Koichi Adachi

Orcid: 0000-0003-3463-1233

According to our database1, Koichi Adachi authored at least 97 papers between 2006 and 2024.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.

Timeline

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Bibliography

2024
Differential Space-Time Line Codes.
IEEE Trans. Veh. Technol., October, 2024

Packet-Level Index Modulation Based on Channel Activity Detection.
IEEE Trans. Wirel. Commun., April, 2024

Adaptive Resource Allocation Utilizing Periodic Traffic and Clock Drift in LPWAN.
IEEE Trans. Wirel. Commun., April, 2024

An Environment-Aware Adaptive Data-Gathering Method for Packet-Level Index Modulation in LPWA.
Sensors, April, 2024

Received Signal Aided Implicit Node Clustering in LPWAN.
Proceedings of the 99th IEEE Vehicular Technology Conference, 2024

FSF-LoRa: Fractional-Spreading-Factor-LoRa for Flexible Resource Allocation.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Novel Environmental Recognition Scheme with Mobile Data Gathering Station in Physical Wireless Parameter Conversion Sensor Networks.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Indoor Wireless Environment Visualization for Smart Factories.
Proceedings of the International Conference on Information Networking, 2024

Energy-Efficient Multi-Hop LoRaWAN with Transmission and Synchronization Control.
Proceedings of the International Conference on Computing, Networking and Communications, 2024

LBT-Based Resource Allocation Methods Utilizing Periodicity of Traffic in LPWAN.
Proceedings of the International Conference on Computing, Networking and Communications, 2024

Characterization of Discrimination of Number of Signal Collision Sensors Using Spectral Fluctuation Caused by Frequency Offset in Physical Wireless Parameter Conversion Sensor Networks.
Proceedings of the International Conference on Artificial Intelligence in Information and Communication , 2024

Radio Resource Allocation Scheme Considering Future Channel Conditions Based on Radio Environment Map.
Proceedings of the IEEE VTS Asia Pacific Wireless Communications Symposium, 2024

2023
Data Gathering Method with High Accuracy of Environment Recognition Using Mathematical Optimization in Packet-Level Index Modulation.
IEICE Trans. Commun., December, 2023

Interference Cancelation for Coexistence of LoRaWAN With Wireless Power Transfer.
IEEE Internet Things J., August, 2023

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, March, 2023

Position Estimation of Radio Source Based on Fingerprinting With Physical Wireless Parameter Conversion Sensor Networks.
IEEE Access, 2023

Packet-Level Index Modulation Under Duty Cycle Constraints.
Proceedings of the 26th International Symposium on Wireless Personal Multimedia Communications, 2023

Resource Allocation for Periodic Traffic in Wireless Sensor Network.
Proceedings of the IEEE Wireless Communications and Networking Conference, 2023

Dynamic Path Planning for QoS Improvement in Multiple Automated Guided Vehicles.
Proceedings of the VTS Asia Pacific Wireless Communications Symposium, 2023

2022
Flexible Index Mapping Scheme for Packet-Level Index Modulation.
IEEE Wirel. Commun. Lett., 2022

Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa.
Sensors, 2022

Aiming in Harsh Environments: A New Framework for Flexible and Adaptive Resource Management.
IEEE Netw., 2022

Simple Clock Drift Estimation and Compensation for Packet-Level Index Modulation and Its Implementation in LoRaWAN.
IEEE Internet Things J., 2022

Performance Evaluation of Highly Efficient Information Collection Methods by Trend Analysis of Sensor Information Using Pre-learning.
Proceedings of the Thirteenth International Conference on Ubiquitous and Future Networks, 2022

High-Sensitivity Detection Method for Signals in PhyC-SN.
Proceedings of the Thirteenth International Conference on Ubiquitous and Future Networks, 2022

2021
Image-Driven Spatial Interpolation With Deep Learning for Radio Map Construction.
IEEE Wirel. Commun. Lett., 2021

Space-Frequency-Interpolated Radio Map.
IEEE Trans. Veh. Technol., 2021

Array antenna equipped UAV-BS for efficient low power WSN and its theoretical analysis.
IET Commun., 2021

Achievable Rate Enhancement Based on Multi-Packet Indexing in Packet-Level Index Modulation.
IEEE Access, 2021

Autonomous Decentralized Traffic Control Using Q-Learning in LPWAN.
IEEE Access, 2021

Packet-Level Index Modulation for LoRaWAN.
IEEE Access, 2021

Transmission Timing Control Using ACK Signal in LoRaWAN.
Proceedings of the IEEE Wireless Communications and Networking Conference, 2021

Channel Allocation for LoRaWanConsidering Intra-System and Inter-System Interferences.
Proceedings of the 94th IEEE Vehicular Technology Conference, 2021

Proposal of interference power occupancy estimation method using chirp demodulation.
Proceedings of the Twelfth International Conference on Ubiquitous and Future Networks, 2021

DCT Compression Scheme for Wireless Sensor Information considering Spatial Correlation.
Proceedings of the International Conference on Information Networking, 2021

Offloading Selection with Unequal Timeslot in Mobile Edge Computing.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2021

2020
Autonomous Decentralized Frequency Resource Allocation using ACK Signal in LoRaWAN.
Proceedings of the 23rd International Symposium on Wireless Personal Multimedia Communications, 2020

Base Station Operation Based on Affinity Propagation in Cellular Networks.
Proceedings of the 2020 International Conference on Information Networking, 2020

Trajectory and Communication Protocol for Efficient Data Collecting in UAV-Enabled WSN.
Proceedings of the 2020 International Conference on Information Networking, 2020

Spectrum Database Aided Prior Vacant Frequency Band Detection for Spectrum Sharing.
Proceedings of the 2020 International Conference on Artificial Intelligence in Information and Communication, 2020

Estimation of Desired power and Undesired power Using Chirp Demodulation and Evaluation of Accuracy.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2020

Probabilistic Binary Offloading for Wireless Powered Mobile Edge Computing System.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2020

Autonomous Decentralized Transmission Timing Control in Wireless Sensor Network.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2020

2019
Radio and Computing Resource Allocation for Minimizing Total Processing Completion Time in Mobile Edge Computing.
IEEE Access, 2019

Q-Learning Aided Resource Allocation and Environment Recognition in LoRaWAN With CSMA/CA.
IEEE Access, 2019

Spectrum Sharing Exploiting Spectrum Database for LPWA.
Proceedings of the Eleventh International Conference on Ubiquitous and Future Networks, 2019

Proactive Cache System Using Cellular-Radio Information on MEC.
Proceedings of the Eleventh International Conference on Ubiquitous and Future Networks, 2019

Array Antenna for Power Saving of Sensor Nodes in UAV-BS enabled WSN.
Proceedings of the International Conference on Computing, Networking and Communications, 2019

NOMA Based UAV Relay Communication Protocol in Cellular Network.
Proceedings of the 2019 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2019

2018
Efficient CSMA/CA Packet Relay-Assisted Scheme with Payload Combining for ITS V2V Communication.
J. Inf. Process., 2018

Packet relay-assisted V2V communication with sectorised relay station employing payload combining scheme.
IET Commun., 2018

Measurement Experiments on 920 MHz Band for Spectrum Sharing with LoRaWAN.
Proceedings of the 88th IEEE Vehicular Technology Conference, 2018

Throughput Analysis of Dynamic Multi-Hop Network Under High Traffic Load.
Proceedings of the Tenth International Conference on Ubiquitous and Future Networks, 2018

Experimental Evaluation of Interference Robustness for Frequency Spectrum Sharing in WLAN Systems.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2018

Orthogonal Resource Allocation Using SVM for CSMA/CA.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2018

2017
Hybrid Group Paging for Massive Machine-Type Communications in LTE Networks.
Proceedings of the 2017 IEEE Global Communications Conference, 2017

Cooperative Transmission Strategy over Users' Mobility for Downlink Distributed Antenna Systems.
Proceedings of the 2017 IEEE Global Communications Conference, 2017

2016
Q-Learning Based Intelligent Traffic Steering in Heterogeneous Network.
Proceedings of the IEEE 83rd Vehicular Technology Conference, 2016

2015
A Distributed Resource Reservation Scheme for Handover Failure Reduction.
IEEE Wirel. Commun. Lett., 2015

A Survey on Power-Amplifier-Centric Techniques for Spectrum- and Energy-Efficient Wireless Communications.
IEEE Commun. Surv. Tutorials, 2015

Global Communications Newsletter.
IEEE Commun. Mag., 2015

AP based traffic steering for LTE-Wi-Fi networks.
Proceedings of the 2015 IEEE/CIC International Conference on Communications in China, 2015

Cooperative Transmission Strategy for Downlink Distributed Antenna Systems over Time-Varying Channel.
Proceedings of the 2015 IEEE Global Communications Conference, 2015

Heterogeneous network: An evolutionary path to 5G.
Proceedings of the 21st Asia-Pacific Conference on Communications, 2015

2013
Adaptive Coordinated Napping (CoNap) for Energy Saving in Wireless Networks.
IEEE Trans. Wirel. Commun., 2013

Joint Cooperative-Transmit and Receive FDE for Single-Carrier Incremental Relaying.
IEEE Trans. Veh. Technol., 2013

Cell selection for TDD two-tier cellular networks based on uplink-downlink capacity.
Proceedings of the 2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013

2012
Recursive QR packet combining for uplink single-carrier multi-user MIMO HARQ using near ML detection.
Wirel. Commun. Mob. Comput., 2012

Power Minimization of Cooperative Relay Transmission with Relay's Private Information.
IEEE Trans. Wirel. Commun., 2012

Inter-Sector Cooperative Relaying for Network Power Minimization.
Proceedings of the 75th IEEE Vehicular Technology Conference, 2012

Power-efficient dynamic BS muting in clustered cellular system.
Proceedings of the 23rd IEEE International Symposium on Personal, 2012

Energy-saving coordinated napping (CoNap) for wireless networks.
Proceedings of the Workshops Proceedings of the Global Communications Conference, 2012

2011
An Autonomous Selective Cooperative ARQ Protocol for Hybrid Mobile Wireless Sensor Networks.
J. Commun., 2011

Subcarrier Mapping for Single-User SC-FDMA Relay Communications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011

Phase Rotation Sequence Selection Method for IFDMA with DDCE.
Proceedings of the 73rd IEEE Vehicular Technology Conference, 2011

Single-Carrier Incremental Relaying with Joint Tx/Rx FDE.
Proceedings of the 74th IEEE Vehicular Technology Conference, 2011

Frequency Band Allocation in MIMO System Based on Received Power Difference among Users.
Proceedings of the 73rd IEEE Vehicular Technology Conference, 2011

Cooperative Relay Transmission with Relay's Private Information.
Proceedings of the 73rd IEEE Vehicular Technology Conference, 2011

Transmit and Receive Weights in Vector Coding with Channel Estimation Error and Feedback Delay.
Proceedings of the Global Communications Conference, 2011

2010
Phase Rotation for Constructing Uniform Frequency Spectrum in IFDMA Communication.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010

On the Construction of Orthogonal Spreading Code Groups for MC-CDMA with FDE in a Frequency Selective Channel.
IEICE Trans. Commun., 2010

Iterative Interference Cancellation for Multi-Code PR/MC-CDMA.
Proceedings of the 2010 IEEE Wireless Communications and Networking Conference, 2010

Impact of Frequency Diversity and Multi-User Diversity in IFDMA.
Proceedings of the 71st IEEE Vehicular Technology Conference, 2010

2009
Channel Capacity of MC-CDMA and Impact of Residual ICI.
IEICE Trans. Commun., 2009

Virtual MIMO Space Division Multiplexing for MC-CDMA.
Proceedings of the 70th IEEE Vehicular Technology Conference, 2009

Phase Rotation/MC-CDMA for Uplink Transmission.
Proceedings of the Multi-Carrier Systems & Solutions 2009, 2009

2008
On Cellular MIMO Channel Capacity.
IEICE Trans. Commun., 2008

Bit-Wise Error Detection Based Iterative Signal Detection for OFDM MIMO Multiplexing.
Proceedings of the WCNC 2008, IEEE Wireless Communications & Networking Conference, March 31 2008, 2008

Cellular MIMO Channel Capacities of MC-CDMA and OFDM.
Proceedings of the 67th IEEE Vehicular Technology Conference, 2008

2007
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., 2007

Theoretical Analysis of Decision Directed Block Iterative Channel Estimation for OFDM Mobile Radio.
IEICE Trans. Commun., 2007

Iterative Modified QRD-M Based on CRC Codes for OFDM MIMO Multiplexing.
IEICE Trans. Commun., 2007

On Cellular MIMO Spectrum Efficiency.
Proceedings of the 66th IEEE Vehicular Technology Conference, 2007

2006
Iterative QRM-MLD with Pilot-Assisted Decision Directed Channel Estimation for OFDM MIMO Multiplexing.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006

Iterative Modified QRM-MLD Based on CRC Check for OFDM MIMO Multiplexing.
Proceedings of the 63rd IEEE Vehicular Technology Conference, 2006

LDPC Coded Iterative Signal Detection Based on QRD-M with CRC Check.
Proceedings of the 64th IEEE Vehicular Technology Conference, 2006

Relay method of sending soft decided symbol in cooperative communication.
Proceedings of the Fifth IASTED International Conference on Communication Systems and Networks, 2006


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