint Indo-Japanese Smart City Workshop 2022, Mar. 2022, [Reviewed] - RFID Tag Antenna Design for Books and Document Management Applications Considering the Surrounding Paper
R. Miyajima; B. Rahmadya; S. Takeda; R. Sun
Joint Indo-Japanese Smart City Workshop 2022, Mar. 2022, [Reviewed] - A Stray Reads Suppression Method of UHF Passive RFID tags Utilizing the Image Theory
H. Arai; S. Takeda; R. Sun
Joint Indo-Japanese Smart City Workshop 2022, Mar. 2022, [Reviewed] - Visual management of medical things with an advanced color-change RFID tag
Ran Sun; Budi Rahmadya; Fangyuan Kong & Shigeki Takeda, Lead, Nature Portfolio
Scientific Reports, 26 Nov. 2021, [Reviewed] - A Battery-Less RFID-Based Wireless Vibration and Physical-Shock Sensing System Using Edge Processing for Long-Term Measurements
Z. Song; R. Sun; B. Rahmadya; S. Takeda
2021 31st International Telecommunication Networks and Applications Conference (ITNAC), Nov. 2021, [Reviewed] - M字形誘電体アレー構造による広帯域移相器
孫冉; 武田茂樹; 鹿子嶋憲一, Lead
電気学会論文誌C, Aug. 2021, [Reviewed] - Antenna Element Space Interference Cancelling Radar for Angle Estimations of Multiple Targets
Ran Sun; Junichirou Sakai; Kouhei Suzuki; Jiaying Zheng; Shigeki Takeda; Masahiro Umehira; Xiaoyan Wang; Hiroshi Kuroda, Lead, Institute of Electrical and Electronics Engineers ({IEEE})
IEEE Access, May 2021, [Reviewed] - A UHF RFID Based Battery-Less Walking Detection Sensor Tag
Z. Song; S. Takeda and R. Sun
Joint Indo-Japanese Smart City Workshop 2021, Mar. 2021, [Reviewed] - Virtually Extended Array Antennas with an Overlearning Supression for Automotive mm-Wave radars
J. Sakai; K. Suzuki; J. Zheng; R. Sun; S. Takeda and M. Umehira
Joint Indo-Japanese Smart City Workshop 2021, Mar. 2021, [Reviewed] - Proposal of Antenna Element Space Interference Cancelling Radar
R. Sun; J. Sakai; K. Suzuki; J. Zheng; S. Takeda and M. Umehira, Lead
Joint Indo-Japanese Smart City Workshop 2021, Mar. 2021, [Reviewed] - A framework to determine secure distances for either drones or robots based inventory management systems
B. Rahmadya; R. Sun; S. Takeda; K. Kagoshima; and M. Umehira, IEEE
IEEE Access, Sep. 2020, [Reviewed] - Advanced Turbo Code System with HPOS for FSO Strong Turbulence Channel
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, Lead, 信号処理学会
Journal of Signal Processing, 15 Jul. 2020, [Reviewed] - Optimization of Frame Synchronization System for Optical Wireless Hybrid PPM-OOK Frame Communication
Tomohiro Kiguchi; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed] - Enhancement of Optical Wireless Punctured Turbo Code System in Strong Turbulence Channel
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
Proceedings of RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP2020), 21 Feb. 2020, [Reviewed] - Free Space Optical Turbo Coded Communication System with Hybrid PPM-OOK Signaling
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEICE
IEICE transactions on fundamentals of electronics, communications and computer sciences, 01 Jan. 2020, [Reviewed] - Frame Synchronization Performance of Optical-Wireless Hybrid BPPM-OOK System
Tomohiro Kiguchi; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa
2019 29th International Telecommunication Networks and Applications Conference (ITNAC), Nov. 2019, [Reviewed] - Proposal of Frame Synchronization Method for Optical Turbo Coded System with Hybrid PPM-OOK Signaling
Tomohiro Kiguchi; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
Proceedings of 2019 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS), Aug. 2019, [Reviewed] - Optical-Wireless VN-CSK Communication-Based Indoor Positioning System
Hikari Iizuka; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
Journal of Signal Processing, Jul. 2019, [Reviewed] - Theoretical Analysis of Frame Error Detecting Schemes for Optical-Wireless Advanced Framed-DOOK System
Yuta Asano; Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
Journal of Signal Processing, Jul. 2019, [Reviewed] - Proposal of Optical Wireless Turbo Coded System with Hybrid PPM-OOK Signaling
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
Proceedings of IEEE 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS), Dec. 2018, [Reviewed] - BER Performance Impaired by Transmission Time Offset Between Users in Optical Wireless CSK/ACDMA System Using DMPOMs
Takashi Tokunaga; Hiromasa Habuchi; Yusuke Kozawa; Ran Sun, IEEE
Proceedings of IEEE 7th Global Conference of Consumer Electronics, 12 Oct. 2018, [Reviewed] - Error Correcting Codes in Underwater RGB-LED Parallel Communication: Turbo or LDPC?
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, RISP
Proceedings of the RISP International Workshop on Nonlinear Circuits, Communication and Signal Processing, 06 Mar. 2018, [Reviewed] - Proposal of optical wireless turbo coded APPM system
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
2017 27th International Telecommunication Networks and Applications Conference (ITNAC), 18 Dec. 2017, [Reviewed] - SCDMA capability of high-density code-shift keying using dual MPOMs in optical-wireless channel
Takashi Tokunaga; Hiromasa Habuchi; Yusuke Kozawa; Ran Sun, IEEE
2017 27th International Telecommunication Networks and Applications Conference (ITNAC), 18 Dec. 2017, [Reviewed] - Impact of framed-DOOK optical wireless system using error correcting codes
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
2017 Eighth International Workshop on Signal Design and Its Applications in Communications (IWSDA), 07 Nov. 2017, [Reviewed] - Underwater Turbo-code optical communication system compatible with partial erasure channel
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
2016 IEEE Region 10 Conference (TENCON), 09 Feb. 2017, [Reviewed] - Enhancement of RGB Parallel Turbo-code System with UTPA in Optical Partial Erasure Channel
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa, IEEE
Proceeding of 13th 2016 IEEE Vehicular Technology Society Asia Pacific Wireless Communications Symposium (APWCS2016), 26 Aug. 2016, [Reviewed] - Novel Parallel Optical Turbo-code Communication System using RGB LEDs for Partial Erasure Channel
Ran Sun; Hiromasa Habuchi; Yusuke Kozawa
The 31st International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2016), 13 Jul. 2016, [Reviewed]
MISC
- Indoor Localization Method Based on the Analyses of Surrounding Wi-Fi Access Points Using ChatGPT
RAHMADYA Budi; TAKEDA Shigeki; SUN Ran; SONG Zequn; HADI Danang Kumara
電気学会研究会資料(Web), 2024 - An RFID Reader with Vibration Sensing Capabilities on GPIO Ports for Significantly Reducing its Power Consumption
SONG Zequn; HADI Danang Kumara; RAHMADYA Budi; SUN Ran; TAKEDA Shigeki
電気学会研究会資料(Web), 2024 - An Auxiliary Antenna and Repeater Node for Reading Multiple RFID Sensor Tags in Shielded Areas
HADI Danang Kumara; SONG Zequn; ENDOH Moeka; KOBAYASHI Shusuke; SUN Ran; RAHMADYA Budi; TAKEDA Shigeki
電気学会研究会資料(Web), 2024 - RFID Wireless Vibration and Shock Sensor System Using Machine Learning
SONG Zequn; RAHMADYA Budi; SUN Ran; 武田茂樹
電子情報通信学会技術研究報告(Web), 2023 - An Automotive Radar Enabling Angle Estimation and Characterization of the Targets Having Significantly Different Radar Cross Sections
HISHIKI Katsuhiro; SUN Ran; TAKEDA Shigeki; KURODA Hiroshi
電気学会研究会資料(Web), 2023 - An Automotive Radar Identifying Closely Arranged Equidistant Targets Having Significantly Different Radar Cross Sections
HAMANAKA Miu; SUN Ran; TAKEDA Shigeki; KURODA Hiroshi
電気学会研究会資料(Web), 2023 - A Millimeter-Wave Automotive Radar to Identify Multiple Close Obstacles on the Road
OWADA Yuri; SUN Ran; TAKEDA Shigeki; KURODA Hiroshi
電気学会研究会資料(Web), 2023 - A multiple-point and real-time underground moisture contents measurement system for robust embankments
SHIMABUKURO Shogo; TAKEDA Shigeki; SUN Ran; SONG Zequn; KOBAYASHI Kaoru
電気学会研究会資料(Web), 2023 - Proposal of Visible Light Positioning System with MPPC Independent of Lighting Placement
SASAKI Harumu; TAKEDA Shigeki; SUN Ran
電気学会研究会資料(Web), 2023 - Proposal of Optical Wireless Turbo-code System with 4-chip-3-bit BPPM Signaling
CHIN Bunkai; SUN Ran; TAKEDA Shigeki
電気学会研究会資料(Web), 2023 - Chicken Stress Monitoring Systems for Halal Agro-Industry Supply Chain Using RFID Based Pressure Monitoring Sensor Tag on The Chicken Cage Ground on The Truck
HADI Danang Kumara; RAHMADYA Budi; HORIE Mayuri; SONG Zequn; TAKEDA Shigeki; SUN Ran
電気学会研究会資料(Web), 2023 - An Antenna Array Thinning in MIMO-Based Automotive Millimeter-Wave Radars for Suppressing a Ghost Target
TSUBAKI Keita; SUN Ran; TAKEDA Shigeki; KURODA Hiroshi
電気学会研究会資料(Web), 2023
Lectures, oral presentations, etc.
- 奨励講演 光無線通信ターボ符号システムにおける信号伝送形式の一検討 (ワイドバンドシステム)
孫 冉; 羽渕 裕真; 小澤 佑介
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報, 07 Mar. 2019, 電子情報通信学会
Research Themes
