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K

Koichi Adachi

keio university

15H-index
214Paper Count
973Citation Count
Published Papers 26
Publication Date
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Investigation of a Method for Identifying Sensor Information Using a Constrained Database Update Algorithm in Physical Wireless Parameter Conversion Sensor Networks
errIEEE Access
IF3.6
err2026-06-11
err0
errOAAI
errToshi Ito; Osamu Takyu; Mai Ohta; Takeo Fujii; Koichi Adachi
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Differential STFLC With Resource Grid Mapping for Robust IoT Connectivity in Time-Varying Frequency-Selective Channels
errIEEE Internet of Things Journal
IF8.9
err2026-02-27
err0
PREAI
errTaehee Choi; Han-Gyeol Lee; Koichi Adachi; Seongwook Lee; Jingon Joung
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errSave
Distributed Interference Avoidance in LoRaWAN via Spectral Features and Decision Tree
errIEEE Wireless Communications Letters
IF5.5
err2026-01-01
err0
PREAI
errKaburaki, Aoto; Adachi, Koichi
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errSave
Differential Space-Time Line Codes
errIEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
IF7.1
err2024-10-01
err1
PREAI
errJoung, Jingon; Adachi, Koichi; Yuen, Chau
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errSave
An Environment-Aware Adaptive Data-Gathering Method for Packet-Level Index Modulation in LPWA
errSENSORS
IF3.5
err2024-04-14
err0
errOAAI
errTakyu, Osamu; Takeda, Keita; Miyamoto, Ryuji; Adachi, Koichi; Ohta, Mai; Fujii, Takeo
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errSave
Packet-Level Index Modulation Based on Channel Activity Detection
errIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
IF10.7
err2024-04-01
err0
PREAI
errSuzuki, Kosuke; Adachi, Koichi; Ohta, Mai; Takyu, Osamu; Fujii, Takeo
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errSave
Adaptive Resource Allocation Utilizing Periodic Traffic and Clock Drift in LPWAN
errIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
IF10.7
err2024-04-01
err2
PREAI
errKaburaki, Aoto; Adachi, Koichi; Takyu, Osamu; Ohta, Mai; Fujii, Takeo
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errSave
Transmission Timing and Synchronization Control for Energy-Efficient Multi-Hop LoRaWAN
errIEEE ACCESS
IF3.6
err2024-01-01
err0
errOAAI
errShida, Hiroto; Kaburaki, Aoto; Adachi, Koichi
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errSave
Tackling Hidden Node Problem Utilizing Traffic Periodicity and Downlink Carrier Sense in LPWAN
errIEEE INTERNET OF THINGS JOURNAL
IF8.9
err2024-01-01
err0
PREAI
errKaburaki, Aoto; Adachi, Koichi; Takyu, Osamu
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errSave
Interference Cancelation for Coexistence of LoRaWAN With Wireless Power Transfer
errIEEE INTERNET OF THINGS JOURNAL
IF8.9
err2023-08-01
err0
PREAI
errKumada, Ryota; Adachi, Koichi
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errSave
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
errSENSORS
IF3.5
err2023-03-21
err2
errOAAI
errIto, Toshi; Oda, Masafumi; Takyu, Osamu; Ohta, Mai; Fujii, Takeo; Adachi, Koichi
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errSave
Position Estimation of Radio Source Based on Fingerprinting With Physical Wireless Parameter Conversion Sensor Networks
errIEEE ACCESS
IF3.6
err2023-01-01
err3
errOAAI
errOda, Masafumi; Takyu, Osamu; Ohta, Mai; Fujii, Takeo; Adachi, Koichi
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errSave
Simple Clock Drift Estimation and Compensation for Packet-Level Index Modulation and Its Implementation in LoRaWAN
errIEEE INTERNET OF THINGS JOURNAL
IF8.9
err2022-08-15
err4
PREAI
errTsurumi, Kohei; Kaburaki, Aoto; Adachi, Koichi; Takyu, Osamu; Ohta, Mai; Fujii, Takeo
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errSave
Aiming in Harsh Environments: A New Framework for Flexible and Adaptive Resource Management
errIEEE NETWORK
IF6.3
err2022-07-01
err6
errOAAI
errZou, Jiaqi; Liu, Rui; Wang, Chenwei; Cui, Yuanhao; Zou, Zixuan; Sun, Songlin; Adachi, Koichi
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errSave
Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa
errSENSORS
IF3.5
err2022-05-30
err0
errOAAI
errTakyu, Osamu; Kobayashi, Gaku; Adachi, Koichi; Ohta, Mai; Fujii, Takeo
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errSave
Array antenna equipped UAV-BS for efficient low power WSN and its theoretical analysis
errIET COMMUNICATIONS
IF1.6
err2021-06-03
err3
errOAAI
errLumbantoruan, Hendrik; Adachi, Koichi
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errSave
Space-Frequency-Interpolated Radio Map
errIEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
IF7.1
err2021-01-01
err44
errOAAI
errSato, Koya; Suto, Katsuya; Inage, Kei; Adachi, Koichi; Fujii, Takeo
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errSave
Packet-Level Index Modulation for LoRaWAN
errIEEE ACCESS
IF3.6
err2021-01-01
err11
errOAAI
errAdachi, Koichi; Tsurumi, Kohei; Kaburaki, Aoto; Takyu, Osamu; Ohta, Mai; Fujii, Takeo
errShare
errSave
Autonomous Decentralized Traffic Control Using Q-Learning in LPWAN
errIEEE ACCESS
IF3.6
err2021-01-01
err8
errOAAI
errKaburaki, Aoto; Adachi, Koichi; Takyu, Osamu; Ohta, Mai; Fujii, Takeo
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errSave
Achievable Rate Enhancement Based on Multi-Packet Indexing in Packet-Level Index Modulation
errIEEE ACCESS
IF3.6
err2021-01-01
err0
errOAAI
errYamabe, Riku; Nishiara, Mikihiko; Takyu, Osamu; Adachi, Koichi
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Research Directions

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Co-authors
Cooperation Journals
C
Chau Yuen
H-index: 94 · Papers: 1.6K
F
Fumiyuki Adachi
H-index: 57 · Papers: 1.2K
S
Sumei Sun
H-index: 45 · Papers: 623
J
Jingon Joung
H-index: 35 · Papers: 284
C
Chin Keong Ho
H-index: 34 · Papers: 172
View more