Published papers
Adachi, Koichi
61-80 items (total 141)
Energy-Efficient Multi-hop LoRaWAN with Transmission and Synchronization Control
- Author
- Hiroto Shida, Aoto Kaburaki, Koichi Adachi
- 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
Performance Analysis of FSF-LoRa Under Overlapping Transmissions: From Link-Level Interference to System-Level Throughput
- Author
- Ryoya Saito, Koichi Adachi
- Publication Title
- Magazine name 2026 Seventeenth International Conference on Ubiquitous and Future Networks (ICUFN) Start Page 1 - End Page 5 (Publication Date）2026/07）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
FSF-LoRa: Fractional-Spreading-Factor-LoRa for Flexible Resource Allocation
- Author
- Ryoya Saito, Koichi Adachi
- Publication Title
- Magazine name The 2024 IEEE 100th Vehicular Technology Conference (VTC2024-Fall) Start Page 1 - End Page 5 (Publication Date）2024/10）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Novel Environmental Recognition Scheme with Mobile Data Gathering Station in Physical Wireless Parameter Conversion Sensor Networks
- Author
- Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
- Publication Title
- Magazine name The 2024 IEEE 100th Vehicular Technology Conference (VTC2024-Fall) Start Page 1 - End Page 5 (Publication Date）2024/10）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Indirect Notification of Interference Status in LoRaWAN
- Author
- Yuto Hayasaka and Koichi Adachi
- Publication Title
- Magazine name 2026 International Conference on Artificial Intelligence in Information and Communication (ICAIIC) – Special Session on Super-Intelligent Networking Start Page 1 - End Page 5 (Publication Date）2026/02）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Implicit Interference Status Notification Through Time & Frequency Resource Selection in LoRaWAN
- Author
- Yuto Hayasaka and Koichi Adachi
- Publication Title
- Magazine name The 17th Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC 2025) Start Page 1 - End Page 5 (Publication Date）2025/10）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Resource Allocation Based on Relation Information of Hidden Node for Minimizing Packet Error in LPWA
- Author
- Keita Aoki, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii
- Publication Title
- Magazine name IEEE 102th Veh. Technol. Conf. (VTC’25-fall) Start Page 1 - End Page 5 (Publication Date）2025/10）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Frequency Spectrum Sharing Between IEEE 802.11ah and LPWA in 920 MHz Band
- Author
- Ryota Okuwaki, Keita Aoki, Osamu Takyu, Koichi Adachi, Mai Ohta, and Takeo Fujii
- Publication Title
- Magazine name The 16th Int. Conf. on Ubiquitous and Future Networks (ICUFN 2025) International Workshop on Smart Radio for IoT Era (SRIoT 2025) Start Page 1 - End Page 5 (Publication Date）2025/07）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Implicit Retransmission Control in Multi-Hop LoRaWAN
- Author
- Kenji Akasu, Koki Aoyama, Takahiro Saraya, and Koichi Adachi
- Publication Title
- Magazine name The 16th Int. Conf. on Ubiquitous and Future Networks (ICUFN 2025) Start Page 1 - End Page 3 (Publication Date）2025/07）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Direction of Arrival Estimation Through Joint Phase-Time Arrays
- Author
- Kyohei Ueda and Koichi Adachi
- Publication Title
- Magazine name The 39th Int. Conf. on Information and Netw. (ICOIN 2025) Start Page 1 - End Page 5 (Publication Date）2025/01）
- Role
- Last Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Energy-saving coordinated napping (CoNap) for Wireless Networks
- Author
- Koichi Adachi, Jingon Joung, Sumei Sun, and P. H. Tan
- Publication Title
- Magazine name IEEE Global Commun. Conf. (GLOBECOM) 2012 Workshop Publisher IEEE Start Page 1150 - End Page 1154 (Publication Date）2012/12）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Power-efficient dynamic BS muting in clustered cellular system
- Author
- Koichi Adachi and Sumei Sun
- Publication Title
- Magazine name IEEE Int. Symp. on Personal, Indoor and Mobile Radio Commun. (PIMRC) 2012 Publisher IEEE Start Page 1149 - End Page 1154 (Publication Date）2012/09）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Recursive QR packet combining for uplink single-carrier multi-user MIMO HARQ using near ML detection
- Author
- T. Yamamoto, Koichi Adachi, Sumei Sun, and Fumiyuki Adachi
- Publication Title
- Magazine name 8th Int. Wireless Commun. & Mobile Computing Conf. (IWCMC) 2012 Start Page 407 - End Page 412 (Publication Date）2012/08）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Phase rotation for constructing uniform frequency spectrum in IFDMA communication
- Author
- T. Yamasaki, Osamu Takyu, Koichi Adachi, Y. Umeda, and Masao Nakagawa
- Publication Title
- Magazine name IEEE Int. Conf. on Commun. Syst. (ICCS) 2010 Publisher IEEE Start Page 751 - End Page 755 (Publication Date）2010/11）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Adaptive transmission in distributed MIMO multiplexing
- Author
- Koichi Adachi, H. Zhu, J. Wang, Fumiyuki Adachi, and Masao Nakagawa
- Publication Title
- Magazine name IEEE Int. Conf. on Commun. Syst. (ICCS) 2010 Publisher IEEE Start Page 141 - End Page 145 (Publication Date）2010/11）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Impact of frequency diversity and multi-user diversity in IFDMA
- Author
- Y. Kazama, A. Yamasaki, Koichi Adachi, and Masao Nakagawa
- Publication Title
- Magazine name IEEE Veh. Technol. conf. (VTC)’10-spring Publisher IEEE Start Page 1 - End Page 5 (Publication Date）2010/05）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Iterative interference cancellation for multi-code PR/MC-CDMA
- Author
- Koichi Adachi and Masao Nakagawa
- Publication Title
- Magazine name IEEE Wireless Commun. & Networking Conf. (WCNC)’10 Publisher IEEE Start Page 1 - End Page 6 (Publication Date）2010/04）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Virtual MIMO space division multiplexing for MC-CDMA
- Author
- Koichi Adachi, Fumiyuki Adachi, and Masao Nakagawa
- Publication Title
- Magazine name IEEE Veh. Technol. Conf. (VTC)’09-fall Publisher IEEE Start Page 1 - End Page 5 (Publication Date）2009/09）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Capacity of MC-CDMA MIMO with imperfect interference cancellation
- Author
- Koichi Adachi, Fumiyuki Adachi, and Masao Nakagawa
- Publication Title
- Magazine name 12th Int. Symp. on Wireless Personal Multimedia Commun. (WPMC)’09 Start Page 1 - End Page 5 (Publication Date）2009/09）
- Role
- First Author Corresponding Author
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With
Selective cooperative relay system with ARQ exploiting inter-relay opportunistic listening
- Author
- N. Lynn, Osamu Takyu, Koichi Adachi, and Masao Nakagawa
- Publication Title
- Magazine name The 12th Int. Symp. on Wireless Personal Multimedia Commun, (WPMC)’09 Start Page 1 - End Page 5 (Publication Date）2009/09）
- Authorship Category
- Joint Work
- Publication Category
- Research paper (international conference proceedings)
- Peer-review Status
- With