Shun Kojima
News
2024/4/6
Journal paper has been accepted in IEEE Transactions on Vehicular Technology.
■ Shun Kojima and Shinya Sugiura, "Random pilot activation and interpolated channel estimation for physical-layer secret key generation in correlated eavesdropping channel,"
2024/3/26
Journal paper has been accepted in IEEE Transactions on Wireless Communications.
■ Shun Kojima and Shinya Sugiura, "User-independent randomized pilot activation for secure key generation,"
2024/3/19
Conference paper has been accepted to VTC 2024-Spring in Singapore.
■Kosuke Tamura, Shun Kojima, Shinya Sugiura, Jaesang Cha, and Chang-Jun Ahn, "Accurate and Doppler robust SNR estimation using multimodal CNN,"
2024/3/8
The research proposal has been accepted for Inamori Foundation.
■Shun Kojima, "Development of Physical Layer Secret Key Generation for Visible Light Communication systems," Apr. 2024 - Mar. 2026. (JPY 1,000,000)
2024/1/30
Following paper received the Best Paper Award Bronze Prize at ICEIC 2024.
■Jun-Han Wang, He He, Kosuke Tamura, Shun Kojima, Jaesang Cha, and Chang-Jun AHn, "Vehicle-To-Vehicle Communication Channel Estimator Based on Gate Recurrent Unit,"
2023/12/18
高柳健次郎財団2023年度研究奨励賞を受賞しました。
2023/12/8
産総研「覚醒プロジェクト」に採択されました。
2023/10/26
The research proposal has been accepted for The Okawa Research Foundation.
2023/8/25
Conference paper has been accepted to ATC 2023 in Da Nang, Vietnam.
■ Kosuke Tamura, Shun Kojima, Kazuki Komatsu, and Chang-Jun Ahn, "Spectrally Efficient Frequency Division Multiplexing with QRM-MLD for Rician Fading Channel,"
2023/6/12
Journal paper has been accepted in IEEE Communications Letters.
■ Yuta Matsuzaki, Shun Kojima, and Shinya Sugiura, "Deep-Learning-Based Physical-Layer Lightweight Authentication in Frequency-Division Duplex Channel,"
2023/5/19
Journal paper has been accepted in IEEE Transactions on Cognitive Communications and Networking.
■ Shun Kojima, Yuta Goto, Kazuki Maruta, Shinya Sugiura and Chang-Jun Ahn, "Timing Synchronization Based on Supervised Learning of Spectrogram for OFDM Systems,"
2023/3/12
Conference paper has been accepted to VTC 2023-Spring in Florence, Italy.
■ Yuki Sasaki, Kazuki Maruta, Shun Kojima, Daisuke Hisano, and Yu Nakayama, "Light Source Tracking System for A-QL based Display-Camera Communication,"
2023/3/9
Received IEICE Young Researcher’s Award.
2023/2/6
Journal paper has been accepted in Journal of Signal Processing.
■ He He, Jun-Han Wang, Shun Kojima, Kazuki Maruta, Chang-Jun Ahn, “Regression CNN based Fast Fading Channel Tracking using Decision Feedback Channel Estimation,”
2022/12/6
Journal paper has been accepted in Journal of Communications Software and Systems.
■ He He, Jun-Han Wang, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Data-aided weight with Subcarrier Grouping for Adaptive Array Antenna,"
2022/10/30
Conference paper has been accepted to IEEE Consumer Communications & Networking Conference (CCNC2023) in Las Vegas.
■ Yuki Sasaki, Kazuki Maruta, Shun Kojima, Daisuke Hisano, and Yu Nakayama, “Deep Learning based 2D Symbol Detection for Display-Camera Communication,"
2022/10/27
Following paper received the best paper award at IEEE/IEIE International Conference on Consumer Electronics Asia 2022 (ICCE-Asia 2022).
■ He He, Jun-Han Wang, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Data-aided weight with subcarrier grouping for Adaptive Array Interference Suppression,"
2022/9/24
Conference paper has been accepted to IEEE/IEIE International Conference on Consumer Electronics Asia 2022 (ICCE-Asia 2022) in Yeosu, Corea.
■ He He, Jun-Han Wang, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Data-aided weight with subcarrier grouping for Adaptive Array Interference Suppression,"
2022/9/21
Journal paper has been accepted in IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences.
■ He He, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Adaptive Zero-Padding with Impulsive Training Signal MMSE-SMI Adaptive Array Interference Suppression,"
2022/9/20
The research proposal has been accepted for JST ACT-X.
■Shun Kojima, "Deep Learning for Integrated Wireless Communications and Radar Signal Processing," Oct. 2022 - Mar. 2025. (JPY 6,000,000)
2022/9/1
I joined Sugiura Lab, Institute of Industrial Science, The University of Tokyo as a project research associate.
2022/5/24
Conference papers have been accepted in SNPD2022-Summer in Kyoto, Japan.
■Tatsuya Tsuchiya, Kanemitsu Ootsu, Takashi Yokota, and Shun Kojima, "Assembly code translation from ARM64 to RISC-V,"
■Jintaro Nogae, Kanemitsu Ootsu, Takashi Yokota, and Shun Kojima, "Comparison of reinforcement learning in game AI,"
2022/4/27
Conference paper has been accepted in VTC 2022-Spring Workshop in Helsinki, Finland.
■ Shun Kojima, Yi Feng, Kazuki Maruta, Kanemitsu Ootsu, Takashi Yokota, Chang-Jun Ahn, and Vahid Tarokh, “Towards Deep Learning-Guided Multiuser SNR and Doppler Shift Detection for Next-Generation Wireless Systems,"
2022/4/5
Journal paper has been accepted in IEICE Transactions on Information and Systems.
■ Takashi Yokota, Kanemitsu Ootsu, and Shun Kojima, “On a Cup-Stacking Concept in Repetitive Collective Communication,”
2022/4/4
The research proposal has been accepted for Takahashi Industrial and Economic Research Foundation.
■Shun Kojima, "Development of VLC System realizing high-frequency utilization efficiency," Apr. 2022 - Mar. 2023. (JPY 3,000,000)
2022/3/11
The research proposal has been accepted for Support Center for Advanced Telecommunications Technology Research.
■Shun Kojima, "Simultaneous estimation for multiple communication environments by deep learning to improve the frequency utilization efficiency," Apr. 2022 - Mar. 2025. (JPY 2,500,000)
2022/3/4
電気通信普及財団 研究調査助成に採択されました。
2022/2/28
日本学術振興会 科学研究費助成事業 若手研究に採択されました。
2022/2/15
さくらサイエンスプログラムで以下のテーマについて講演を行いました。
■ Shun Kojima, "Wireless Communications and Machine Learning," Sakura Science Exchange Program (hosted by Chiba University)
2022/2/4
放送文化基金の研究助成に採択されました。
2022/1/7
以下の論文がIEICE Communications Express Top Downloaded Letter Award を受賞しました。
■ Kazushi Shimada, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Adaptive Spreading Factor Assignment for VLC-OFDM-IDMA with PIC,”
2022/1/6
KDDI財団の調査研究助成に採択されました。
2021/12/21
ICT Express (IF: 4.317)に共著論文がacceptされました。
■ Hiroaki Kobayashi, Shun Kojima, Kazuki Maruta, Takatoshi Sugiyama, and Chang-Jun Ahn, "CNN-based Blind SIR Classification Framework for STPA-BAA Spectrum Superposing,"
2021/12/14
国立研究開発法人情報通信研究機構（NICT）と共同研究契約を締結しました。
2021/12/10
パワーアカデミー研究助成「萌芽研究」に採択されました。
2021/10/18
IEEE Access (IF: 3.367 ) に主著論文がacceptされました。
■ Shun Kojima, He He, Takaki Omura, Kazuki Maruta, and Chang-Jun Ahn, "Generalized Regression Neural Network based Fast Fading Channel Tracking using Frequency-Domain CSI Smoothing,"
2021/10/14
カシオ財団の研究助成に採択されました。
2021/10/11
令和3年度宇都宮大学工学部萌芽的研究助成に採択されました。
2021/10/5
Radioenginnering (IF: 0.951) に共著論文がacceptされました。
■ He He, Shun Kojima, Takaki Omura, Kazuki Maruta, and Chang-Jun Ahn, “Generalized Regression Neural Network based Channel Identification and Compensation Using Scattered Pilot,"
2021/9/20
TaiwanのHualienで開催予定のISPACS2021に共著論文がacceptされました。
■ Yuta Toyama, Shun Kojima, and Chang-Jun Ahn, “Performance Enhancement of Low Granularity MIMO-OFDMA Using FSS Method,”
2021/8/12
IEICE Communications Express に共著論文が accept されました。
■ Kazushi Shimada, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Adaptive Spreading Factor Assignment for VLC-OFDM-IDMA with PIC,”
2021/8/6
オンラインで開催される VTC 2021 - Fall Workshopに共著論文がacceptされました。
■ He He, Shun Kojima, Kentaro Yonei, Kazuki Maruta, and Chang-Jun Ahn, “Variable Frame Splitting for Polar Coded MIMO E-SDM in Fast Fading Channel,"
2021/7/13
オンラインで開催される VTC 2021 - Fall に主著論文がacceptされました。
■ Shun Kojima, Yi Feng, Kazuki Maruta, Kanemitsu Ootsu, Takashi Yokota, Chang-Jun Ahn, and Vahid Tarokh, “Investigation of Input Signal Representation to CNN for Improving SNR Classification Accuracy,"
2021/5/28
無線通信システム研究会活動奨励賞を受賞しました。
2021/4/28
IEEE Transactions on Communications (IF: 5.646 ) に主著論文がacceptされました。
■ Shun Kojima, Kazuki Maruta, Yi Feng, Chang-Jun Ahn, and Vahid Tarokh, “CNN based Joint SNR and Doppler Shift Classification using Spectrogram Images for Adaptive Modulation and Coding,”
2021/4/1
宇都宮大学学術院に助教として着任しました。
2021/3/1
以下の論文が第15回信号処理学会論文賞を受賞しました。
■ Shun Kojima, Koya Watanabe, Kazuki Maruta and Chang-Jun Ahn, “Joint Adaptive Modulation and Transmit Power Control on Frequency Symbol Spreading OFDM Mobile Relay System," Journal of Signal Processing, vol. 23, no. 3, pp. 83-93, May 2019.
2021/1/20
IEEE Access (IF: 3.745 ) に共著論文がacceptされました。
■ Kosuke Shima, Shun Kojima, Koki Ito, Kazuki Maruta, and Chang-Jun Ahn, “Adaptive Subcarrier Grouping for MMSE-SMI Adaptive Array Interference Suppression,”
2020/10/28
オンラインで開催されるICETC2020に論文がacceptされました。
■ Yuta Goto, Shun Kojima, Koki Ito, Naoya Tanuma, Kakeru Matsubara, Kazuki Maruta, and Chang-Jun Ahn, “A Preamble-less Symbol Timing Synchronization for OFDM Systems Using Convolutional Neural Networks,”
■ Yoto Namie, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “Convolutional Neural Network aided SNR Estimation Using IQ Constellation Images,”
■ He He, Shun Kojima, Kazuki Maruta, and Chang-Jun Ahn, “GRNN based Channel Estimation using Scattered Pilot and RBF Interpolation,”
■ Shun Kojima, Kosuke Shima, Kazuki Maruta, and Chang-Jun Ahn, “K-Factor Estimation based on Spectrogram Images by Convolutional Neural Network,”
2020/9/3
オンラインで開催されるWPMC2020に共著論文がacceptされました。
■ Seiya Hirano, Kazushi Shimada, Shun Kojima, Kazuki Maruta, Chang-Jun Ahn, “Reducing FBI and MLI Using FSS Method for Adaptive Modulated VLC-OFDM System,”
2020/7/3
発表予定です。
■ 2020年7月8日：電子情報通信学会RCS研究会＠オンライン開催
2020/5/28
IEEE VTS Tokyo/Japan Chapter 2020 Young Researcher’s Encouragement Awardを受賞しました。
2020/4/16
発表予定です。
■ 2020年4月23日：電子情報通信学会RCS研究会＠オンライン開催
■ 2020年5月25～28日：VTC2020-Spring ＠オンライン開催
2020/2/29
Belgium の Antwerp で開催される VTC 2020 - Spring に共著論文がacceptされました。
■ Kazuki Maruta, Shun Kojima, Chang-Jun Ahn, Daisuke Hisano, Yu Nakayama, “Blind SIR Estimation by Convolutional Neural Network Using Visualized IQ Constellation,”
2020/2/12
電気通信普及財団の海外渡航旅費援助に採択されました。
2020/1/11
Belgium の Antwerp で開催される VTC 2020 - Spring に筆頭論文がacceptされました。
■ Shun Kojima, Kazuki Maruta and Chang-Jun Ahn, “High-precision SNR Estimation by CNN using PSD Image for Adaptive Modulation and Coding,"
2019/10/05
IEEE Access (IF: 4.098) に筆頭論文がacceptされました。
■ Shun Kojima, Kazuki Maruta and Chang-Jun Ahn, “Adaptive Modulation and Coding using Neural Network based SNR Estimation,”
2019/9/5
第3回コミュニケーションクオリティ学生ワークショップ優秀ポスター賞を受賞しました。
2019/9/1
発表予定です。
■ 2019年9月5日：第3回CQ学生ワークショップ ＠大学セミナーハウス（東京）
■ 2019年10月24日：電子情報通信学会RCS研究会 ＠横須賀テレコムリサーチパーク （神奈川）
2019/7/2
IEICE Communications Express に共著論文が accept されました。
■ Takaki Omura, Shun Kojima, Kazuki Maruta and Chang-Jun Ahn, “Neural Network based Channel Identification and Compensation,”
2019/6/13
発表予定です。
■2019年6月21日：電子情報通信学会RCS研究会 ＠宮古島平良港ターミナルビル
・小島 駿, 丸田一輝, 安 昌俊, "適応変調符号化のためのニューラルネットワークを用いたSNR推定,"
■2019年7月11日：電子情報通信学会RCS研究会 ＠I-Site なんば（大阪）
・小島 駿, 丸田一輝, 安 昌俊, "畳み込みニューラルネットワークを用いたSNR推定法,"
2019/6/12
日本学生支援機構第一種奨学金（2017年4月～2018年9月）の返還免除（全額）が決定しました。
2019/5/24
日本学生支援機構第一種奨学金（2018年10月～2021年10月）の返還免除対象者に内定しました。