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Takumi Takahashi

高橋 拓海

Graduate School of Engineering　Division of Electrical, Electronic and Information Engineering, Assistant Professor

keyword Statistical signal processing，Wireless communication systems

Education

  • 2017/04 - 2019/03, Osaka University, Graduate School of Engineering, Division of Electrical, Electronic and Informations Engineering, Ph.D. degree
  • 2016/04 - 2017/03, Osaka University, Graduate School of Engineering, Division of Electrical, Electronic and Informations Engineering, M.S. degree
  • 2012/04 - 2016/03, Osaka University, School of Engineering, Electronic and Information Engineering

Research History

  • 2019/04 - Present, Osaka University, Graduate School of Engineering, Assistant professor
  • 2018/05 - 2019/03, University of Oulu, Finland Centre for Wireless Communications, Visiting researcher

Research Areas

  • Informatics, Information networks

Professional Memberships

  • IEEE
  • IEICE

Papers

  • Bayesian Bilinear Inference for Joint Channel Tracking and Data Detection in Millimeter-Wave MIMO Systems, Takumi Takahashi,Hiroki Iimori,Koji Ishibashi,Shinsuke Ibi,Giuseppe Thadeu Freitas De Abreu, IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. Early Access, p. 1-1, 2024/03
  • Differential active self-interference cancellation for asynchronous in-band full-duplex GFSK, Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Transactions on Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. Early Access, p. 1-14, 2024/02
  • Bilinear Gaussian Belief Propagation for Massive MIMO Detection With Non-Orthogonal Pilots, Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEEE Transactions on Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. 72, No. 2, p. 1045-1061, 2024/02
  • Joint Channel and Data Estimation via Bayesian Parametric Bilinear Inference for OTFS Transmission, Kengo Furuta,Takumi Takahashi,Kenta Ito,Shinsuke Ibi, Proc. of IEEE CCNC '24, IEEE, 2024/01/06
  • Concatenated Structure of EP and Turbo Equalizer for Overloaded Massive MIMO Detection, Takuma Kobayashi,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE CCNC '24, IEEE, 2024/01/06
  • Data-Driven Tuning of Deep Unfolding-Aided Blind Signal Separation for Short Data Length, Taisuke Nogami,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, Proc. of IEEE CCNC '24, IEEE, 2024/01/06
  • Blind Self-Interference Canceller with Adaptive Differential Delay for IBFD in the Presence of Fractional Delay Path, Koichi Nishikawa,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, Proc. of IEEE VTC '23-Fall, IEEE, 2023/10
  • Receive Beamforming Designed for Massive Multi-User MIMO Detection via Gaussian Belief Propagation, Takanobu Doi,Jun Shikida,Daichi Shirase,Kazushi Muraoka,Naoto Ishii,Takumi Takahashi,Shinsuke Ibi, IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers (IEICE), Vol. E106.B, No. 9, p. 758-767, 2023/09
  • Bayesian Receiver Design via Bilinear Inference for Cell-Free Massive MIMO with Low-Resolution ADCs, Takumi Takahashi,Hiroki Iimori,Kengo Ando,Koji Ishibashi,Shinsuke Ibi,Giuseppe Thadeu Freitas De Abreu, IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. 22, No. 7, p. 4756-4772, 2023/07
  • Wireless Location Tracking via Complex-Domain Super MDS with Time Series Self-Localization Information, Yuya Nishi,Takumi Takahashi,Hiroki Iimori,Giuseppe Abreu,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICASSP '23, IEEE, 2023/06
  • AoA Estimation-Aided Bayesian Receiver Design via Bilinear Inference for mmWave Massive MIMO, Kenta Ito,Takumi Takahashi,Koji Igarashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICC '23, IEEE, 2023/05
  • Signal Detection Based on Belief Propagation for FTN and Its Data-Driven Tuning, Yuki Hayama,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Transactions on Communications, Vol. J106-B, No. 3, p. 187-197, 2023/03
  • Data-Driven Tuning of Deep Unfolding-Aided GNSS Positioning, Natsuki Yanai,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Transactions on Communications, Vol. J106-B, No. 3, p. 248-259, 2023/03
  • Uplink Signal Detection via Look-Up Table-Based AMP for Massive MIMO Systems, Atsunori Shimamura,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), Vol. 11, p. 113044-13057, 2023/02
  • Referential Approximate Message Passing for Quantized Large MIMO Detection, Atsunori Shimamura,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE GLOBECOM '22, IEEE, 2022/12/04
  • Deep Unfolding-Aided Sum-Product Algorithm for Error Correction of CRC Coded Short Message, Qilin Zhang,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, Proc. of APSIPA ASC '22, IEEE, 2022/11
  • An Efficient Vector-Valued Belief Propagation Decoder For Quadrature Spatial Modulation, Hyeon Seok RouGiuseppe,Thadeu Freitas de Abreu,Takumi Takahashi, Proc. Asilomar Conference on Signals, Systems, and Computers '22, 2022/11
  • Joint Activity and Channel Estimation for Extra-Large MIMO Systems, Hiroki Iimori,Takumi Takahashi,Koji Ishibashi,Giuseppe Thadeu Freitas de Abreu,David Gonzalez G.,Osvaldo Gonsa, IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. 21, No. 9, p. 7253-7270, 2022/09
  • Soft-decision FEC Designed for Optically Preamplified PAM4 Direct Detection, Koji Igarashi,Takumi Takahashi,Seiichi Sampei,Kyo Inoue, Proc. OECC/PSC '22, 2022/07
  • Gaussian Belief Propagation for mmWave Large MIMO Detection with Low-Resolution ADCs, Itsuki Watanabe,Takumi Takahashi,Shinsuke Ibi,Antti Tölli,Seiichi Sampei, Proc. of IEEE SPAWC '22, 2022/07
  • Phase-Noise-Aware LLR Calculation for mmWave MIMO Systems with High-Order Modulation, Daiki Wakumoto,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE VTC '22-Spring, IEEE, 2022/06
  • Suppression of Self-Noise Feedback in GAMP for Highly Correlated Large MIMO Detection, Ryota Tamaki,Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICC '22, IEEE, 2022/05/16
  • Grant-Free Access for Extra-Large MIMO Systems Subject to Spatial Non-Stationarity, Hiroki Iimori,Takumi Takahashi,Hyeon Seok Rou,Koji Ishibashi,Giuseppe Thadeu Freitas de Abreu,David Gonzalez G.,Osvaldo Gonsa, Proc. of IEEE ICC '22, IEEE, p. 1758-1762, 2022/05/16
  • Low-Complexity Large MIMO Detection Based on Beam-Domain Local LMMSE Filters, Takumi Yoshida,Daichi Shirase,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICC '22, IEEE, 2022/05
  • Receive Beamforming for Gaussian Belief Propagation in Massive Multi-user MIMO for Reducing Fronthaul Bandwidth, Takanobu Doi,Jun Shikida,Kazushi Muraoka,Naoto Ishii,Daichi Shirase,Takumi Takahashi,Shinsuke Ibi, Proc. of IEEE WCNC '22, 2022/04
  • Low-Complexity Large MIMO Detection via Layered Belief Propagation in Beam Domain, Takumi Takahashi,Antti Tolli,Shinsuke Ibi,Seiichi Sampei, IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. 21, No. 1, p. 234-249, 2022/01
  • Negentropy-Aware Loss Function for Trainable Belief Propagation in Coded MIMO Detection, Daichi Shirase,Takumi Takahashi,Shinsuke Ibi,Kazushi Muraoka,Naoto Ishii,Seiichi Sampei, Proc. of IEEE GLOBECOM '21, IEEE, 2021/12
  • Grant-Free Access via Bilinear Inference for Cell-Free MIMO With Low-Coherence Pilots, Hiroki Iimori,Takumi Takahashi,Koji Ishibashi,Giuseppe Thadeu Freitas de Abreu,Wei Yu, IEEE Transactions on Wireless Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. 20, No. 11, p. 7694-7710, 2021/11
  • Iterative Demodulation and Decoding with Blind Channel Estimator for LoRa Modulation, Takuya Mihara,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, Proc. of IEEE VTS APWCS '21, IEEE, 2021/08
  • A Study on Conversion of NLoS to LoS conditions using Sidelink in Smart Factory Environments, Akihiro Kubota,Seiichi Sampei,Takumi Takahashi, Proc. of IEEE VTS APWCS '21, IEEE, 2021/08
  • Uplink Signal Detection for Scalable Cell-Free Massive MIMO Systems With Robustness to Rate-Limited Fronthaul, Kengo Ando,Hiroki Iimori,Takumi Takahashi,Koji Ishibashi,Giuseppe Thadeu Freitas De Abreu, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), Vol. 9, p. 102770-102782, 2021/07
  • Bayesian Joint Channel and Data Estimation for Correlated Large MIMO with Non-orthogonal Pilots, Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICC '21, IEEE, 2021/06
  • Iterative Carrier Frequency Offset Estimation with Independent Component Analysis in BLE Systems, Masahiro Takigawa,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers (IEICE), Vol. E104.B, No. 1, p. 88-98, 2021/01/01
  • Low-complexity Large MIMO Detection via Gaussian Belief Propagation, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEICE ICETC '20, 2020/12
  • Deep Unfolding-Aided Gaussian Belief Propagation for Correlated Large MIMO Detection, Daichi Shirase,Takumi Takahashi,Shinsuke Ibi,Kazushi Muraoka,Naoto Ishii,Seiichi Sampei, Proc. of IEEE GLOBECOM '20, IEEE, 2020/12
  • Bilinear Gaussian Belief Propagation for Large MIMO Channel and Data Estimation, Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE GLOBECOM '20, 2020/12
  • 3D Convolutional Neural Network-Aided Indoor Positioning Based on Fingerprints of BLE RSSI, Kodai Tasaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of APSIPA ASC '20, 2020/12
  • Subspace Marginalized Belief Propagation for mmWave Overloaded MIMO Signal Detection, Takumi Takahashi,Shinsuke Ibi,Antti Tolli,Seiichi Sampei, Proc. of IEEE ICC '20, IEEE, 2020/06
  • Low Latency Interference Cancellation for Uplink URLLC Repetition Transmission, Osamu Nakamura,Yasuhiro Hamaguchi,Takumi Takahashi,Seiichi Sampei, Proc. of VTC '20-Spring, IEEE, 2020/05
  • Information-Optimum Approximate Message Passing for Quantized Massive MIMO Detection, Liwen Wang,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), Vol. 8, p. 200383-200394, 2020
  • Low-Complexity Beam-Domain Channel Estimation with Long-Term Statistics for Large MIMO Detection, Takumi Takahashi,Antti Tolli,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE GLOBECOM '19, IEEE, 2019/12
  • Machine Learning-Aided Indoor Positioning Based on Unified Fingerprints of Wi-Fi and BLE, Shunsuke Tsuchida,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of APSIPA ASC '19, IEEE, 2019/11
  • Channel Compensation and CPR for PDM System Based on Channel Hardening Effect, Seiji Tanaka,Takumi Takahashi,Shinsuke Ibi,Koji Igarashi,Seiichi Sampei, Proc. of ACP '19, 2019/11
  • Uplink Multi-User Massive MIMO Using Gaussian BP in Highly Correlated Actual Environments, Tatsuki Okuyama,Kazushi Muraoka,Shinsuke Ibi,Takumi Takahashi,Satoshi Suyama,Jun Mashino,Seiichi Sampei,Yukihiko Okumura, Proc. of IEEE VTC '19-Fall, IEEE, 2019/09
  • A Study on Replica Generation Using LUT Based on Information Bottleneck for MF-GaBP in Massive MIMO Detection, Liwen Wang,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE VTC '19-Fall, IEEE, 2019/09
  • Concatenated Beam- and Antenna-domain Layered Belief Propagation for Large MIMO Detection, Takumi Takahashi,Antti Tolli,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ISWCS '19, IEEE, 2019/08
  • Layered Belief Propagation for Low-Complexity Large MIMO Detection Based on Statistical Beams, Takumi Takahashi,Antti Tolli,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICC '19, IEEE, 2019/05
  • Design of Adaptively Scaled Belief in Multi-Dimensional Signal Detection for Higher-Order Modulation, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEEE Transactions on Communications, Institute of Electrical and Electronics Engineers (IEEE), Vol. 67, No. 3, p. 1986-2001, 2019/03
  • Design of Criterion for Adaptively Scaled Belief in Iterative Large MIMO Detection, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Transactions on Communications, Institute of Electronics, Information and Communications Engineers (IEICE), Vol. E102.B, No. 2, p. 285-297, 2019/02/01
  • Iterative Channel Estimation with Non-Orthogonal Pilot for Large MIMO Detection in PDA, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE ICSPCS '18, IEEE, 2018/12
  • Iterative Decoding Based on Concatenated Belief Propagation for CRC-Aided Polar Codes, Satoshi Tajima,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of APSIPA ASC '18, IEEE, 2018/11
  • Structured Random Codebook Design for GABP Iterative Detection in Massive SCMA, Keisuke Inagaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE VTC '18-Spring, IEEE, 2018/06
  • Design of adaptively scaled belief in large MIMO detection for higher-order modulation, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of APSIPA ASC '17, 2017/12
  • Criterion of Adaptively Scaled Belief for PDA in Overloaded MIMO Channels, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of Asilomar Conference on Signals, Systems, and Computers '17, 2017/10
  • On Normalization of Matched Filter Belief in GaBP for Large MIMO Detection, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of IEEE VTC '16-fall, 2016/11
  • On Normalized Belief of Gaussian BP in Correlated MIMO Channels, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Proc. of ISITA '16, 2016/11

Misc.

  • A Study on Massive MIMO Channel Estimation Based on Sparse Bayesian Learning Using Hierarchical Model, Kengo Furuta,Takumi Takahashi,Kenta Ito,Shinsuke Ibi, IEICE Tech. Rep., Vol. 123, No. 340, p. 25-30, 2024/01
  • A Study on EXIT Analysis of Expectation Propagation-Based IDD for Coded Large MIMO Detection, Takahide Saiki,Takumi Takahashi,Kenta Ito,Shinsuke Ibi, IEICE Tech. Rep., Vol. 123, No. 340, p. 13-18, 2024/01
  • A Study on Autoencoder for Iterative Signal Detection in MIMO Channels, Yoshinori Ichihashi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 340, p. 115-120, 2024/01
  • Iterative Detection and Decoding of Blind Self-Interference Cancellation with Adaptive Differential Delay for IBFD, Koichi Nishikawa,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 340, p. 19-24, 2024/01
  • A Study on Autoencoder-aided Data-Driven Tuning for Linear Dispersion Code, Arata Kameda,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 340, p. 7-12, 2024/01
  • A Study on Digital RF Aided Blind Self Interference Canceller with Adaptive Differential Delay for In-Band Full-Duplex, Nana Shimomura,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 308, p. 58-63, 2023/12
  • Precoder Design for Time-Varying mmWave MIMO Detection via Expectation Propagation, Tomoharu Furudoi,Takumi Takahashi,Shinsuke Ibi, SITA2023, 2023/11
  • Bayesian Receiver Design via Bilinear Inference for MU-MIMO Systems with Carrier Frequency Offsets under Frequency-Selective Fading, Kenta Ito,Takumi Takahashi,Koji Igarashi,Koji Ishibashi,Shinsuke Ibi, SITA2023, 2023/11
  • A Study on Neural Network-Aided Prediction of Pseudo-Range Correction in GNSS Differential Positioning, Kohei Nishioka,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, The Harris science review of Doshisha University, Vol. 64, No. 3, p. 145-154, 2023/10
  • A Study on Bayesian Receiver Design for Uplink MU-MIMO Systems with Carrier Frequency Offsets, Kenta Ito,Takumi Takahashi,Koji Igarashi,Koji Ishibashi,Shinsuke Ibi, IEICE Tech. Rep., Vol. 123, No. 108, p. 70-75, 2023/06
  • A Study on Blind Self-Interference Canceller with Adaptive Differential Delay for IBFD in Frequency-Selective Fading Channels, Koichi Nishikawa,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 76, p. 229-234, 2023/06
  • A Study on Autoencoder for ICA-Aided MIMO Blind Signal Separation, Arata Kameda,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 76, p. 235-240, 2023/06
  • A Study on Neural Network-Aided Fine Tuning for Indoor Positioning based on BLE Angle of Arrival, Ginji Ohashi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 76, p. 241-246, 2023/06
  • A Study on Neural Network Aided Correction of Differential GNSS Positioning Using Auxiliary Base Station, Yuki Higashino,Yuki Higashino,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 76, p. 253-258, 2023/06
  • A Study on Adaptively Scaled Belief of PDA Iterative Receiver for QAM-FTN Signaling, Rei Kajita,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 123, No. 76, p. 259-263, 2023/06
  • A Study on Received Power Improvement in Indoor NLoS Region for 28-GHz Band Wireless System Using RIS, Jun Shirasaka,Seiichi Sampei,Takumi Takahashi, IEICE Tech. Rep., Vol. 122, No. 399, p. 167-172, 2023/03
  • Machine Learning and Deep Learning-Aided Wireless Physical Layer Techniques, Shinsuke Ibi,Takumi Takahashi,Daichi Shirase,Takanobu Doi,Kazushi Muraoka,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 357, p. 72-77, 2023/01
  • A Study on Evaluation of Non-Gaussianity in Two-Stage ICA-Aided Blind Signal Separation, Taisuke Nogami,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 357, p. 148-153, 2023/01
  • A Study on Wireless Autoencoder for Data-Aided Channel Estimation, Yoshinori Ichihashi,Shinsuke Ibi,Takumi Takahashi,Takanobu Doi,Kazushi Muraoka,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 357, p. 154-159, 2023/01
  • Deep Unfolding for Sparse Signal Recovery with Multiple Regularizers, Ryo Hayakawa,Takumi Takahashi, SIP Symposium 2022, 2022/12
  • A Study on Outer Loop Link Adaptation in Massive MIMO with Multi-user Detection via Generalized Approximate Message Passing, Takanobu Doi,Jun Shikida,Daichi Shirase,Kazushi Muraoka,Naoto Ishii,Takumi Takahashi,Shinsuke Ibi, IEICE Tech. Rep., Vol. 122, No. 311, p. 57-62, 2022/12
  • A Study on Likelihood Information Combining for Beam-Domain Local LMMSE in Coded Massive MIMO Detection, Takumi Yoshida,Takumi Takahashi,Koji Ishibashi,Shinsuke Ibi,Seiichi Sampei, SITA2022, 2022/12
  • Design of t-Distribution-based Denoiser for Discrete Vector Reconstruction, Daiki Wakumoto,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, SITA2022, 2022/12
  • Parametric Bilinear Inference via Bernoulli-Gaussian Belief Propagation, Jaewoo Lee,Takumi Takahashi,Kenta Ito,Shinsuke Ibi,Seiichi Sampei, SITA2022, 2022/12
  • A study on extended DLDC-aided blind signal detection in unified optical and wireless channels, Yoshikatsu Wakabayashi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, The Harris science review of Doshisha University, Vol. 63, No. 2, p. 113-122, 2022/07
  • A Study on Indoor Location Estimation Based on Complex-Domain Super MDS Method Using Time Series Information, Yuya Nishi,Takumi Takahashi,Hiroki Iimori,Giuseppe Abreu,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 122, No. 73, p. 182-187, 2022/06
  • A Study on LLR Synthesis Method for Beam-Domain Local LMMSE Detection in mmWave Large MIMO, Takumi Yoshida,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 122, No. 73, p. 162-167, 2022/06
  • A study on Joint Channel and Data Estimation via Parametric Bilinear Inference for OTFS Transmission, Kengo Furuta,Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 122, No. 73, p. 188-193, 2022/06
  • A Study on Expectation Propagation-based Iterative Detection for Overloaded MIMO in Coded Systems, Takuma Kobayashi,Takumi Takahashi,Kenta Ito,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 122, No. 73, p. 194-199, 2022/06
  • A Study on Irregular Sparse Superposition Code for Massive NOMA Detection, Shinya Oishi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 73, p. 200-205, 2022/06
  • A Study on Digital RF Aided Blind Self Interference Canceller for In-Band Full-Duplex, Nana Shimomura,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 73, p. 206-211, 2022/06
  • A Study on Support Vector Classification-Aided Regression with Ensemble Learning for GNSS Positioning, Shugo Maruyama,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 73, p. 212-217, 2022/06
  • A Study on Data-Driven Fine-Tuning for ICA-Aided Blind Signal Separation, Taisuke Nogami,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 73, p. 218-223, 2022/06
  • A Study on Self-Interference Canceller Based on Differential Coding in IBFD for Wireless IoT Communications, Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 122, No. 6, p. 24-29, 2022/04
  • A Study on Parametric Bilinear Inference via Gaussian Belief Propagation, Kenta Ito,Takumi Takahashi,Koji Igarashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 122, No. 6, p. 35-40, 2022/04
  • A Study on Received Power Improvement in NLoS Region for 28-GHz Band Indoor Wireless System Using Metal Reflector, Jun Shirasaka,Seiichi Sampei,Takumi Takahashi, IEICE Tech. Rep., Vol. 121, No. 391, p. 108-113, 2022/03
  • A Study on Detecting Object Location Information in Indoor Environment Using Fixed 3D LiDAR, Mizuki Tanaka,Seiichi Sampei,Takumi Takahashi, IEICE Tech. Rep., Vol. 121, No. 391, p. 218-222, 2022/03
  • A Study on Extended DLDC-Aided Joint Signal Processing in Unified Optical and Wireless Channels, Yoshikatsu Wakabayashi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 121, No. 329, p. 81-86, 2022/01
  • A Study on Deep Unfolding-Aided GNSS Positioning, Yuki Hayama,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 121, No. 329, p. 87-92, 2022/01
  • A Study on AoA Estimation-Aided Bayesian Receiver Design via Bilinear Inference for mmWave Large MIMO, Kenta Ito,Takumi Takahashi,Koji Igarashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 329, p. 167-172, 2022/01
  • A Study on Bayesian Receiver Design via Deep Unfolding-Aided Bilinear Inference for Correlated Large MIMO, Ryota Tamaki,Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 329, p. 207-212, 2022/01
  • A Study on Robust Referential AMP via Discrete Distribution Tracking for Correlated Large MIMO Signal Detection, Atsunori Shimamura,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 329, p. 213-218, 2022/01
  • Deep Learning-Aided Belief Propagation for Large Multiuser MIMO Detection, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 327, p. 289-294, 2022/01
  • Application of Soft-Decision FEC to Pre-Amplified Direct Detection with Four-Level Pulse Amplitude Modulation, Koji Igarashi,Takumi Takahashi, IEICE Tech. Rep., Vol. 121, No. 251, p. 9-14, 2021/11
  • A Study on Receive Beamforming for Multi-User Detection with Trainable Gaussian Belief Propagation, Takanobu Doi,Jun Shikida,Kazushi Muraoka,Naoto Ishii,Daichi Shirase,Takumi Takahashi,Shinsuke Ibi, IEICE Tech. Rep., Vol. 121, No. 234, p. 86-91, 2021/11
  • A study on secret key agreement scheme with mutual information-maximized vector quantization, Tomoyuki Higashide,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, The Harris science review of Doshisha University, Vol. 62, No. 3, p. 157-166, 2021/10
  • A study on large-scaled signal processing with multiple receivers for diversity receptions in GNSS positioning, Kousuke Kiyama,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, The Harris science review of Doshisha University, Vol. 62, No. 3, p. 167-174, 2021/10
  • A Study on Bayesian Receiver Design via Bilinear Inference for Scalable Cell-Free Massive MIMO, Takumi Takahashi,Hiroki Iimori,Kengo Ando,Koji Ishibashi,Shinsuke Ibi,Giuseppe Abreu, IEICE Tech. Rep., Vol. 121, No. 210, p. 57-62, 2021/10
  • Antenna Configuration and Robust Receiver Design for Scalable Cell-Free Massive MIMO with Capacity Limited Fronthaul, Kengo Ando,Hiroki Iimori,Giuseppe Abreu,Takumi Takahashi,Koji Ishibashi, IEICE Tech. Rep., Vol. 121, No. 153, p. 79-84, 2021/08
  • A Study on Negentropy-Aware Deep Unfolding for Coded MIMO Detection via Gaussian Belief Propagation, Daichi Shirase,Takumi Takahashi,Shinsuke Ibi,Kazushi Muraoka,Takanobu Doi,Naoto Ishii,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 103, p. 86-91, 2021/07
  • A Study on Low-Complexity Large MIMO Detection Based on Beam-Domain Local LMMSE Filters, Takumi Yoshida,Daichi Shirase,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 72, p. 127-132, 2021/06
  • A Study on Recurrent Neural Network Aided GNSS Positioning, Kohei Nishioka,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 121, No. 72, p. 145-150, 2021/06
  • A Study on Gaussian Belief Propagation Detector for High-Dimensional OTFS Modulation, Yuya Ito,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai,Noboru Osawa,Kosuke Yamazaki,Yoji Kishi, IEICE Tech. Rep., Vol. 121, No. 72, p. 151-156, 2021/06
  • A Study on Deep Unfolding-Aided Belief Propagation for Error Correction Decoding of CRC Code, Qilin Zhang,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Tech. Rep., Vol. 121, No. 72, p. 157-162, 2021/06
  • A Study on Phase-Noise-Aware LLR Calculation for Millimeter-wave MIMO Systems with High-Order Modulation, Daiki Wakumoto,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 72, p. 214-219, 2021/06
  • A Study on Suppression of Self-noise Propagation in Gaussian BP and GAMP for Correlated MIMO Detection, Ryota Tamaki,Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sanpei, IEICE Tech. Rep., Vol. 121, No. 72, p. 220-225, 2021/06
  • A Study on Deep Unfolding-Aided Quantized AMP for High-Dimensional Signal Detection, Atsunori Shimamura,Takumi Takahashi,Shinsuke Ibi,Seiichi Smapei, IEICE Tech. Rep., Vol. 121, No. 72, p. 226-231, 2021/06
  • A Study on Quantization Noise-Aware Gaussian Belief Propagation for Large MIMO Detection with Low-Resolution ADCs, Itsuki Watanabe,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep., Vol. 121, No. 72, p. 232-237, 2021/06
  • A Study on Trainable Gaussian Belief Propagation Using Deep Unfolding for Large NOMA Detection, R. Kume,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep., Vol. 120, No. 404, p. 240-245, 2021/03
  • A Study on Gaussian Belief Propagation with Whitening Filter for Faster-than-Nyquist Transmissions, N. Yanai,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep., Vol. 120, No. 404, p. 13-18, 2021/03
  • A Study on Conversion of NLoS conditions to LoS conditions using Sidelink in Smart Factory Environments, A, Kubota,S. Sampei,T. Takahashi, IEICE Tech. Rep., Vol. 120, No. 404, p. 88-93, 2021/01
  • A Study on Self-Interference Canceller Based In-Band Full-Duplex using Software Defined Radio in Pilot Contamination Environments, K. Tomita,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep., Vol. 120, No. 322, p. 164-169, 2021/01
  • A Study of Pilot Assignment Optimization Based on Statistical Beam Selection for Large Multi-User MIMO, Y. Ochi,T. Takahashi,S. Ibi,S. Sampei, IEICE Tech. Rep., Vol. 120, No. 322, p. 87-92, 2021/01
  • A Study on Secret Key Agreement Scheme by Vector Quantization of Correlated MIMO Channel Matrix, T. Higashide,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep., Vol. 120, No. 322, p. 34-39, 2021/01
  • A Study on Log Likelihood Ratio for Iterative Detection and Decoding of LoRa Modulation, T. Mihara,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep., Vol. 120, No. 322, p. 28-33, 2021/01
  • A Study on Large-Scaled Signal Processing for Diversity Receptions in GNSS Positioning, K. Kiyama,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep., Vol. 120, No. 322, p. 17-22, 2021/01
  • A Study on Higher-Order Large MIMO Detection via Concatenated Beam- and Antenna- Domain Layered BP, T. Takahashi,S. Ibi,S. Sampei, IEICE Tech. Rep., Vol. 120, No. 198, p. 79-84, 2020/12
  • A Study on Joint Channel and Data Estimation via Belief Propagation for Correlated Large MIMO Systems, K. Ito,T. Takahashi,S. Ibi,S. Sampei, IEICE Tech. Rep, Vol. 120, No. 249, p. 7-12, 2020/11
  • A Study on Self-Interference Canceller Based on Differential Coding in In-Band Full-Duplex Communication in Pilot Contamination Environments, K. Tomita,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep, Vol. 120, No. 130, p. 43-48, 2020/08
  • A Study on Deep Unfolding-aided Gaussian Belief Propagation for Correlated Large MIMO Signal Detection, D. Shirase,T. Takahashi,S. Ibi,K. Muraoka,N. Ishii,S. Sampei, IEICE Tech. Rep, Vol. 120, No. 89, p. 67-72, 2020/07
  • A Study on Gaussian Belief Propagation for Sparse Superposition Code in Massive NOMA Detection, R. Kume,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep, Vol. 120, No. 74, p. 133-138, 2020/06
  • A Study on Iterative Detection and Decoding for LoRa Modulation, T. Mihara,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep, Vol. 120, No. 74, p. 127-132, 2020/06
  • A Study on GNSS Positioning using Neural Network, Y. Hayama,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep, Vol. 120, No. 74, p. 121-126, 2020/06
  • A Study on Trainable Gaussian Belief Propagation Using Deep Unfolding for Large MIMO Signal Detection, D. Shirase,T. Takahashi,S. Ibi,K. Muraoka,N. Ishii,S. Sampei, IEICE Tech. Rep, Vol. 120, No. 74, p. 109-114, 2020/06
  • A Study on Bilinear Gaussian Belief Propagation for Iterative Channel and Data Estimation in Large MIMO Systems, K. Ito,T. Takahashi,S. Ibi,S. Sampei, IEICE Tech. Rep, Vol. 120, No. 74, p. 103-108, 2020/06
  • A Study on DLDC-Aided Joint Signal Processing for Unified Optical and Wireless Channels, Y. Wakabayashi,S. Ibi,T. Takahashi,H. Iwai, IEICE Tech. Rep, Vol. 120, No. 74, p. 73-77, 2020/06
  • Effect of Interference Cancellation Considering Processing Delay for URLLC Repetition Transmission, Osamu Nakamura,Yasuhiro Hamaguchi,Takumi Takahashi,Seiichi Sampei, IEICE Tech. Rep, Vol. 119, No. 448, p. 359-364, 2020/03
  • LUT-based Approximate Message Passing Using Information Bottleneck for Massive MIMO Detection, Liwen Wang,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 119, No. 448, p. 81-86, 2020/03
  • A Study on Indoor Localization for a Multiuser Environment based on Unified Fingerprint of Wi-Fi and Bluetooth Low Energy using Machine Learning, Shunsuke Tsuchida,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 119, No. 448, p. 177-182, 2020/03
  • A Study on CNN based Indoor Localization with BLE with Compass Sensor, Kodai Tasaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 119, No. 378, p. 117-122, 2020/01
  • A Study on Subspace Marginalized Belief Propagation for Overloaded MIMO Detection in LOS Channels, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, SITA2019, 2019/11
  • A Study on Concatenated Beam- and Antenna- domain Layered BP for Large MIMO Detection, T. Takahashi,A. Tölli,S. Ibi,S. Sampei, IEICE Tech. Rep., Vol. 119, No. 108, p. 25-30, 2019/07
  • A Study on Indoor Localization Based on Machine Learning with BLE with Compass Sensor, Kodai Tasaki, Takumi Takahashi, Shinsuke Ibi, Seiich Sampei, IEICE Tech. Rep, Vol. 119, No. 108, p. 115-120, 2019/07
  • Channel Estimation Using Long-term Channel Statistics for BP-based Large MIMO Detection, Takumi Takahashi,Antti Tolli,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 119, No. 8, p. 67-72, 2019/04
  • A Study on Criterion of Adaptively Scaled Belief for GaBP in Massive SCMA, Keisuke Inagaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 118, No. 474, p. 19-24, 2019/03
  • A Study on Layered Belief Propagation for Large MIMO Detection based on Statistical Beams, Takumi Takahashi,Antti Tolli,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 118, No. 474, p. 25-30, 2019/03
  • A Study on Replica Generation Using Multi-layer LUT based on Information Bottleneck for MF-GaBP in Massive MIMO Detection, Liwen Wang,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 118, No. 435, p. 7-12, 2019/01
  • A Study on GaBP IDD Structure for Massive SCMA, Keisuke Inagaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, SITA2018, 2018/12
  • Gaussian Belief Propagation, Shinsuke Ibi,Takumi Takahashi, SITA2018, 2018/12
  • A Study on Iterative Decoding Based on Belief Propagation for CRC Concatenated Polar Code, Satoshi Tajima,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 118, No. 101, p. 79-84, 2018/06
  • A Study on Iterative Channel Estimation with Non-Orthogonal Pilot Sequence in Large MIMO Detection, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 118, No. 12, p. 31-36, 2018/04
  • A Study on Adaptively Scaled Belief in Gaussian BP Detection for Higher-Order Higher-Dimensional MIMO Systems, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 117, No. 456, p. 271-276, 2018/03
  • A Study on Criterion of Adaptively Scaled Belief for Large MIMO Detection Based on Belief Propagation, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Vol. 117, No. 396, p. 25-30, 2018/01
  • Design of Adaptively Scaled Belief for Gaussian BP in Multi-Dimensional Signal Detection for Higher-Order Modulation, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, SITA2017, 2017/11
  • A Study on Belief Propagation of Multi-Dimensional Signal Detection for Higher-Order Modulation, Shinsuke Ibi,Takumi Takahashi,Seiichi Sampei, IEICE Tech. Rep, Vol. 117, No. 175, p. 61-66, 2017/08
  • Study on Random codebook Design and its constraint for Massive SCMA Detection, Keisuke Inagaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 117, No. 103, p. 185-190, 2017/06
  • A Study on Criterion of Adaptively Scaled Belief for PDA in Overloaded MIMO Channels, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Tech. Rep, Vol. 117, No. 11, p. 5-10, 2017/04
  • Design of Criterion for Adaptively Scaled Belief in Iterative MIMO Detection, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, SITA2016, 2016/12
  • A Study on Normalization of A-priori Information for Belief Propagation in Correlated Large MIMO Channels, Takumi Takahashi,Shinsuke Ibi,Takeo Ohgane,Seiichi Sampei, IEICE Tech. Rep, Vol. 116, No. 110, p. 53-58, 2016/06

Awards

  • Signal Processing Special Achievement Award, Takumi Takahashi, IEICE Technical Committee on Signal Processing, 2023/11
  • Communications Society Activities Achievement Award, Takumi Takahashi, IEICE Communication Society, 2023/09
  • Young Professionals Award, Takumi Takahashi, IEEE Kansai Section, 2023/03
  • Communications Society Activities Achievement Award, Takumi Takahashi, IEICE Communication Society, 2021/09
  • IEICE Communications Society Best Paper Award, Takumi Takahashi,Shinsuke Ibi,Sampei Seiichi, Communication Society, 2020/05
  • Young Researcher's Award, Takumi Takahashi, IEICE, 2020/03
  • 学生研究奨励賞, Takumi Takahashi, IEEE Kansai Section, 2020/02
  • Young Author Best Paper Award, Takumi Takahashi, IEICE, Symposium on Information Theory and its Applications Subsociety, 2017/12
  • Radio Communication Systems Active Research Award, Takumi Takahashi, IEICE Technical Committee, 2017/05
  • Young Researcher’s Encouragement Award, Takumi Takahashi, IEEE VTS Japan chapter, 2016/09

Presentations

  • A Study on Low-Complexity OTFS Signal Detection Based on Local LMMSE Output Combining, Takumi Yoshida,Takumi Takahashi,Koji Ishibashi, IEICE Gen. Conf., 2024/03
  • A Study on Low-Complexity Detection via Gaussian Belief Propagation for Diversity Achieving-QSM, Keigo Masuoka,Takumi Takahashi,Shinsuke Ibi, IEICE Gen. Conf., 2024/03
  • A Study on Low-Complexity Time-Varying mmWave MIMO Detection via Vector Approximate Message Passing, Tomoharu Furudoi,Takumi Takahashi,Shinsuke Ibi, IEICE Gen. Conf., 2024/03
  • A Study on Data-Driven Tuning for Weighted Least Square in Indoor Positioning Based on BLE Angle of Arrival, Ginji Ohashi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2024/03
  • A Study on GNSS Positioning with LTE Signal as Auxiliary Information via LSTM, Kotaro Oda,Yuki Higashino,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2024/03
  • A Study on Successive Approximation Method in Indoor Position Estimation Based on BLE Angle of Arrival, Tomohiro Toyoda,Ginji Ohashi,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2024/03
  • A Study on the Design of Wireless AutoEncoder for Coded MIMO Communications, Yuto Imahori,Arata Kameda,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2024/03
  • A Study on Deep Unfolding for Turbo Equalization-based MIMO Signal Detection, Haruki Sekiguchi,Rei Kajita,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2024/03
  • Tutorial Session "Frontiers of Probabilistic Inference for Communications", Takumi Takahashi,Hiroki Iimori,Koya Sato, The 38th SIP Symposium, 2023/11/06
  • Multi-user Detection via Non-iterative MF-PIC for Uplink Multi-user Massive MIMO, Takanobu Doi,Daichi Shirase,Kazushi Muraoka,Naoto Ishii,Takumi Takahashi,Shinsuke Ibi, IEICE Soc. Conf., 2023/09
  • A Study on Sparse Superposition Code in OTFS transmissions, Shinya Oishi, Shinsuke Ibi, Takumi Takahashi, Hisato Iwai, IEICE Gen. Conf., 2023/03
  • A Study on Deep Unfolding for PDA-Based Signal Detector in FTN Transmissions, Rei Kajita, Qilin Zhang, Shinsuke Ibi, Takumi Takahashi, Hisato Iwai, IEICE Gen. Conf., 2023/03
  • A Study on Neural Network-Aided Indoor Positioning based on BLE Angle of Arrival Information, Ginji Ohashi,Kousei Ono,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2023/03
  • A Study on Two-Stage Blind Self-Interference Canceller for IBFD in Frequency-Selective Fading Channels, Koichi Nishikawa, Nana Shimomura, Shinsuke Ibi Takumi Takahashi, Hisato Iwai, IEICE Gen. Conf., 2023/03
  • Multi-Dimentional Signal Processing Based on Message Passing Algorithm, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Kansai-section Joint Convention of Institues of Electorical Engineering, 2022/11
  • System Level Evaluation of Generalized Approximate Massage Passing in Multi-User Massive MIMO, Takanobu Doi,Jun Shikida,Kazushi Muraoka,Naoto Ishii,Takumi Takahashi,Shinsuke Ibi, IEICE Soc. Conf., 2022/09
  • A Study on Deep Unfolding-Aided Gaussian Belief Propagation for Correlated MIMO Detection with Low-Resolution ADCs, Yuka Tamura,Atsunori Shimamura,Itsuki Watanabe,Daichi Shirase,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2022/03
  • A Study on Spreading Matrix of Sparse Superposition Code for Massive NOMA Detection, Shinya Oishi,Ryuichi Kume,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2022/03
  • A Study on Self-Interference Canceller Based on Digital RF for In-Band Full-Duplex, Nana Shimomura,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2022/03
  • A Study on Deep Unfolding-Aided Independent Component Analysis for MIMO Blind Signal Separation, Taisuke Nogami,Qilin Zhang,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2022/03
  • A Study on Ensemble Learning-Aided GNSS Positioning, Shugo Maruyama,Yuki Hayama,Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, IEICE Gen. Conf., 2022/03
  • Fundamentals of Deep Unfolding-aided Belief Propagation, Shinsuke Ibi,Takumi Takahashi,Hisato Iwai, Kansai-section Joint Convention of Institues of Electorical Engineering, 2021/12
  • Trainable Gaussian Belief Propagation Initialized by MMSE Filters, T. Doi,J. Shikida,K. Muraoka,N. Ishii,D. Shirase,T. Takahashi,S. Ibi,S. Sampei, IEICE Soc. Conf., 2021/09
  • DMRS Generation Schemes for Frequency-Domain Spectrum Shaping with Spectrum Extension, Osamu Nakamura,Yasuhiro Hamaguchi,Seiichi Sampei,Takumi Takahashi, IEICE Soc. Conf., 2021/09
  • Bilinear Inference for Grant-Free Access in Cell-Free MIMO Systems, H. Iimori,T.Takahashi,K. Ishibashi,G. Abreu, IEICE Gen. Conf., 2021/03
  • A Study on Deep Unfolding-aided Error Correction Decoding for CRC Code, Q. Zhang,S. Ibi,T. Takahashi,H. Iwai, IEICE Gen. Conf., 2021/03
  • A Study on Approximated LLR in Presence of Phase Noise for MIMO Systems with High-Order Modulation, D. Wakumoto,T. Takahashi,S. Ibi,S. Sampei, IEICE Gen. Conf., 2021/03
  • Evaluation of Trainable Gaussian Belief Propagation Using 3GPP CDL Channel Model, T. Doi,J. Shikida,K. Muraoka,N. Ishii,D. Shirase,T. Takahashi,S. Ibi,S. Sampei, IEICE Gen. Conf., 2021/03
  • A study on Low-complexity mmWave Massive MIMO Detection Based on Beam-domain Local LMMSE filter, T. Yoshida,D. Shirase,T.Takahashi,S. Ibi,S. Sampei, IEICE Gen. Conf., 2021/03
  • A Study on Bussgang decomposition-based GaBP for Large MIMO Detection with Low-precision ADCs, I. Watanabe,T. Takahashi,S. Ibi,S. Sampei, IEICE Gen. Conf., 2021/03
  • A Study on Deep Unfolding-Aided Quantized Look-up Table-based AMP for Massive MIMO Detection, A. Shimamura,T. Takahashi,S. Ibi,S. Sampei, IEICE Gen. Conf., 2021/03
  • A Study on Improved Generalized Approximate Message Passing for Correlated Large MIMO Detection, R. Tamaki,K. Ito,T. Takahashi,S. Ibi,S. Sampei, IEICE Gen. Conf., 2021/03
  • A Study on Coverage Enhancement for 28 GHz Band in Indoor Environment Using Reflectors, J. Shirasaka,S. Sampei,T. Takahashi, IEICE Gen. Conf., 2021/03
  • A Study on the Creation of 3D Map in Indoor Environment Using 2D LiDAR, M. Tanaka,S,Sampei,T. Takahashi, IEICE Gen. Conf., 2021/03
  • A Study on Beam Allocation to Suppress Interference in High Dense Environment, T. Kaino,S.Sampei,T. Takahashi, IEICE Gen. Conf., 2021/03
  • Fundamentals of Multi-Dimensional Signal Detection of Expectation Propagation, S. Ibi,T. Takahashi,H. Iwai, IEICE Gen. Conf., 2021/03
  • A Study on Iterative Joint Channel and Data Estimation in Correlated Large MIMO Channels, K. Ito,T. Takahashi,S. Ibi,S. Sampei, IEICE Soc. Conf., 2020/09
  • A Study on Reference Signal Reduction for DMRS Sharing, O. Nakamura,Y. Hamaguchi,T. Takahashi,S. Sampei, IEICE Soc. Conf., 2020/09
  • A Study on Mutual Message Initialization in BiGAMP for Large MIMO Detection with Non-orthogonal Pilots, Kenta Ito,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2020/03
  • A Study on Path Planning for Autonomous Robot using a Spatiotemporal Graph in Indoor Space under Cellular Environment, Koki Imanichi,Seiichi Sampei,Takumi Takahashi, IEICE Gen. Conf., 2020/03
  • A Study on Prevention of Radio Leakage and Improvement of Area Coverage in Smart Factory, Akihiro Kubota,Seiichi Sampei,Takumi Takahashi, IEICE Gen. Conf., 2020/03
  • Orthogonal Pilot Assignment Based on Optimal Beam Selection for Large-scale Multi-user MIMO, Yuichi Ochi,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2020/03
  • Belief Propagation for Large MIMO Signal Detection, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, Kansai-section Joint Convention of Institues of Electorical Engineering, 2019/11
  • ransmission Performance of URLLC Using Interference Cancellation Considering Processing Delay, Osamu Nakamura,Yasuhiro Hamaguchi,Takumi Takahashi,Seiichi Sampei, IEICE Soc. Conf., 2019/09
  • A Study on Subspace Marginalized Belief Propagation for Overloaded MIMO in LOS Channels, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Soc. Conf., 2019/09
  • Uplink Multi-User Massive MIMO using Gaussian BP in Highly Correlated Channels, Tatsuki Okuyama,Kazushi Muraoka,Satoshi Suyama,Jun Mashino,Yukihiko Okumura,Shinsuke. Ibi,Takumi Takahashi,Seiichi Sampei, IEICE Soc. Conf., 2019/09
  • A Study on EXIT Chart-Aided Design of GaBP IDD Structure for Massive SCMA, Keisuke Inagaki,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Soc. Conf., 2018/09
  • A Study on Iterative Channel Estimation for Non-Orthogonal Pilot Sequence in Large MIMO Detection, Shoma Ito,takumi takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2018/03
  • A Study on CRC-Aided Iterative Decoding Based on Belief Propagation for Polar Code, Satoshi Tajima,Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2018/03
  • A Study on Criterion of Adaptively Scaled Belief for PDA in Correlated MIMO Channels, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2017/03
  • A Study on Criterion of Codebook Selection for Massive SCMA, Keisuke Inagaki,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2017/03
  • A Study on Normalization of A-priori Information in Belief Propagation for Large MIMO Detector, Takumi Takahashi,Shinsuke Ibi,Seiichi Sampei, IEICE Gen. Conf., 2016/03

Academic Activities

  • TPC member, IEEE VTC2022-Spring Recent Results and Workshops, 2022 - 2022
  • TPC member, IEEE Globecom2021 WC, 2021/10 - 2022/01
  • TPC member, IEEE CCNC 2022, 2021/07 - 2021/12
  • Local Arrangement Chair, IEEE VTS APWCS2021, 2021 - 2021
  • TPC member, IEEE APWCS 2021, 2021 - 2021
  • TPC member, IEEE VTC2021-Fall: Virtual, 2021 - 2021
  • TPC member, IEEE VTC2020-Spring Recent Results and Workshops, 2020 - 2020
  • TPC member, IEEE VTC2019-Fall Recent Results, Symposia and Workshops, 2019 - 2019

Committee Memberships

  • Technical Committee on Information Theory (IT), IEICE, Expert member, 2022/04 - Present
  • Technical Committee on Radio Communication Systems (RCS), IEICE, Expert member, 2019/04 - Present