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IEICE Trans

Kazuaki KUNIHIRO

Radio-over-Fiber System with 1-Bit Outphasing Modulation for 5G/6G Indoor Wireless Communication
Yuma KASE Shinichi HORI Naoki OSHIMA Kazuaki KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2023/07/01
Vol. E106-C  No. 7  pp. 405-416
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
radio-over-fiber, outphasing, in-building wireless, beyond-5G, 6G, 
 Summary | Full Text:PDF
Learning-Based, Distributed Spectrum Observation System for Dynamic Spectrum Sharing in the 5G Era and Beyond
Masaki KITSUNEZUKA Kenta TSUKAMOTO Jun SAKAI Taichi OHTSUJI Kazuaki KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2019/08/01
Vol. E102-B  No. 8  pp. 1526-1537
Type of Manuscript:  Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond)
Category: 
Keyword: 
machine learning, radio environment, spectrum sensing, spectrum sharing, 
 Summary | Full Text:PDF
FOREWORD
Kazuaki KUNIHIRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2019/03/01
Vol. E102-A  No. 3  pp. 497-497
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF
High Efficiency Power Amplifiers for Mobile Base Stations: Recent Trends and Future Prospects for 5G
Kazuaki KUNIHIRO Shinichi HORI Tomoya KANEKO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2018/02/01
Vol. E101-A  No. 2  pp. 374-384
Type of Manuscript:  INVITED PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
power amplifier, Doherty, envelope tracking, outphasing, digital transmitter, 5G, 
 Summary | Full Text:PDF
OFDM Error Vector Magnitude Distortion Analysis
Shingo YAMANOUCHI Kazuaki KUNIHIRO Hikaru HIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/12/01
Vol. E89-C  No. 12  pp. 1836-1842
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Microwave Techniques)
Category: Active Circuits/Devices/Monolithic Microwave Integrated Circuits
Keyword: 
power amplifiers (PAs), nonlinear distortion, error vector magnitude (EVM), wireless LAN, orthogonal frequency-division multiplexing (OFDM), 
 Summary | Full Text:PDF
Two-Dimensional Cyclic Bias Device Simulator and Its Application to GaAs HJFET Pulse Pattern Effect Analysis
Yuji TAKAHASHI Kazuaki KUNIHIRO Yasuo OHNO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/06/25
Vol. E82-C  No. 6  pp. 917-923
Type of Manuscript:  Special Section PAPER (Special Issue on TCAD for Semiconductor Industries)
Category: 
Keyword: 
device simulation, cyclic bias simulator, pulse pattern effect, deep level, GaAs HJFET, 
 Summary | Full Text:PDF