| 2023 | VTC | Feature Extraction Using Hough Transform in Radio Propagation Estimation. | Rento Hagiwara, Koichi Ichige, Tatsuya Nagao, Takahiro Hayashi |
| 2023 | VTC | Low-Cost Path Loss Estimation Using Correlation Graph CNN with Novel Feature Parameters. | Keita Imaizumi, Koichi Ichige, Tatsuya Nagao, Takahiro Hayashi |
| 2022 | VTC | Learning-Based Path Loss Estimation Using Multiple Spatial Data and System Parameters. | Kazuya Inoue, Keita Imaizumi, Koichi Ichige, Tatsuya Nagao, Takahiro Hayashi |
| 2021 | PIMRC | On The Building Map for Radio Propagation Prediction Using Machine Learning. | Kazuya Inoue, Koichi Ichige, Tatsuya Nagao, Takahiro Hayashi |
| 2019 | ISCAS | Optimum 2D Sparse Array and its Interpolation via Nuclear Norm Minimization. | Shogo Nakamura, Sho Iwazaki, Koichi Ichige |
| 2019 | ISCAS | Super Nested Sparse Circular Array for High Resolution DOA Estimation. | Steven Wandale, Thomas Basikolo, Koichi Ichige |
| 2018 | ISCAS | Fast Intra Mode Decision Method Based on Outliers of DCT Coefficients and Neighboring Block Information for H.265/HEVC. | Jun Ogata, Koichi Ichige |
| 2016 | ISCAS | Real-time moving object tracking using phase-difference compensation and nonuniform pulse transmission. | Koichi Ichige, Nobuya Arakawa, Osamu Shibata |
| 2008 | ISCAS | High resolution 2-D DOA estimation using second-order partial-differential of MUSIC spectrum. | Koichi Ichige, Yoshihisa Ishikawa, Hiroyuki Arai |
| 2006 | ICASSP | An Explicit High-Resolution DOA Estimation Formula for Two Wave Sources. | Koichi Ichige, Noriaki Takabe, Hiroyuki Arai |
| 2006 | VTC | Direction of Arrival Detection System for Radio Surveillance: Frequency Spectrum Analysis of CDMA and Jamming Waves. | Koichi Ichige, Mitsuharu Imai, Hiroyuki Arai, Masayuki Nakano, Masafumi Hirono |
| 2003 | ICASSP | Interpolation of signals by generalized piecewise-linear multiple generators. | Koichi Ichige, Thierry Blu, Michael Unser |
| 2002 | PIMRC | Design of Jacobi EVD processor based on CORDIC for DOA estimation with MUSIC algorithm. | Minseok Kim, Koichi Ichige, Hiroyuki Arai |
| 2002 | PIMRC | A hardware implementation of LS-CMA adaptive array for high-speed mobile communication. | Atsushi Suzuki, Shintaro Muramatsu, Koichi Ichige, Hiroyuki Arai |