Publications
143 results
Taishi Watanabe, Takeo Ohseki, Issei Kanno
2024 IEEE Global Communications Conference (GLOBECOM 2024)
December 2024
Virtualized Terminal Using Terahertz-Band for Ultra High Capacity Towards Beyond 5G and 6G
Satoshi Ito, Yoshio Kunisawa, Takeo Ooseki, Tatsuya Nagao, Takahiro Hayashi
2024 IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS)
August 2024
Takuya Ohto, Keiji Yoshikawa, Hiromi Matsuno, Tatsuya Nagao
The 31st International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD 2024)
July 2024
Creation of Virtual City 3D Model for EM-Wave Propagation Dataset Extension
Rento Hagiwara(Yokohama National University), Koichi Ichige(Yokohama National University), Tatsuya Nagao, Takahiro Hayashi
2024 International Technical Conference on Circuits/Systems, Computers, and Communications (ITC-CSCC)
July 2024
Sub-THz Multi-beam Antennas for Virtualized Terminal Technology
Yoshiki Sugimoto(Nagoya Institute of Technology), Kunio Sakakibara(Nagoya Institute of Technology), Takeyuki Tsuchida(Nagoya Institute of Technology), Takuya Sugiyama(Nagoya Institute of Technology), Shumpei Kishi(Nagoya Institute of Technology), Azuki Iwamoto(Nagoya Institute of Technology), Kenta Nishimura(Nagoya Institute of Technology), Takanori Narita(Nagoya Institute of Technology), Motoko Sakamoto(Nagoya Institute of Technology), Nobuyoshi Kikuma(Nagoya Institute of Technology), Satoshi Ito, Yoshio Kunisawa, Takahiro Hayashi
2024 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit)
June 2024
Joint Multi-User Grouping and AP Switch On/Off forEnergy-Efficient Cell-Free Massive MIMO
Masaaki Ito, Issei Kanno, Yoji Kishi, Wei Yu Chen(University of Southern California), Andreas F. Molisch(University of Southern California)
The 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)
June 2024
First-Fresnel-Zone Based Path Loss Estimation for IRS Assisted Millimeter Wave Communications
Hiroki Aoki, Satoshi Ito, Takuya Ohto, Takahiro Hayashi
The 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)
June 2024
300 GHz propagation loss estimation method for BANassuming walking behavior
Kazuki Takezawa, Satoshi Ito, Takahiro Hayashi
The 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)
June 2024
Amr Amrallah, Takahide Murakami, Yu Tsukamoto, Akio Ikami, Hiroyuki Shinbo, Yoshiaki Amano
The 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)
June 2024
Propagation Path-Informed High-Generalization PathLoss Model for Unknown Region Estimation
Satoshi Ito, Takahiro Hayashi
The 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)
June 2024
Distributed DRL with Multiple Learners for APClustering in Large-scale Cell-Free Deployment
Akio Ikami, Yu Tsukamoto, Takahide Murakami, Hiroyuki Shinbo, Yoshiaki Amano
The 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)
June 2024
Signaling Storm Mitigation by Geographically Distributed C-plane NF Placement and Routing
Masayuki Kurata, Akio Ikami, Sohei Itahara, Masaki Suzuki
2024 IEEE 10th International Conference on Network Softwarization (NetSoft 2024)
June 2024
User and Passive Beam Scheduling Scheme for Liquid Crystal IRS-Assisted mmWave Communications
Keiji Yoshikawa, Takuya Ohto, Takahiro Hayashi
The 18th European Conference on Antennas and Propagation (EuCAP 2024)
March 2024
Masahiro Takigawa, Ryochi Kataoka, Issei Kanno, Yoji Kishi (KDDI)
The 18th European Conference on Antennas and Propagation (EuCAP 2024)
March 2024
Analysis of Clock Distribution in User-centric Radio Access Network for Cell-free Massive MIMO
Takahide Murakami, Naoki Aihara, Yu Tsukamoto, Akio Ikami, Hiroyuki Shinbo, Yoshiaki Amano
IEEE Consumer Communications & Networking Conference (CCNC) 2024
January 2024
Multi-homing AP Connection for Cell-Free massive MIMO in Distributed CPU Environment
Naoki Aihara, Akio Ikami, Yu Tsukamoto, Takahide Murakami, Hiroyuki Shinbo, Yoshiaki Amano
IEEE Consumer Communications & Networking Conference (CCNC) 2024
January 2024
Shunsuke Kamiwatari, Masaaki Ito, Issei Kanno, Kengo Ando(The University of Electro-Communications), Koji Ishibashi(The University of Electro-Communications)
IEEE Consumer Communications & Networking Conference (CCNC) 2024
January 2024
Masahiro Takigawa, Ryochi Kataoka, Issei Kanno, Yoji Kishi
IEEE Consumer Communications & Networking Conference (CCNC) 2024
January 2024
Wei-Yu Chen(USC), Masaaki Ito, Issei Kanno, Thomas Choi(USC), Andreas F. Molisch(USC)
The 2023 IEEE Global Communications Conference (GLOBECOM)
December 2023
User-centric AP Clustering with Deep Reinforcement Learning for Cell-Free Massive MIMO
Yu Tsukamoto, Akio Ikami, Naoki Aihara, Takahide Murakami, Hiroyuki Shinbo, Yoshiaki Amano
The 21st ACM International Symposium on Mobility Management and Wireless Access (MobiWac'23)
October 2023
Low-Complexity Digital Predistortion of RF PowerAmplifiers Based on FastGRNN
Taishi Watanabe, Takeo Ohseki, Issei Kanno, Yoshiaki Amano
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Millimeter Wave Path Loss Modeling using Multi-Resolution Map Based on ResNet
Tatsuya Nagao, Takahiro Hayashi
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Feature Extraction Using Hough Transform in RadioPropagation Estimation
Rento Hagiwara(Yokohama National University), Koichi Ichige(Yokohama National University), Tatsuya Nagao, Takahiro Hayashi
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
User-centric Virtualized CPU Deployment and AP Clustering for Scalable Cell-Free Massive MIMO
Akio Ikami, Yu Tsukamoto, Naoki Aihara, Takahide Murakami,Hiroyuki Shinbo, Yoshiaki Amano
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Measurement-based Evaluation of Path loss and Propagation Mechanisms in the 300 GHz band
Satoshi Ito, Kazuki Takezawa, Takahiro Hayashi
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
TOA-Based Positioning Scheme for IRS-Assisted 5GNetworks
Tomofumi Kanno, Takuya Ohto, Hiromi Matsuno, Tatsuya Nagao, Takahiro Hayashi
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Always-Connected Enablement Base Station to eliminatethe effects of RRC transitions delay
Takeo Ogawara, Kenichi Okonogi, Akito Suzuki, Masayuki Kurata,Sohei Itahara, Tomoyuki Nagano(KDDI), Masaki Suzuki
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Estimation Method for Human Blockage Loss in the 300GHz Band
Satoshi Ito, Kazuki Takezawa, Takahiro Hayashi
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Element Failure Correction for Reconfigurable MetasurfaceReflectors
Takuya Ohto, Hiromi Matsuno, Takahiro Hayashi, Mitsutaka Okita(Japan Display Inc.), Daiichi Suzuki(Japan Display Inc.), Kazuki Matsunaga(Japan Display Inc.), Shinichiro Oka(Japan Display Inc.)
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
Data Rate Control for C-V2X Services in a Single PDUSession based on Expected Maximum Bitrate
Tetsu Joh, Masaki Suzuki, Takeshi Kitahara(KDDI), Tomohiro Otani(KDDI)
The 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall)
October 2023
A Study on Determination Method of IRS Reflection Patterns Using Radio Environmental Map
Tomofumi Kanno, Hiromi Matsuno, Takuya Ohto, Tatsuya Nagao, Michihiro Harada, Takahiro Hayashi
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (IEEE AP-S/URSI 2023)
July 2023
Prediction Method for Incident Angle Characteristics of Bistatic RCS of Reflectarray
Hiroshi Hashiguchi( National Defense Academy), Naobumi Michishita( National Defense Academy), Hisashi Morishita( National Defense Academy), Hiromi Matsuno, Takuya Ohto, Masayuki Nakano
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (IEEE AP-S/URSI 2023)
July 2023
Lightweight AP Selection Algorithm for Uniform QualityEverywhere in Cell-Free Massive MIMO
Akio Ikami, Yu Tsukamoto, Naoki Aihara, Takahide Murakami, Hiroyuki Shinbo
The 14th International Conference on Ubiquitous and Future Networks (ICUNF 2023)
July 2023
Issei Kanno, Masaaki Ito, Yoshiaki Amano, Yoji Kishi, Thomas Choi(USC), Wei Yu Chen(USC), Andreas F. Molisch(USC)
2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring)
June 2023
RNN-Based Path Loss Modeling with Variable-Size MapData in Urban Environments
Tatsuya Nagao, Takahiro Hayashi
2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring)
June 2023
Low-Cost Path Loss Estimation Using Correlation GraphCNN with Novel Feature Parameters
Keita Imaizumi(Yokohama National University), Koichi Ichige(Yokohama National University), Tatsuya Nagao, Takahiro Hayashi
2023 IEEE 97th Vehicular Technology Conference(VTC2023-Spring)
June 2023
Measurements and Simulation of Radio Propagation on the Lunar Surface
Akira Akasaka, Feng Lu, Akira Yamaguchi, Kazunori Takeuchi, Hiroyuki Shinbo
The 34th International Symposium on Space Technology and Science (ISTS)
June 2023
A Study of Building Map Representation for Delay Spread Estimation Model using Machine Learning
Keiji Yoshikawa, Tatsuya Nagao, Kazuki Takezawa, Satoshi Ito, Takahiro Hayashi
The 17th European Conference on Antennas and Propagation (EuCAP 2023)
March 2023
High-Accuracy and High-Speed Beam Tracking Algorithm for THz Short-Range Mobile Communication
Hiromi Matsuno, Tatsuya Nagao, Takahiro Hayashi
The 17th European Conference on Antennas and Propagation (EuCAP 2023)
March 2023
Overloaded Pilot Assignment with Pilot Decontamination for Cell-Free Systems
Noboru Osawa, Fabian Göttsch (Technische Universität Berlin), Issei Kanno, Takeo Ohseki, Yoshiaki Amano, Giuseppe Caire (Technische Universität Berlin), Kosuke Yamazaki
2023 IEEE Wireless Communications and Networking Conference (WCNC)
March 2023
Basic Performance Evaluation of Low Latency and High Capacity Relay Method in Millimeter-Wave Bands
Ryochi Kataoka, Masahiro Takigawa, Takeo Ohseki, Taishi Watanabe, Yoshiaki Amano
2023 IEEE Wireless Communications and Networking Conference (WCNC)
March 2023
Digital Predistortion of RF Power Amplifiers using DeepShift
Taishi Watanabe, Takeo Ohseki , Yoshiaki Amano
2023 IEEE Wireless Communications and Networking Conference (WCNC)
March 2023
Wide Beamwidth and High Gain Reflection Pattern Design Method for Intelligent Reflecting Surface
Hiromi Matsuno, Takuya Ohto, Takahiro Hayashi, Mitsutaka Okita(Japan Display), Daiichi Suzuki(Japan Display), Kazuki Matsunaga(Japan Display), Shinichiro Oka(Japan Display)
2023 IEEE Wireless Communications and Networking Conference (WCNC)
March 2023
A Parallel Processing Method of Large-scale System Level Simulator for Advanced 5G System
Megumi Shibuya, Akira Yamaguchi, Takahide Murakami, Hiroyuki Shinbo
The 19th International Conference on Networking and Services (ICNS 2023)
March 2023
Measurements of Reflection Characteristics of the Lunar Surface for Radio Propagation
Akira Akasaka, Feng Lu(KDDI), Akira Yamaguchi, Kazunori Takeuchi, Hiroyuki Shinbo
The international IEEE Aerospace Conference 2023
March 2023
Method of Discriminating Wireless Link Status for Safe Operation Architecture of Mobile Robots
Ko Matsuhiro, Hiroyuki Shinbo, Hiroyuki Ishii, Atsuo Takanishi
2023 IEEE/SICE International Symposium on System Integration (SII 2023)
February 2023
A Realistic Path Loss Model for Cell-Free Massive MIMO in Urban Environments
Thomas Choi(USC), Issei Kanno, Masaaki Ito, Wei-Yu Chen(USC), Andreas Molisch(USC)
IEEE Global Communications Conference 2022 (GLOBECOM 2022)
December 2022
RF chain-wise Clustering for Centralized mm-wave Cell-Free massive MIMO with Hybrid Beamforming
Shunsuke Kamiwatari, Issei Kanno, Takeo Ohseki, Kosuke Yamazaki, Yoji Kishi
IEEE Global Communications Conference 2022 (GLOBECOM 2022)
December 2022
Hiroshi Hashiguchi(National Defense Academy), Naobumi Michishita (National Defense Academy), Hisashi Morishita (National Defense Academy), Hiromi Matsuno, Takuya Ohto, Masayuki Nakano
The 2022 International Symposium on Antennas and Propagation (ISAP 2022)
October 2022
Experimental Investigation of the Reflection Characteristics of a Flat Lunar Surface
Feng Lu, Akira Yamaguchi, Kazunori Takeuchi, Hiroyuki Shinbo
The 10th Annual IEEE International Conference on Wireless for Space and Extreme Environments (WISEE 2022)
October 2022
Yoshio Kunisawa, Yoshiaki Amano, Takahiro Hayashi
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
September 2022
Practical Evaluation Method for Large IRS: RCS Pattern Synthesis of Sub-IRS with Mutual Coupling
Hiromi Matsuno, Takuya Ohto, Michihiro Harada, Tatsuya Nagao, Takahiro Hayashi
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
September 2022
Interference suppression for distributed CPU deployments in Cell-Free massive MIMO
Akio Ikami, Yu Tsukamoto, Naoki Aihara, Takahide Murakami, Hiroyuki Shinbo
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
September 2022
Joint AP On/Off and User-Centric Clustering for Energy Efficient Cell-Free Massive MIMO Systems
Masaaki Ito, Issei Kanno, Yoshiaki Amano, Yoji Kishi, Wei Yu Chen(USC), Thomas Choi(USC), Andreas F. Molisch(USC)
The 2022 IEEE 96th Vehicular Technology Conference (VTC-Fall 2022)
September 2022
Kazuki Takezawa, Tatsuya Nagao, Takahiro Hayashi
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
September 2022
Fine-Tuning for Propagation Modeling of Different Frequencies with Few Data
Tatsuya Nagao, Takahiro Hayashi
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
September 2022
Learning-Based Path Loss Estimation Using Multiple Spatial Data and System Parameters
Kazuya Inoue(Yokohama National University), Keita Imaizumi (Yokohama National University), Koichi Ichige(Yokohama National University),Tatsuya Nagao, Takahiro Hayashi
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall)
September 2022
Blockage Prediction in an Outdoor mmWave Environment by Machine Learning Employing a Top View Image
Takahide Murakami, Keiji Yoshikawa, Akira Yamaguchi, Hiroyuki Shinbo
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2022)
September 2022
A Study on Path Loss Modeling Using ResNet and Pre-Training With Free Space Path Loss
Tatsuya Nagao, Takahiro Hayashi
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2022) Workshop
September 2022
Development of Intelligent Reflecting Surfaces for Mobile Communication Systems
Hiromi Matsuno, Takuya Ohto, Takahiro Hayashi
2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition
August 2022
A Study of Beam Scanning Scheme for IRS-Assisted 5G Millimeter-Wave Networks
Takuya Ohto, Hiromi Matsuno, Kazuki Takezawa, Tatsuya Nagao, Yoshiaki Amano
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI 2022)
July 2022
Dual Band and Dual Polarization Reflectarray Enabling Reflection to Two-dimensional Direction
Hiroshi Hashiguchi(National Defense Academy), Naobumi Michishita(National Defense Academy), Hisashi Morishita(National Defense Academy), Hiromi Matsuno, Takuya Ohto, Masayuki Nakano
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI 2022)
July 2022
Kazuki Takezawa, Hiromi Matsuno, Tatsuya Nagao, Takuya Ohto, Yoshiaki Amano
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI 2022)
July 2022
Hiromi Matsuno, Tatsuya Nagao, Yoshiaki Amano
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI 2022)
July 2022
Fronthaul Load-Reduced Scalable Cell Free massive MIMO by Uplink Hybrid Signal Processing
Issei Kanno, Masaaki Ito, Takeo Ohseki, Kosuke Yamazaki, Yoji Kishi, Thomas Choi(USC), Wei Yu Chen(USC), Andreas F. Molisch(USC)
The 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)
June 2022
Adaptive Function Placement with Distributed Deep Reinforcement Learning in RAN Slicing
Yu Tsukamoto, Haruhisa Hirayama, Seung Il Moon, Hiroyuki Shinbo
The 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)
June 2022
Virtualized terminal utilizing terahertz band radio waves for Beyond 5G : Link budget analysis
Yoshio Kunisawa, Yoshiaki Amano
The 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)
June 2022
Takuya Ohto, Hiromi Matsuno, Yoshiaki Amano, Mitsutaka Okita(Japan Display Inc.), Daiichi Suzuki(Japan Display Inc.), Kazuki Matsunaga(Japan Display Inc.), Shinichiro Oka(Japan Display Inc.)
The 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)
June 2022
Optimal User Load and Energy Efficiency in User-Centric Cell-Free Wireless Networks
Fabian Göttsch,(Technical University of Berlin), Noboru Osawa, Takeo Ohseki, Kosuke Yamazaki, Giuseppe Caire(Technical University of Berlin)
The 2022 IEEE 95th Vehicular Technology Conference (VTC2022-Spring)
June 2022
Development of a Direction-Variable Liquid Crystal Meta-surface Reflector
Hiromi Matsuno,Takuya Ohto,Yoshiaki Amano, Mitsutaka Okita(Japan Display Inc.), Daiichi Suzuki (Japan Display Inc.), Kazuki Matsunaga (Japan Display Inc.), Shinichiro Oka (Japan Display Inc.)
2022 IEEE International Conference on Communications (ICC 2022)
May 2022
Point Cloud Denoising Using Normal Vector-Based Graph Wavelet Shrinkage
Ryosuke Watanabe, Keisuke Nonaka, Haruhisa Kato, Eduardo Pavez(USC), Tatsuya Kobayashi, Antonio Ortega(USC)
2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
May 2022
Uplink-downlink duality and precoding strategies with partial csi in cell-free wireless networks
Fabian Göttsch(Technical University of Berlin), Noboru Osawa, Takeo Ohseki, Kosuke Yamazaki, Giuseppe Caire(Technical University of Berlin)
2022 IEEE Wireless Communications and Networking Conference (WCNC)
April 2022
Using a Drone Sounder to Measure Channels for Cell-Free Massive MIMO Systems
Thomas Choi(USC), Jorge Gomez-Ponce(USC), Colton Bullard(USC), Issei Kanno, Masaaki Ito, Takeo Ohseki, Kosuke Yamazaki, Andreas F. Molisch(USC)
2022 IEEE Wireless Communications and Networking Conference (WCNC)
April 2022
Geographical Clustering of Path Loss Modeling for Wireless Emulation in Various Environments
Tatsuya Nagao, Takahiro Hayashi
European Conference on Antennas and Propagation (EuCAP2022)
March 2022
Experimental Study of Loss and Variation of Human Blockage for Terahertz Wireless Communications
Keiji Yoshikawa, Takahiro Hayashi
16th European Conference on Antennas and Propagation (EuCAP2022)
March 2022
Ko Matsuhiro, Hiroyuki Shinbo, Hiroyuki Ishii, Atsuo Takanishi
2022 IEEE/SICE International Symposium on System Integration (SII)
January 2022
Evaluation on Energy Efficiency of UE in UL Cell-Free Massive MIMO System With Power Control Methods
Masaaki Ito, Issei Kanno, Takeo Ohseki, Kosuke Yamazaki, Yoji Kishi, Thomas Choi (University of Southern California), Andreas Molisch (University of Southern California)
2021 IEEE Globecom Workshops (GC Wkshps)
December 2021
Proposal for a User-Centric Ran Architecture Towards Beyond 5G
Kosuke Yamazaki, Takeo Ohseki, Yoshiaki Amano, Hiroyuki Shinbo, Takahide Murakami, Yoji Kishi
2021 ITU Kaleidoscope: Connecting Physical and Virtual Worlds (ITU K)
December 2021
Thomas Choi(University of Southern California), Masaaki Ito, Issei Kanno, Takeo Oseki, Kosuke Yamazaki, Andreas F. Molisch(University of Southern California)
2021 IEEE Workshop on Signal Processing Systems (SiPS)
October 2021
Power Control based Fair Coexistence of LBT-Free 5G New Radio Small Cells with WiGig Networks
Rony Kumer Saha
The 16th International Conference on Systems and Networks Communications (ICSNC 2021)
October 2021
Unlicensed Spectrum Bands for Cellular Mobile Networks-An Overview
Rony Kumer Saha
The 16th International Conference on Systems and Networks Communications (ICSNC 2021)
October 2021
On Operating Cellular Technologies in Unlicensed Spectrum Bands: A Review
Rony Kumer Saha
The 16th International Conference on Systems and Networks Communications (ICSNC 2021)
October 2021
Fabian Göttsch(Technical University of Berlin), Noboru Osawa, Takeo Ohseki, Kosuke Yamazaki, Giuseppe Caire(Technical University of Berlin)
2021 IEEE 22nd International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
September 2021
Tatsuya Nagao, Takahiro Hayashi, Yoshiaki Amano
2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)
September 2021
Effect of antenna distribution on spectral and energy efficiency of cell-free massive MIMO
Masaaki Ito, Issei Kanno, Takeo Ohseki, Kosuke Yamazaki, Yoji Kishi, Thomas Choi(University of Southern California), Andreas F. Molisch(University of Southern California)
2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)
September 2021
Takeo Ohseki, Kosuke Yamazaki, Daiki Maemoto(DENSO Corporation), Shigeki Kawai(DENSO Corporation), Tsuneo Nakata(DENSO Corporation), Akira Itou
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
September 2021
On The Building Map for Radio Propagation Prediction Using Machine Learning
Kazuya Inoue(Yokohama National University), Koichi Ichige(Yokohama National University), Tatsuya Nagao, Takahiro Hayashi
2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
September 2021
Hiroyuki Shinbo, Takahide Murakami, Yu Tsukamoto, Yoji Kishi
2021 IEEE VTS 17th Asia Pacific Wireless Communications Symposium (APWCS)
August 2021
On Achieving High Capacity using Small Cells in Multistory Buildings: A Review
Rony Kumer Saha
The Seventeenth International Conference on Wireless and Mobile Communications (ICWMC 2021)
July 2021
On Operating 5G New Radio Indoor Small Cells in the 60 GHz Unlicensed Band
Rony Kumer Saha
The 17th International Conference on Wireless and Mobile Communications(ICWMC 2021)
July 2021
Rony Kumer Saha
The 17th International Conference on Wireless and Mobile Communications(ICWMC 2021)
July 2021
Channel Estimation and Equalization for CP-OFDM-based OTFS in Fractional Doppler Channels
Noriyuki Hashimoto, Noboru Osawa, Kosuke Yamazaki, Shinsuke Ibi(Doshisha University)
2021 IEEE International Conference on Communications Workshops (ICC Workshops)
June 2021
Spectrum Reuse in the Terahertz Band for In-building Small Cell Networks
Rony Kumer Saha
The 20th International Conference on Networks (ICN 2021)
April 2021
Dynamic Spectrum Sharing in Multi-Operator Millimeter-Wave Indoor Systems
Rony Kumer Saha
The 20th International Conference on Networks (ICN 2021)
April 2021
Performance Analysis of In-building Small Cell Networks: Carrier Frequency Band Perspective
Rony Kumer Saha
The 20th International Conference on Networks (ICN 2021)
April 2021
Positioning for User Equipment of a mmWave System Using RSSI and Stereo Camera Images
Shoichiro Mihara, Satoshi Ito, Takahide Murakami, Hiroyuki Shinbo
2021 IEEE Wireless Communications and Networking Conference (WCNC)
March 2021
A Study on Urban Structure Map Extraction for Radio Propagation Prediction using XGBoost
Tatsuya Nagao, Takahiro Hayashi
The 15th European Conference on Antennas and Propagation (EuCAP 2021)
March 2021
Radio Propagation Prediction Using Neural Network and Building Occupancy Estimation
Kazuya Inoue (Yokohama National University), Koichi Ichige (Yokohama National University), Tatsuya Nagao, Takahiro Hayashi
2020 International Symposium on Antennas and Propagation (ISAP 2020)
January 2021
Dual Band and Dual Polarized Reflectarray Using Cross Dipole and Patch Elements
Nguyen Cong Oai(National Defense Academy), Naobumi Michishita(National Defense Academy), Hisashi Morishita(National Defense Academy), Hiromi Matsuno, Satoshi Ito, Takahiro Hayashi, Masayuki Nakano
2020 International Symposium on Antennas and Propagation (ISAP 2020)
January 2021
Lin Wang(Nihon Dengyo Kosaku Co., Ltd.), Hiroki Hagiwara(Nihon Dengyo Kosaku Co., Ltd.), Yuko Rikuta(Nihon Dengyo Kosaku Co., Ltd.), Toshiyuki Kobayashi (Nihon Dengyo Kosaku Co., Ltd.), Hiromi Matsuno, Takahiro Hayashi, Satoshi Ito, Masayuki Nakano
2020 International Symposium on Antennas and Propagation (ISAP 2020)
January 2021
Direction and Location Estimation Algorithm with Power Gravity Point for Spectrum Sharing
Hiromi Matsuno, Yoshio Kunisawa, Takahiro Hayashi
2020 International Symposium on Antennas and Propagation (ISAP 2020)
January 2021
Base Station Selection Method for RAT-Dependent TDOA Positioning in Mobile Network
Naoto Tsumachi, Takeo Ohseki, Kosuke Yamazaki
2021 IEEE Radio and Wireless Week (RWW 2021)
January 2021
Yosuke Segawa(The University of Electro-Communications), Suhua Tang(The University of Electro-Communications), Takaaki Ueno, Tomohiko Ogishi, Sadao Obana(The University of Electro-Communications)
2020 IEEE Vehicular Networking Conference (VNC)
December 2020
Yoichi Murakami(Tohoku University), Yosei Shibata(Tohoku University), Hiroyasu Sato(Tohoku University), Takahiro Ishinabe(Tohoku University), Hiromi Matsuno, Yoshiaki Amano, Qiang Chen(Tohoku University), Hideo Fujikake(Tohoku University)
The 27th International Display Workshops (IDW 2020)
December 2020
A Study on Forecasting of Available Spectrum Resources for Sharing using Envelope Extraction
Tatsuya Nagao, Takahiro Hayashi, Yoshiaki Amano
2020 IEEE Asia-Pacific Microwave Conference (APMC 2020)
December 2020
Ensemble Learning Method-Based Slice Admission Control for Adaptive RAN
Seung II Moon, Haruhisa Hirayama, Yu Tsukamoto, Shinobu Nanba, Hiroyuki Shinbo
2020 IEEE Global Communications Conference (GLOBECOM 2020) Workshops (GC Wkshps)
December 2020
Ryochi Kataoka, Issei Kanno, Toshinori Suzuki(Tohoku Gakuin University), Hiroyasu Ishikawa(Nihon University), Kosuke YAMZAKI, Yoji Kishi
2020 International Conference on Emerging Technologies for Communications (ICETC 2020)
December 2020
Modeling interference to reuse millimeter-wave spectrum to in-building small cells toward 6G
Rony Kumer Saha
2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall)
November 2020
A dynamic exclusive-use spectrum access method for millimeter-wave mobile systems toward 6G
Rony Kumer Saha
The 92nd Vehicular Technology Conference (VTC2020-Fall)
November 2020
Interweave shared-use model for dynamic spectrum access in millimeter-wave mobile systems for 6G
Rony Kumer Saha
The 92nd Vehicular Technology Conference (VTC2020-Fall)
November 2020
A countrywide licensed full spectrum allocation method for millimeter-wave mobile systems for 6G
Rony Kumer Saha
The 92nd Vehicular Technology Conference (VTC2020-Fall)
November 2020
A Theoretical framework toward realizing spectral and energy efficiencies of 6G mobile networks
Rony Kumer Saha
The 92nd Vehicular Technology Conference (VTC2020-Fall)
November 2020
Issei Kanno, Ryochi Kataoka, Toshinori Suzuki(Tohoku Gakuin University), Hiroyasu Ishikawa(Nihon University), Kosuke Yamzaki, Yoji Kishi
The 54th Asilomar Conference on Signals, Systems and Computers (Asilomar 2020)
November 2020
Rony Kumer Saha
The 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC 2020)
October 2020
A Flexible Licensed Spectrum Allocation Technique for Millimeter-Wave Mobile Systems Toward 6G
Rony Kumer Saha
The 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC 2020)
October 2020
Rony Kumer Saha
The 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC 2020)
October 2020
Radio Quality Estimation on Drone Flight Sites for High Reliable Operation
Nobuo Suzuki(ATR), Hiromi Matsuno, Tatsuya Yoshioka(ATR), Toshinori Suzuki (Tohoku Gakuin University)
The 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC 2020)
October 2020
Fair Spectrum Allocation for Dynamic Spectrum Sharing between Different Radio Systems
Akio Ikami, Takahiro Hayashi, Yoshiaki Amano
The 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC 2020)
October 2020
Location Estimation Algorithm for Multiple Wave Sources Using Power Gravity Points
Hiromi Matsuno, Yoshio Kunisawa, Takahiro Hayashi
The 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC 2020)
October 2020
A New Paradigm for Spectrum Allocation in Millimeter-Wave Systems
Rony Kumer Saha
The 15th International Conference on Systems and Networks Communications (ICSNC 2020)
October 2020
Rony Kumer Saha
The 15th International Conference on Systems and Networks Communications (ICSNC 2020)
October 2020
Rony Kumer Saha
The 15th International Conference on Systems and Networks Communications (ICSNC 2020)
October 2020
A Massive Millimeter-Wave Spectrum Allocation and Exploitation Technique Toward 6G Mobile Networks
Rony Kumer Saha
The 15th International Conference on Systems and Networks Communications (ICSNC 2020)
October 2020
Hiromi Matsuno, Yoshio Kunisawa, Takahiro Hayashi
2020 International Conference on Wireless Communications Signal Processing and Networking (WiSPNET 2020)
June 2020
Takahiro Hayashi, Tatsuya Nagao, Satoshi Ito
The 14th European Conference on Antennas and Propagation (EuCAP 2020)
March 2020
Study on radio propagation prediction by machine learning using urban structure maps
Tatsuya Nagao, Takahiro Hayashi
The 14th European Conference on Antennas and Propagation (EuCAP 2020)
March 2020
Fast and Reliable Dissemination of Road and Traffic Information by Combining Cellular V2X and DSRC
Masashi Takakusaki (The University of Electro-Communications), Suhua Tang (The University of Electro-Communications), Takaaki Ueno, Tomohiko Ogishi, Sadao Obana (The University of Electro-Communications)
2019 IEEE Global Communications Conference (GLOBECOM) Workshops (GC Wkshps)
December 2019
Nationwide spectrum sharing of mobile network operators with indoor small cells
Rony Kumer Saha
2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN 2019)
November 2019
Exploiting in-building small cell architecture for realizing dynamic spectrum sharing techniques
Rony Kumer Saha
2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN 2019)
November 2019
Co-primary licensed spectrum sharing techniques for in-building small cells in 5G era
Rony Kumer Saha
2019 IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN 2019)
November 2019
A technique for massive spectrum sharing with ultra-dense in-building small cells in 5G era
Rony Kumer Saha
The 90th Vehicular Technology Conference (VTC2019-Fall)
September 2019
Multi-band spectrum sharing with indoor small cells in hybrid satellite-mobile systems
Rony Kumer Saha
The 90th Vehicular Technology Conference (VTC2019-Fall)
September 2019
Diversity-multiplexing tradeoff of the two-user X-channel with two antennas
Young-bin Kim, Myung Gil Kang, Wan Choi
The 53rd IEEE International Conference on Communications (ICC 2019)
July 2019
Hierarchical and Distributed Software-Defined Network to Reduce Control Load
Tetsuro Ueda, Akira Idoue, Eiji Utsunomiya
2019 IEEE Wireless Communications and Networking Conference (WCNC)
April 2019
Backhaul Bandwidth Consideration for Workload Placement in Hierarchical Edge Cloud Architecture
Katsuo Yunoki, Hiroyuki Shinbo
2019 IEEE Wireless Communications and Networking Conference Workshop (WCNCW)
April 2019
Ryochi Kataoka, Akira Yamaguchi, Hiroyuki Shinbo
2019 IEEE 4th International Conference on Computer and Communication Systems (ICCCS)
February 2019
Topographic Allocations of MmWave Access Points inside the Passenger Car of High Speed Trains
Feng Lu, Akira Yamaguchi, Kazunori Takeuchi, Hiroyuki Shinbo
2018 4th International Conference on Systems, Control and Communications (ICSCC)
December 2018
Novel M-CORD based Multi-functional Split Enabled Virtualized Cloud RAN Testbed with Ideal Fronthaul
Rony Kumer Saha, Yu Tsukamoto, Shinobu Nanba, Kosuke Nishimura, Kosuke Yamazaki
2018 IEEE Globecom Workshops (GC Wkshps)
December 2018
Flying Base-station for a Temporary Mobile Communication Area at a Disaster
Hiroyuki Shinbo, Yoshio Kunisawa, Takuro Sakai, Yoshinori Kitatsuji, Akira Endo(KDDI), Kazuya Tanaka(KDDI)
2018 5th International Conference on Information and Communication Technologies for Disaster Management (ICT-DM)
December 2018
Katsuo Yunoki, Hiroyuki Shinbo
2018 21st International Symposium on Wireless Personal Multimedia Communications (WPMC)
November 2018
RAN Architectural Evolution Framework toward 5G and Beyond Cellular-An Overview
Rony Kumer Saha, Shinobu Nanba, Kosuke Nishimura, Young-bin Kim, Kosuke Yamazaki
2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
September 2018
Adaptive Successive Transmission in Virtual Full-Duplex Cooperative NOMA
Young-bin Kim, Kosuke Yamazaki, Bang Chul Jung(Chungnam National University)
IEEE Wireless Communications and Networking Conference 2018 (WCNC 2018)
April 2018
Reduction Scheme of SS for D2D Relay-Path Selection to Achieve Guaranteed Throughput for 5G systems
Bingxuan Zhao, Koichiro Kitagawa, Takashi Fujimoto, Katsuo Yunoki, Ryochi Kataoka, Hiroyuki Shinbo
The 15th International Conference on Wireless and Optical Communications Networks (WOCN 2018)
February 2018