Takanori Hara

Orcid: 0000-0001-5647-2638

Affiliations:
  • Tohoku University, Sendai, Japan
  • Tokyo University of Science, Graduate School of Science and Technology, Department of Electrical Engineering, Noda, Chiba, Japan
  • University of Electro-Communications, Advanced Wireless & Communication Research Center (AWCC), Tokyo, Japan (2022)


According to our database1, Takanori Hara authored at least 52 papers between 2018 and 2026.

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

Timeline

Legend:

Book  In proceedings  Article  PhD thesis  Dataset  Other 

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Online presence:

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Bibliography

2026
Low-Complexity Channel Estimation for OTFS via Coordinate Descent Exploiting Delay-Domain Sparsity.
IEEE Open J. Commun. Soc., 2026

Autonomous Decentralized TRP Group Selection Method to Maximize System Throughput in Downlink Distributed MIMO with Overlapped TRP Group Configuration.
IEICE Trans. Commun., 2026

Multiuser Diversity-Aware Autonomous Decentralized TRP Group Selection to Maximize System Throughput in Downlink Distributed MIMO.
Proceedings of the 40th International Conference on Information Networking, 2026

2025
Eigenvalue-Based Active User Enumeration for Grant-Free Access Under Carrier Frequency Offsets.
IEEE Wirel. Commun. Lett., April, 2025

Exploiting Low-Density Signal Structure via Approximate Message Passing With Side Information for Grant-Free NOMA.
IEEE Trans. Wirel. Commun., April, 2025

Adaptive Interference Restriction Among Spatial Streams Based on Difference in Singular Values for PAPR Reduction in Uplink Eigenmode Massive MIMO Transmission.
IEEE Access, 2025

Enhancing Power Saving Effect and Suppressing Latency Increase of C-DRX Operation Through Base Station Sleep Control.
Proceedings of the 28th International Symposium on Wireless Personal Multimedia Communications, 2025

ICA-Based Grant-Free Access With DPSK-Aided Carrier Frequency Offset Compensation.
Proceedings of the 28th International Symposium on Wireless Personal Multimedia Communications, 2025

Decentralized User Association Method to Minimize File Drop Rate in Co-existing Networks with HAPS and Terrestrial BSs.
Proceedings of the 28th International Symposium on Wireless Personal Multimedia Communications, 2025

Differential Modulation Based Non-Coherent Grant-Free NOMA Under Timing Offsets.
Proceedings of the 2025 IEEE Wireless Communications and Networking Conference (WCNC), 2025

Inter-Network Interference Coordination Using Protected Band in Co-existing Networks with HAPS and Terrestrial BSs.
Proceedings of the 2025 IEEE Wireless Communications and Networking Conference (WCNC), 2025

Efficient Channel Estimation Utilizing Channel Sparsity in the Delay Domain for OTFS Systems.
Proceedings of the 101st IEEE Vehicular Technology Conference, 2025

2024
Efficient Parallel PAPR Reduction Method Using Null-Constrained Peak Cancellation Signal for Massive MIMO-OFDM Systems.
IEEE Open J. Commun. Soc., 2024

Throughput Maximization-Based AP Clustering Methods in Downlink Cell-Free MIMO Under Partial CSI Condition.
IEICE Trans. Commun., 2024

Base Station-Driven PAPR Reduction Method Utilizing Null Space for MIMO-OFDM Systems With Amplify-and-Forward Relaying.
IEEE Access, 2024

PAPR Reduction Method Based on Commonly Reserved Tones Among Multiple Users in FDMA Uplink.
Proceedings of the 99th IEEE Vehicular Technology Conference, 2024

Autonomous Decentralized TRP Group Selection and Bandwidth Allocation in Downlink Distributed MIMO with Overlapped TRP Group Configuration.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

PAPR Reduction Using Average Transmit Signal Power Difference Among Transmit Antennas for Massive MIMO-OFDM with Uniform Planar Array.
Proceedings of the 99th IEEE Vehicular Technology Conference, 2024

Distributed DQN-Based Frequency Block-Dependent Sleep Control of Base Stations for Improving Energy Efficiency Both in Up and Downlinks.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Beam Selection Method Based on Angle-Domain Adaptive Beam Grouping for Massive MIMO Analog Beamforming Using NOMA in Cellular Downlink.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Autonomous Decentralized TRP Group Selection to Maximize System Throughput in Downlink Distributed MIMO System.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Decentralized User Association Method to Maximize System-Level Throughput Satisfaction Rate in Co-existing Networks with HAPS and Terrestrial BSs.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

Highly-Efficient Low-Latency Scheduling Method in Round-Trip Communication for Feedback Control.
Proceedings of the 99th IEEE Vehicular Technology Conference, 2024

Peak Cancellation Signal-Based Parallel PAPR Reduction Method Using Low-Dimensional Null Space in Massive MIMO-OFDM.
Proceedings of the International Conference on Computing, Networking and Communications, 2024

Transmitter Filtering-aided Sparse Activity Detection for TDD-based Random Access.
Proceedings of the International Conference on Computing, Networking and Communications, 2024

2023
NOMA-Based Highly-Efficient Low-Latency HARQ with Inter-Base Station Cooperation for URLLC.
IEICE Trans. Commun., November, 2023

Energy-Efficient Frequency Block-Dependent Base Station Sleep Control Based on a Decentralized Probabilistic Approach.
Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming.
Proceedings of the 97th IEEE Vehicular Technology Conference, 2023

Low-Complexity User-Centric AP Clustering Method in Downlink Cell-Free MIMO with Regularized ZF-Based Beamforming.
Proceedings of the 98th IEEE Vehicular Technology Conference, 2023

Integration of Index and Differential Modulation for Non-coherent Grant-free NOMA.
Proceedings of the 57th Asilomar Conference on Signals, Systems, and Computers, ACSSC 2023, Pacific Grove, CA, USA, October 29, 2023

2022
User-Centric Design of Millimeter Wave Communications for Beyond 5G and 6G.
IEICE Trans. Commun., October, 2022

Blind Multiple Measurement Vector AMP Based on Expectation Maximization for Grant-Free NOMA.
IEEE Wirel. Commun. Lett., 2022

HARQ Using Hierarchical Tree-Structured Random Access Identifiers with Random Retransmission Time Back-Off in NOMA-Based Random Access.
Proceedings of the 96th Vehicular Technology Conference, 2022

Repetition-Based NOMA-HARQ with Adaptive Termination for URLLC.
Proceedings of the 96th Vehicular Technology Conference, 2022

Autonomous Decentralized User Association Method to Maximize Integrated System Throughput for Multi-service Coexistence.
Proceedings of the 96th Vehicular Technology Conference, 2022

Iterative Activity Detection and Carrier Frequency Offset Estimation for Grant-Free NOMA.
Proceedings of the 2022 IEEE 33rd Annual International Symposium on Personal, 2022

Grant-Free NOMA Using Time-Delay Domain for Low-Latency Massive Access over MIMO-OFDM.
Proceedings of the IEEE International Conference on Communications, 2022

2021
Hyperparameter-Free Receiver for Grant-Free NOMA Systems With MIMO-OFDM.
IEEE Wirel. Commun. Lett., 2021

Robust Symbol Detection in Large-Scale Overloaded NOMA Systems.
IEEE Open J. Commun. Soc., 2021

A Stochastic Gradient Descent Approach for Hybrid mmWave Beamforming With Blockage and CSI-Error Robustness.
IEEE Access, 2021

Ambient OFDM Pilot-Aided Backscatter Communications: Concept and Design.
IEEE Access, 2021

2020
Stochastic Learning Robust Beamforming for Millimeter-Wave Systems With Path Blockage.
IEEE Wirel. Commun. Lett., 2020

Research Project to Realize Various High-reliability Communications in Advanced 5G Network.
Proceedings of the 2020 IEEE Wireless Communications and Networking Conference, 2020

Grant-Free NOMA Using Approximate Message Passing with Multi-Measurement Vector.
Proceedings of the 2020 International Conference on Information Networking, 2020

Activity Detection for Uplink Grant-Free NOMA in the Presence of Carrier Frequency Offsets.
Proceedings of the 2020 IEEE International Conference on Communications Workshops, 2020

Packet Aggregation Based on Encryption-Then-Compression for Highly Efficient Multi-Hop Transmission.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2020

2019
Massively Concurrent Non-Orthogonal Multiple Access for 5G Networks and Beyond.
IEEE Access, 2019

Grant-Free Non-Orthogonal Multiple Access With Multiple-Antenna Base Station and Its Efficient Receiver Design.
IEEE Access, 2019

On the Sum-Rate Capacity and Spectral Efficiency Gains of Massively Concurrent NOMA Systems.
Proceedings of the 2019 IEEE Wireless Communications and Networking Conference, 2019

Low Complexity Uplink Grant-Free NOMA Based on Boosted Approximate Message Passing.
Proceedings of the 53rd Asilomar Conference on Signals, Systems, and Computers, 2019

2018
Aggregate-Compression-Aided Subcarrier IQ Index Modulation.
Proceedings of the 15th Workshop on Positioning, Navigation and Communications, 2018

Low-Complexity Generator Polynomial Search for Turbo Trellis-Coded Spatial Modulation Using Symbol-based EXIT Charts.
Proceedings of the 10th IEEE International Symposium on Turbo Codes & Iterative Information Processing, 2018


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