Published papers
Adachi, Koichi
21-40 items (total 141)
Achievable Rate Enhancement based on Multi-packet Indexing in Packet-Level Index Modulation
- Author
- Riku Yamabe, Mikihiko Nishiara, Osamu Takyu, Koichi Adachi
- Publication Title
- Magazine name IEEE Access Publisher IEEE Start Page 154938 - End Page 154946 (Publication Date）2021/11）
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- Last Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Adaptive Resource Allocation Utilizing Periodic Traffic and Clock Drift in LPWAN
- Author
- Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
- Publication Title
- Magazine name IEEE Transactions on Wireless Communications Publisher IEEE Volume 23(Issue 4) Start Page 3795 - End Page 3807 (Publication Date）2024/04）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
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- Research paper (scientific journal)
- Peer-review Status
- With
- ISSN
- 1536-1276
Aiming in Harsh Environments: A New Framework for Flexible and Adaptive Resource Management
- Author
- Jiaqi Zou, Rui Liu, Chenwei Wang, Yuanhao Cui, Zixuan Zou, Songlin Sun, Koichi Adachi
- Publication Title
- Magazine name IEEE Network Publisher IEEE Volume 36(Issue 4) Start Page 70 - End Page 77 (Publication Date）2022/10）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
An Environment-Aware Adaptive Data-Gathering Method for Packet-Level Index Modulation in LPWA
- Author
- Osamu Takyu, Keita Takeda, Ryuji Miyamoto, Koichi Adachi, Mai Ohta, Takeo Fujii
- Publication Title
- Magazine name Sensors Publisher MDPI AG Volume 24(Issue 8) Start Page 2514 - End Page 2514 (Publication Date）2024/04）
- Authorship Category
- Joint Work
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- Research paper (scientific journal)
- Peer-review Status
- With
Array Antenna Equipped UAV-BS for Efficient Low Power WSN and Its Theoretical Analysis
- Author
- Hendrik Lumbantoruan, Koichi Adachi
- Publication Title
- Magazine name IET Commun. Publisher IET Volume 15(Issue 16) Start Page 1 - End Page 14 (Publication Date）2021/04）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Autonomous Decentralized Traffic Control Using Q-learning in LPWAN
- Author
- A. Kaburaki, K. Adachi, O. Takyu, M. Ohta, T. Fujii
- Publication Title
- Magazine name IEEE Access Publisher IEEE Start Page 93651 - End Page 93661 (Publication Date）2021/06）
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- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-Level Index Modulation
- Author
- Ryuji MIYAMOTO, Osamu TAKYU, Hiroshi FUJIWARA, Koichi ADACHI, Mai OHTA, Takeo FUJII
- Publication Title
- Magazine name IEICE Transactions on Communications Publisher IEICE Volume E106.B(Issue 12) Start Page 1337 - End Page 1349 (Publication Date）2023/12）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
- ISSN
- 0916-8516
Differential Space-Time Line Codes
- Author
- Jingon Joung, Koichi Adachi, Chau Yuen
- Publication Title
- Magazine name IEEE Transactions on Vehicular Technology Publisher Institute of Electrical and Electronics Engineers (IEEE) Volume 73(Issue 10) Start Page 15837 - End Page 15842 (Publication Date）2024/10）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
- ISSN
- 0018-9545
Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa
- Author
- Osamu Takyu, Gaku Kobayashi, Koichi Adachi, Mai Ohta, Takeo Fujii
- Publication Title
- Magazine name Sensors Publisher MDPI AG Volume 22(Issue 11) Start Page 4140 (Publication Date）2022/05）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Flexible Index Mapping Scheme for Packet-Level Index Modulation
- Author
- Kosuke Suzuki, Koichi Adachi, Mai Ohta, Osamu Takyu, Takeo Fujii
- Publication Title
- Magazine name IEEE Wireless Communications Letters Publisher IEEE Volume 11(Issue 4) Start Page 703 - End Page 706 (Publication Date）2022/04）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
- ISSN
- 2162-2337
Image-Driven Spatial Interpolation with Deep Learning for Radio Map Construction,
- Author
- K. Suto, S. Bannai, K. Sato, K. Inage, K. Adachi, T. Fujii
- Publication Title
- Magazine name IEEE Wireless Commun. Lett. Publisher IEEE Volume 10(Issue 6) Start Page 1222 - End Page 1226 (Publication Date）2021/06）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Microwave Power Transmission Using a Signal-to-Leakage-and-Noise Ratio to Protect Wireless Communication Devices
- Author
- Shun Shibuya, Koichi Adachi, Hiroyuki Morikawa, Yoshiaki Narusue
- Publication Title
- Magazine name IEICE Communications Express Publisher IEICE Volume 13(Issue 2) Start Page 39 - End Page 42 (Publication Date）2024/02）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Packet-Level Index Modulation Based on Channel Activity Detection
- Author
- Kosuke Suzuki, Koichi Adachi, Mai Ohta, Osamu Takyu, Takeo Fujii
- Publication Title
- Magazine name IEEE Transactions on Wireless Communications Publisher IEEE Volume 23(Issue 4) Start Page 2812 - End Page 2823 (Publication Date）2024/04）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
- ISSN
- 1536-1276
Packet-Level Index Modulation for LoRaWAN
- Author
- K. Adachi, K. Tsurumi, A. Kaburaki, O. Takyu, M. Ohta, T. Fujii
- Publication Title
- Magazine name IEEE Access Publisher IEEE Start Page 12601 - End Page 12610 (Publication Date）2021/01）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Position Estimation of Radio Source Based on Fingerprinting With Physical Wireless Parameter Conversion Sensor Networks
- Author
- Masafumi Oda, Osamu Takyu, Mai Ohta, Takeo Fujii, and Koichi Adachi
- Publication Title
- Magazine name IEEE Access Publisher IEEE Start Page 12843 - End Page 12857 (Publication Date）2023/02）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Simple Clock Drift Estimation & Compensation for Packet-Level Index Modulation and its Implementation in LoRaWAN
- Author
- Kohei Tsurumi, Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Takeo Fujii
- Publication Title
- Magazine name IEEE Internet of Things Journal Publisher IEEE Volume 9(Issue 16) Start Page 15089 - End Page 15099 (Publication Date）2022/08）
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- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Three Level Recognition Based on the Average of the Phase Differences in Physical Wireless Parameter Conversion Sensor Networks and Its Effect to Localization with RSSI
- Author
- Toshi Ito, Masafumi Oda, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
- Publication Title
- Magazine name Sensors Publisher MDPI AG Volume 23(Issue 6) Start Page 3308 - End Page 3308 (Publication Date）2023/03）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Transmission Timing and Synchronization Control for Energy-Efficient Multi-Hop LoRaWAN
- Author
- Hiroto Shida, Aoto Kaburaki, Koichi Adachi
- Publication Title
- Magazine name IEEE Access Start Page 183195 - End Page 183204 (Publication Date）2024/11）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Interference Cancellation for Coexistence of LoRaWAN with Wireless Power Transfer
- Author
- Ryota Kumada, Koichi Adachi
- Publication Title
- Magazine name IEEE Internet of Things Journal Publisher IEEE Volume 10(Issue 15) Start Page 13109 - End Page 13122 (Publication Date）2023/08）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With
Generalized Interference Detection Scheme in Heterogeneous Low Power Wide Area Networks
- Author
- Naoki Aihara, Koichi Adachi, Mai Ohta, Osamu Takyu, and Takeo Fujii
- Publication Title
- Magazine name IEEE Sensors Lett. Publisher IEEE Volume 4(Issue 6) Start Page 1 - End Page 4 (Publication Date）2020/05）
- Role
- Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (scientific journal)
- Peer-review Status
- With