Published papers
Adachi, Koichi
41-60 items (total 141)
Q-Learning Aided Resource Allocation and Environment Recognition in LoRaWAN With CSMA/CA
- Author
- Naoki Aihara, Koichi Adachi, Osamu Takyu, Mai Ohta, and Takeo Fujii
- Publication Title
- Magazine name IEEE Access Publisher IEEE Start Page 152126 - End Page 152137 (Publication Date）2019/10）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Transmit Antenna Selection Using Gated Recurrent Units for UAV-to-LEO Satellite Communications
- Author
- Jaehong Kim, Seok-Jin Hong, Koichi Adachi, Jian Zhao, Eui-Rim Jeong, Jingon Joung
- Publication Title
- Magazine name IEEE Transactions on Vehicular Technology Publisher IEEE Start Page 1 - End Page 6 (Publication Date）2025/05）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Tackling Hidden Node Problem Utilizing Traffic Periodicity and Downlink Carrier Sense in LPWAN
- Author
- Aoto Kaburaki, Koichi Adachi, Osamu Takyu
- Publication Title
- Magazine name IEEE Internet of Things Journal Volume 12(Issue 6) Start Page 6536 - End Page 6547 (Publication Date）2024/11）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Space-Frequency-Interpolated Radio Map
- Author
- K. Sato, K. Suto, K. Inage, K. Adachi, T. Fujii
- Publication Title
- Magazine name IEEE Trans. Veh. Technol. Publisher IEEE Volume 70(Issue 1) Start Page 714 - End Page 725 (Publication Date）2021/01）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Channel Phase Nonreciprocity Compensation for Space-Frequency Line Coded OFDM Systems
- Author
- Han-Gyeol Lee, Jihoon Choi, Juyeop Kim, Koichi Adachi, Yue Xiao, Jingon Joung
- Publication Title
- Magazine name IEEE Access (Publication Date）2025/06）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Investigation of a Method for Identifying Sensor Information Using a Constrained Database Update Algorithm in Physical Wireless Parameter Conversion Sensor Networks
- Author
- Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
- Publication Title
- Magazine name IEEE Access Publisher Institute of Electrical and Electronics Engineers (IEEE) Start Page 91216 - End Page 91231 (Publication Date）2026/06）
- Role
- Last Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Distributed Interference Avoidance in LoRaWAN via Spectral Features and Decision Tree
- Author
- Aoto Kaburaki, Koichi Adachi
- Publication Title
- Magazine name IEEE Wireless Commun. Lett. Publisher Institute of Electrical and Electronics Engineers (IEEE) Start Page 3846 - End Page 3850 (Publication Date）2026/06）
- Role
- Last Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Monitoring Resource Activity-Based Retransmission Control Process in Multi-Hop LoRaWAN
- Author
- Kenji Akasu, Koki Aoyama, Takahiro Saraya, Koichi Adachi, and Jingon Joung
- Publication Title
- Magazine name IEEE Internet of Things Journal Publisher Institute of Electrical and Electronics Engineers (IEEE) Volume 13(Issue 16) Start Page 35490 - End Page 35504 (Publication Date）2026/05）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Differential STFLC with Resource Grid Mapping for Robust IoT Connectivity in Time-Varying Frequency-Selective Channels
- Author
- Taehee Choi, Han-Gyeol Lee, Koichi Adachi, Seongwook Lee, and Jingon Joung
- Publication Title
- Magazine name IEEE Internet of Things Journal Publisher Institute of Electrical and Electronics Engineers (IEEE) Volume 13(Issue 10) Start Page 22329 - End Page 22344 (Publication Date）2026/02）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
DOA-Based Hybrid Reconfigurable Intelligent Surface Phase-Shift Design for Achievable Rate Enhancement
- Author
- Taehee Choi, Jaehong Ki, Han-Gyeol Lee, Koichi Adachi, and Jingon Joung
- Publication Title
- Magazine name IEEE Transactions on Vehicular Technology Publisher Institute of Electrical and Electronics Engineers (IEEE) Volume 75(Issue 7) Start Page 15148 - End Page 15153 (Publication Date）2026/01）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Cooperative ARQ using distributed relay selection and inter-relay opportunistic listening
- Author
- Nandarlynn, Osamu Takyu, Koichi Adachi, Masao Nakagawa, and Tomoaki Ohtsuki
- Publication Title
- Magazine name IEEE 21st Int. Symp. on Personal, Indoor and Mobile Radio Commun. Workshop Start Page 1 - End Page 5 (Publication Date）2010/09）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Collection of Correlated Information from Superimposed Multiple Chirp Signals
- Author
- Koki Aoyama, Koichi Adachi
- Publication Title
- Magazine name 2024 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC) Start Page 1 - End Page 5 (Publication Date）2024/12）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
LBT-based Resource Allocation Methods Utilizing Periodicity of Traffic in LPWAN
- Author
- Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, and Takeo Fujii
- Publication Title
- Magazine name Int. Conf. on Computing, Netw. and Commun. (ICNC 2024) Start Page 1 - End Page 5 (Publication Date）2024/02）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Spectrum Database Aided Prior Vacant Frequency Band Detection for Spectrum Sharing
- Author
- Miho Musashi and Koichi Adachi
- Publication Title
- Magazine name The 2nd Int. Conf. on Artificial Intelligence and Information and Commun (ICAIIC 2020) Start Page 1 - End Page 5 (Publication Date）2020/02）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Autonomous Decentralized Transmission Timing Control in Wireless Sensor Network
- Author
- Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, and Takeo Fujii
- Publication Title
- Magazine name The 12th Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2020) Start Page 1 - End Page 5 (Publication Date）2020/12）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Chirp Index Space Partitioning Based Multiple Access Technique
- Author
- Hinata Sakamoto, Koichi Adachi
- Publication Title
- Magazine name The 15th Int. Conf. on Ubiquitous and Future Networks (ICUFN 2024), Start Page 1 - End Page 5 (Publication Date）2024/07）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Indoor Radio Environment Map Construction Using Node Position Estimation for Smart Factories
- Author
- Hayato Mukasa, Kohei Yuzawa, Takeo Fujii, Koichi Adachi
- Publication Title
- Magazine name IEEE Int. Symp. on Personal, Indoor and Mobile Radio Commun. 3rd Workshop on Integrated, Intelligent and Ubiquitous Connectivity for 6G Start Page 1 - End Page 5 (Publication Date）2024/09）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Radio Resource Allocation Scheme Considering Future Channel Conditions Based on Radio Environment Map
- Author
- Kotaro Yoshikawa, Takumi Tanagi, Koichi Adachi
- Publication Title
- Magazine name The 20th IEEE Asia Pacific Wireless Commun. Symp. (APWCS 2024) Start Page 1 - End Page 5 (Publication Date）2024/08）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Received Signal Aided Implicit Node Clustering in LPWAN
- Author
- Takahiro Saraya, Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Takeo Fujii, Mai Ohta
- Publication Title
- Magazine name IEEE Veh. Technol. Conf. (VTC’24)-spring Start Page 1 - End Page 5 (Publication Date）2024/06）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Resource Management for Wireless Power Transfer and Wireless Information Transfer in Industrial IoT
- Author
- Daichi Watabe, Kotaro Yoshikawa, Koichi Adachi
- Publication Title
- Magazine name The 5th Int. Workshop on Smart Radio for IoT Era (SRIoT 2024), The 15th Int. Conf. Ubiquitous and Future Netw. (ICUFN 2024) Start Page 1 - End Page 5 (Publication Date）2024/07）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With