Koichi Adachi - RankMe

111 papers B 13C 2Misc 4Journal 44Unranked 48

Year	Rank	Type	Title / Venue / Authors
2026	—	`conf`	Indirect Notification of Interference Status Through Resource Mapping in Lorawan. ICAIIC Yuto Hayasaka, Koichi Adachi
2025	J	`jnl`	Channel Phase Nonreciprocity Compensation for Space-Frequency Line Coded OFDM Systems. IEEE Access Han-Gyeol Lee, Jihoon Choi, Juyeop Kim, Koichi Adachi, Yue Xiao, Jingon Joung
2025	—	`conf`	Direction of Arrival Estimation Through Joint Phase-Time Arrays. ICOIN Kyohei Ueda, Koichi Adachi
2025	—	`conf`	Implicit Interference Status Notification Through Time & Frequency Resource Selection in LoRaWAN. APSIPA Yuto Hayasaka, Koichi Adachi
2025	—	`conf`	Resource Allocation Based on Relation Information of Hidden Node for Minimizing Packet Error in LPWA. VTC2025-Fall Keita Aoki, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii
2025	J	`jnl`	Tackling Hidden Node Problem Utilizing Traffic Periodicity and Downlink Carrier Sense in LPWAN. IEEE Internet Things J. Aoto Kaburaki, Koichi Adachi, Osamu Takyu
2025	J	`jnl`	Transmit Antenna Selection Using Gated Recurrent Units for UAV-to-LEO Satellite Communications. IEEE Trans. Veh. Technol. Jaehong Kim, Seok Jin Hong, Koichi Adachi, Jian Zhao, Eui-Rim Jeong, Jingon Joung
2024	J	`jnl`	Adaptive Resource Allocation Utilizing Periodic Traffic and Clock Drift in LPWAN. IEEE Trans. Wirel. Commun. Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2024	J	`jnl`	An Environment-Aware Adaptive Data-Gathering Method for Packet-Level Index Modulation in LPWA. Sensors Osamu Takyu, Keita Takeda, Ryuji Miyamoto, Koichi Adachi, Mai Ohta, Takeo Fujii
2024	—	`conf`	Characterization of Discrimination of Number of Signal Collision Sensors Using Spectral Fluctuation Caused by Frequency Offset in Physical Wireless Parameter Conversion Sensor Networks. ICAIIC Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
2024	—	`conf`	Collection of Correlated Information from Superimposed Multiple Chirp Signals. APSIPA Koki Aoyama, Koichi Adachi
2024	J	`jnl`	Differential Space-Time Line Codes. IEEE Trans. Veh. Technol. Jingon Joung, Koichi Adachi, Chau Yuen
2024	Misc	`conf`	Energy-Efficient Multi-Hop LoRaWAN with Transmission and Synchronization Control. ICNC Hiroto Shida, Aoto Kaburaki, Koichi Adachi
2024	—	`conf`	FSF-LoRa: Fractional-Spreading-Factor-LoRa for Flexible Resource Allocation. VTC Fall Ryoya Saito, Koichi Adachi
2024	B	`conf`	Indoor Radio Environment Map Construction using Node Position Estimation for Smart Factories. PIMRC Hayato Mukasa, Kohei Yuzawa, Takeo Fujii, Koichi Adachi
2024	—	`conf`	Indoor Wireless Environment Visualization for Smart Factories. ICOIN Hayato Mukasa, Koshiro Aruga, Takeo Fujii, Koichi Adachi
2024	Misc	`conf`	LBT-Based Resource Allocation Methods Utilizing Periodicity of Traffic in LPWAN. ICNC Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2024	—	`conf`	Novel Environmental Recognition Scheme with Mobile Data Gathering Station in Physical Wireless Parameter Conversion Sensor Networks. VTC Fall Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
2024	J	`jnl`	Packet-Level Index Modulation Based on Channel Activity Detection. IEEE Trans. Wirel. Commun. Kosuke Suzuki, Koichi Adachi, Mai Ohta, Osamu Takyu, Takeo Fujii
2024	—	`conf`	Radio Resource Allocation Scheme Considering Future Channel Conditions Based on Radio Environment Map. APWCS Kotaro Yoshikawa, Takumi Tanagi, Koichi Adachi
2024	—	`conf`	Received Signal Aided Implicit Node Clustering in LPWAN. VTC Spring Takahiro Saraya, Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Takeo Fujii, Mai Ohta
2024	J	`jnl`	Transmission Timing and Synchronization Control for Energy-Efficient Multi-Hop LoRaWAN. IEEE Access Hiroto Shida, Aoto Kaburaki, Koichi Adachi
2023	J	`jnl`	Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-Level Index Modulation. IEICE Trans. Commun. Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii
2023	—	`conf`	Dynamic Path Planning for QoS Improvement in Multiple Automated Guided Vehicles. APWCS Takumi Tanagi, Koichi Adachi
2023	J	`jnl`	Interference Cancelation for Coexistence of LoRaWAN With Wireless Power Transfer. IEEE Internet Things J. Ryota Kumada, Koichi Adachi
2023	—	`conf`	Packet-Level Index Modulation Under Duty Cycle Constraints. WPMC Ryogo Oya, Shinichiro Kakuda, Takeo Fujii, Osamu Takyu, Mai Ohta, Koichi Adachi
2023	J	`jnl`	Position Estimation of Radio Source Based on Fingerprinting With Physical Wireless Parameter Conversion Sensor Networks. IEEE Access Masafumi Oda, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
2023	B	`conf`	Resource Allocation for Periodic Traffic in Wireless Sensor Network. WCNC Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2023	J	`jnl`	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. Sensors Toshi Ito, Masafumi Oda, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
2022	J	`jnl`	Aiming in Harsh Environments: A New Framework for Flexible and Adaptive Resource Management. CoRR Jiaqi Zou, Rui Liu, Chenwei Wang, Yuanhao Cui, Zixuan Zou, Songlin Sun, Koichi Adachi
2022	J	`jnl`	Aiming in Harsh Environments: A New Framework for Flexible and Adaptive Resource Management. IEEE Netw. Jiaqi Zou, Rui Liu, Chenwei Wang, Yuanhao Cui, Zixuan Zou, Songlin Sun, Koichi Adachi
2022	J	`jnl`	Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa. Sensors Osamu Takyu, Gaku Kobayashi, Koichi Adachi, Mai Ohta, Takeo Fujii
2022	J	`jnl`	Flexible Index Mapping Scheme for Packet-Level Index Modulation. IEEE Wirel. Commun. Lett. Kosuke Suzuki, Koichi Adachi, Mai Ohta, Osamu Takyu, Takeo Fujii
2022	—	`conf`	High-Sensitivity Detection Method for Signals in PhyC-SN. ICUFN Toshi Ito, Osamu Takyu, Mai Ohta, Takeo Fujii, Koichi Adachi
2022	—	`conf`	Performance Evaluation of Highly Efficient Information Collection Methods by Trend Analysis of Sensor Information Using Pre-learning. ICUFN Ryuji Miyamoto, Osamu Takyu, Hiroshi Fujiwara, Koichi Adachi, Mai Ohta, Takeo Fujii
2022	J	`jnl`	Simple Clock Drift Estimation and Compensation for Packet-Level Index Modulation and Its Implementation in LoRaWAN. IEEE Internet Things J. Kohei Tsurumi, Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2021	J	`jnl`	Achievable Rate Enhancement Based on Multi-Packet Indexing in Packet-Level Index Modulation. IEEE Access Riku Yamabe, Mikihiko Nishiara, Osamu Takyu, Koichi Adachi
2021	J	`jnl`	Array antenna equipped UAV-BS for efficient low power WSN and its theoretical analysis. IET Commun. Hendrik Lumbantoruan, Koichi Adachi
2021	J	`jnl`	Autonomous Decentralized Traffic Control Using Q-Learning in LPWAN. IEEE Access Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2021	—	`conf`	Channel Allocation for LoRaWanConsidering Intra-System and Inter-System Interferences. VTC Fall Shinichiro Kakuda, Yudai Yamazaki, Keita Katagiri, Takeo Fujii, Osamu Takyu, Mai Ohta, Koichi Adachi
2021	—	`conf`	DCT Compression Scheme for Wireless Sensor Information considering Spatial Correlation. ICOIN Kohei Natsume, Mai Ohta, Koichi Adachi, Osamu Takyu, Takeo Fujii
2021	J	`jnl`	Image-Driven Spatial Interpolation With Deep Learning for Radio Map Construction. IEEE Wirel. Commun. Lett. Katsuya Suto, Shinsuke Bannai, Koya Sato, Kei Inage, Koichi Adachi, Takeo Fujii
2021	—	`conf`	Offloading Selection with Unequal Timeslot in Mobile Edge Computing. APSIPA ASC Naotaka Hirayama, Takuya Kobayashi, Koichi Adachi
2021	J	`jnl`	Packet-Level Index Modulation for LoRaWAN. IEEE Access Koichi Adachi, Kohei Tsurumi, Aoto Kaburaki, Osamu Takyu, Mai Ohta, Takeo Fujii
2021	—	`conf`	Proposal of interference power occupancy estimation method using chirp demodulation. ICUFN Gaku Kobayashi, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii
2021	J	`jnl`	Space-Frequency-Interpolated Radio Map. IEEE Trans. Veh. Technol. Koya Sato, Katsuya Suto, Kei Inage, Koichi Adachi, Takeo Fujii
2021	B	`conf`	Transmission Timing Control Using ACK Signal in LoRaWAN. WCNC Muying Chen, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2020	—	`conf`	Autonomous Decentralized Frequency Resource Allocation using ACK Signal in LoRaWAN. WPMC Kosuke Suzuki, Naoki Aihara, Koichi Adachi, Satoshi Yamazaki
2020	—	`conf`	Autonomous Decentralized Transmission Timing Control in Wireless Sensor Network. APSIPA Aoto Kaburaki, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2020	—	`conf`	Base Station Operation Based on Affinity Propagation in Cellular Networks. ICOIN Kazunari Takahashi, Koichi Adachi
2020	—	`conf`	Estimation of Desired power and Undesired power Using Chirp Demodulation and Evaluation of Accuracy. APSIPA Gaku Kobayashi, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii
2020	—	`conf`	Probabilistic Binary Offloading for Wireless Powered Mobile Edge Computing System. APSIPA Takuya Kobayashi, Koichi Adachi
2020	—	`conf`	Spectrum Database Aided Prior Vacant Frequency Band Detection for Spectrum Sharing. ICAIIC Miho Musashi, Koichi Adachi
2020	—	`conf`	Trajectory and Communication Protocol for Efficient Data Collecting in UAV-Enabled WSN. ICOIN Hendrik Lumbantoruan, Koichi Adachi
2019	Misc	`conf`	Array Antenna for Power Saving of Sensor Nodes in UAV-BS enabled WSN. ICNC Hendrik Lumbantoruan, Koichi Adachi
2019	—	`conf`	NOMA Based UAV Relay Communication Protocol in Cellular Network. APSIPA Jumpei Kawakami, Hendrik Lumbantoruan, Koichi Adachi
2019	—	`conf`	Proactive Cache System Using Cellular-Radio Information on MEC. ICUFN Miho Tanaka, Kenichi Nagasue, Jun Ogawa, Akira Yokomichi, Yoshihiro Ando, Takayuki Ojima, Toshiyuki Shizuoka, Koichi Adachi, Takeo Fujii
2019	J	`jnl`	Q-Learning Aided Resource Allocation and Environment Recognition in LoRaWAN With CSMA/CA. IEEE Access Naoki Aihara, Koichi Adachi, Osamu Takyu, Mai Ohta, Takeo Fujii
2019	J	`jnl`	Radio and Computing Resource Allocation for Minimizing Total Processing Completion Time in Mobile Edge Computing. IEEE Access Ryuji Kobayashi, Koichi Adachi
2019	—	`conf`	Spectrum Sharing Exploiting Spectrum Database for LPWA. ICUFN Yudai Yamazaki, Takeo Fujii, Osamu Takyu, Mai Ohta, Koichi Adachi
2018	J	`jnl`	Efficient CSMA/CA Packet Relay-Assisted Scheme with Payload Combining for ITS V2V Communication. J. Inf. Process. Le Tien Trien, Koichi Adachi, Yasushi Yamao
2018	—	`conf`	Experimental Evaluation of Interference Robustness for Frequency Spectrum Sharing in WLAN Systems. APSIPA Hironori Godo, Osamu Takyu, Koichi Adachi, Mai Ohta, Takeo Fujii, Fumihito Sasamori, Shiro Handa
2018	—	`conf`	Measurement Experiments on 920 MHz Band for Spectrum Sharing with LoRaWAN. VTC Fall Mai Ohta, Koichi Adachi, Naoki Aihara, Osamu Takyu, Takeo Fujii, Makoto Taromaru
2018	—	`conf`	Orthogonal Resource Allocation Using SVM for CSMA/CA. APSIPA Naoki Aihara, Koichi Adachi
2018	J	`jnl`	Packet relay-assisted V2V communication with sectorised relay station employing payload combining scheme. IET Commun. Le Tien Trien, Koichi Adachi, Yasushi Yamao
2018	—	`conf`	Throughput Analysis of Dynamic Multi-Hop Network Under High Traffic Load. ICUFN Yusuke Sunada, Koichi Adachi, Yasushi Yamao
2017	B	`conf`	Cooperative Transmission Strategy over Users' Mobility for Downlink Distributed Antenna Systems. GLOBECOM Ashim Khadka, Koichi Adachi, Sumei Sun, Junyuan Wang, Huiling Zhu, Jiangzhou Wang
2017	B	`conf`	Hybrid Group Paging for Massive Machine-Type Communications in LTE Networks. GLOBECOM Ernest Kurniawan, Peng Hui Tan, Koichi Adachi, Sumei Sun
2016	—	`conf`	Q-Learning Based Intelligent Traffic Steering in Heterogeneous Network. VTC Spring Koichi Adachi, Maodong Li, Peng Hui Tan, Yuan Zhou, Sumei Sun
2015	J	`jnl`	A Distributed Resource Reservation Scheme for Handover Failure Reduction. IEEE Wirel. Commun. Lett. Koichi Adachi, Jingon Joung, Yuan Zhou, Sumei Sun
2015	J	`jnl`	A Survey on Power-Amplifier-Centric Techniques for Spectrum- and Energy-Efficient Wireless Communications. IEEE Commun. Surv. Tutorials Jingon Joung, Chin Keong Ho, Koichi Adachi, Sumei Sun
2015	C	`conf`	AP based traffic steering for LTE-Wi-Fi networks. ICCC Sumei Sun, Peng Hui Tan, Yuan Zhou, Koichi Adachi, Maodong Li
2015	B	`conf`	Cooperative Transmission Strategy for Downlink Distributed Antenna Systems over Time-Varying Channel. GLOBECOM Ashim Khadka, Koichi Adachi, Sumei Sun, Huiling Zhu, Jiangzhou Wang
2015	J	`jnl`	Global Communications Newsletter. IEEE Commun. Mag. Koichi Adachi
2015	C	`conf`	Heterogeneous network: An evolutionary path to 5G. APCC Sumei Sun, Koichi Adachi, Peng Hui Tan, Yuan Zhou, Jingon Joung, Chin Keong Ho
2013	J	`jnl`	Adaptive Coordinated Napping (CoNap) for Energy Saving in Wireless Networks. IEEE Trans. Wirel. Commun. Koichi Adachi, Jingon Joung, Sumei Sun, Peng Hui Tan
2013	B	`conf`	Cell selection for TDD two-tier cellular networks based on uplink-downlink capacity. WCNC Poramate Tarasak, Koichi Adachi, Sumei Sun
2013	J	`jnl`	Joint Cooperative-Transmit and Receive FDE for Single-Carrier Incremental Relaying. IEEE Trans. Veh. Technol. Koichi Adachi, Kazuki Takeda, Sumei Sun, Fumiyuki Adachi
2012	—	`conf`	Energy-saving coordinated napping (CoNap) for wireless networks. GLOBECOM Workshops Koichi Adachi, Jingon Joung, Sumei Sun, Peng Hui Tan
2012	—	`conf`	Inter-Sector Cooperative Relaying for Network Power Minimization. VTC Spring Koichi Adachi, Sumei Sun
2012	J	`jnl`	Power Minimization of Cooperative Relay Transmission with Relay's Private Information. IEEE Trans. Wirel. Commun. Koichi Adachi, Sumei Sun, Chin Keong Ho
2012	B	`conf`	Power-efficient dynamic BS muting in clustered cellular system. PIMRC Koichi Adachi, Sumei Sun
2012	B	`conf`	Recursive QR packet combining for uplink single-carrier multi-user MIMO HARQ using near ML detection. IWCMC Tetsuya Yamamoto, Koichi Adachi, Sumei Sun, Fumiyuki Adachi
2012	J	`jnl`	Recursive QR packet combining for uplink single-carrier multi-user MIMO HARQ using near ML detection. Wirel. Commun. Mob. Comput. Tetsuya Yamamoto, Koichi Adachi, Sumei Sun, Fumiyuki Adachi
2011	J	`jnl`	An Autonomous Selective Cooperative ARQ Protocol for Hybrid Mobile Wireless Sensor Networks. J. Commun. Nandar Lynn, Osamu Takyu, Koichi Adachi, Masao Nakagawa, Tomoaki Ohtsuki
2011	—	`conf`	Cooperative Relay Transmission with Relay's Private Information. VTC Spring Koichi Adachi, Sumei Sun, Jingon Joung
2011	—	`conf`	Frequency Band Allocation in MIMO System Based on Received Power Difference among Users. VTC Spring Hironori Kizuka, Koichi Adachi, Tomoaki Ohtsuki
2011	—	`conf`	Phase Rotation Sequence Selection Method for IFDMA with DDCE. VTC Spring Kazunori Yamamoto, Koichi Adachi, Tomoaki Ohtsuki
2011	—	`conf`	Power Minimization of Cooperative Relay Transmission with Relay's Private Information. VTC Fall Koichi Adachi, Sumei Sun, Chin Keong Ho
2011	—	`conf`	Single-Carrier Incremental Relaying with Joint Tx/Rx FDE. VTC Fall Kazuki Takeda, Koichi Adachi, Sumei Sun, Fumiyuki Adachi
2011	J	`jnl`	Subcarrier Mapping for Single-User SC-FDMA Relay Communications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Yu Hemmi, Koichi Adachi, Tomoaki Ohtsuki
2011	B	`conf`	Transmit and Receive Weights in Vector Coding with Channel Estimation Error and Feedback Delay. GLOBECOM Kyohei Takano, Koichi Adachi, Tomoaki Ohtsuki
2010	—	`conf`	Impact of Frequency Diversity and Multi-User Diversity in IFDMA. VTC Spring Yuichi Kazama, Akira Yamasaki, Koichi Adachi, Masao Nakagawa
2010	B	`conf`	Iterative Interference Cancellation for Multi-Code PR/MC-CDMA. WCNC Koichi Adachi, Masao Nakagawa
2010	J	`jnl`	On the Construction of Orthogonal Spreading Code Groups for MC-CDMA with FDE in a Frequency Selective Channel. IEICE Trans. Commun. Koichi Adachi, Masao Nakagawa
2010	J	`jnl`	Phase Rotation for Constructing Uniform Frequency Spectrum in IFDMA Communication. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Takeo Yamasaki, Osamu Takyu, Koichi Adachi, Yohtaro Umeda, Masao Nakagawa
2009	J	`jnl`	Channel Capacity of MC-CDMA and Impact of Residual ICI. IEICE Trans. Commun. Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2009	B	`conf`	On the construction of orthogonal spreading code groups for MC-CDMA with FDE in a frequency selective channel. WCNC Koichi Adachi, Masao Nakagawa
2009	—	`conf`	Phase Rotation/MC-CDMA for Uplink Transmission. MCSS Koichi Adachi, Masao Nakagawa
2009	—	`conf`	Virtual MIMO Space Division Multiplexing for MC-CDMA. VTC Fall Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2008	B	`conf`	Bit-Wise Error Detection Based Iterative Signal Detection for OFDM MIMO Multiplexing. WCNC Koichi Adachi, Masao Nakagawa
2008	—	`conf`	Cellular MIMO Channel Capacities of MC-CDMA and OFDM. VTC Spring Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2008	J	`jnl`	On Cellular MIMO Channel Capacity. IEICE Trans. Commun. Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2007	J	`jnl`	Iterative Modified QRD-M Based on CRC Codes for OFDM MIMO Multiplexing. IEICE Trans. Commun. Koichi Adachi, Masao Nakagawa
2007	—	`conf`	On Cellular MIMO Spectrum Efficiency. VTC Fall Koichi Adachi, Fumiyuki Adachi, Masao Nakagawa
2007	J	`jnl`	Relay Method of Sending Soft Decision Symbol Based on the Result of Error Detecting Code in Cooperative Communication. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Yuki Fukuyama, Osamu Takyu, Koichi Adachi, Masao Nakagawa
2007	J	`jnl`	Theoretical Analysis of Decision Directed Block Iterative Channel Estimation for OFDM Mobile Radio. IEICE Trans. Commun. Koichi Adachi, Masao Nakagawa
2006	—	`conf`	Iterative Modified QRM-MLD Based on CRC Check for OFDM MIMO Multiplexing. VTC Spring Koichi Adachi, Masao Nakagawa
2006	J	`jnl`	Iterative QRM-MLD with Pilot-Assisted Decision Directed Channel Estimation for OFDM MIMO Multiplexing. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Koichi Adachi, Riaz Esmailzadeh, Masao Nakagawa
2006	—	`conf`	LDPC Coded Iterative Signal Detection Based on QRD-M with CRC Check. VTC Fall Koichi Adachi, Masao Nakagawa
2006	Misc	`conf`	Relay method of sending soft decided symbol in cooperative communication. Communication Systems and Networks Yuki Fukuyama, Osamu Takyu, Koichi Adachi, Masao Nakagawa