Crowdsourcing-Assisted Radio Environment Maps for V2V Communication Systems. - Keita Katagiri; Koya Sato; Takeo Fujii (VTC Fall, 2017)

Low Storage, but Highly Accurate Measurement-Based Spectrum Database via Mesh Clustering. - Rei Hasegawa; Keita Katagiri; Koya Sato; Takeo Fujii (IEICE Trans. Commun., 2018)

Crowdsourcing-Assisted Radio Environment Database for V2V Communication. - Keita Katagiri; Koya Sato; Takeo Fujii (Sensors, 2018)

Demo: Highly Accurate Prediction of Radio Environment for V2V Communications. - Keita Katagiri; Takeo Fujii (DySPAN, 2019)

Radio Environment Map Updating Procedure Based on Hypothesis Testing. - Keita Katagiri; Takeo Fujii (DySPAN, 2019)

Highly Accurate Prediction of Radio Propagation Using Model Classifier. - Keita Katagiri; Keita Onose; Koya Sato; Kei Inage; Takeo Fujii (VTC Spring, 2019)

High Density Spectrum Sharing Method among Micro Operators considering Spectrum Database. - Hirofumi Nakajo; Yuya Aoki; Keita Katagiri; Takeo Fujii (WCNC Workshops, 2019)

Measurement-based Spectrum Database for Wireless Distributed Networks Using Shadowing Classifier. - Keita Katagiri; Takeo Fujii (ICAIIC, 2020)

Experimental Verification of Shadowing Classification for Radio Map. - Keita Katagiri; Koya Sato; Kei Inage; Takeo Fujii (VTC Fall, 2020)

Radio Environment Map Updating Procedure Considering Change of Surrounding Environment. - Keita Katagiri; Takeo Fujii (WCNC Workshops, 2020)

Low Storage Radio Map Using Statistical Inference. - Keita Katagiri; Takeo Fujii (DySPAN, 2021)

Mesh-Clustering-Based Radio Maps Construction for Autonomous Distributed Networks. - Keita Katagiri; Takeo Fujii (ICUFN, 2021)

Channel Allocation for LoRaWanConsidering Intra-System and Inter-System Interferences. - Shinichiro Kakuda; Yudai Yamazaki; Keita Katagiri; Takeo Fujii; Osamu Takyu; Mai Ohta; Koichi Adachi (VTC Fall, 2021)

Clustering for Signal Power Distribution Toward Low Storage Crowdsourced Spectrum Database. - Yoji Uesugi; Keita Katagiri; Koya Sato; Kei Inage; Takeo Fujii (IEICE Trans. Commun., 2021)

Dynamic Radio Map Using Statistical Hypothesis Testing. - Keita Katagiri; Koya Sato; Kei Inage; Takeo Fujii (IEEE Trans. Cogn. Commun. Netw., 2021)

Classification and Discretization of Shadowing Toward Low Storage Radio Map. - Keita Katagiri; Takeo Fujii (ICAIIC, 2022)

Partitioned Path Loss Models Based on Coefficient of Determination. - Keita Katagiri; Takeo Fujii (ICOIN, 2022)

Radio Propagation Extrapolation by Using Multiple Separated Propagation Paths Estimated by Radio Map. - Shougo Matsuo; Sunao Miyamoto; Keita Katagiri; Takeo Fujii (ICOIN, 2022)

Radio Map Extrapolation Using Compensated Empirical CDF Under Interference-Limited Observations. - Keita Katagiri; Koya Sato; Kei Inage; Takeo Fujii (IEEE Access, 2022)