Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SANE |
2021-12-16 15:25 |
Chiba |
Chiba University (Primary: On-site, Secondary: Online) |
An Interpolation-based Vehicular Speed Measurement Technique for Chirp Sequence Radar using Narrowband Interference Canceller Takahiro Maruyama (Ibaraki Univ), Masahiro Umehira (Nanzan Univ), Watanabe Yu, Takeda Shigeki, Wang Xiaoyan (Ibaraki Univ) SANE2021-77 |
[more] |
SANE2021-77 pp.79-84 |
SANE |
2021-12-16 16:05 |
Chiba |
Chiba University (Primary: On-site, Secondary: Online) |
Impact of short range interference on automotive FMCW radar using iterative interference reduction scheme and its countermeasures Akari Sakatani, Takuto Shimura (Ibaraki Univ.), Masahiro Umehira (Ibaraki Univ./Nanzan Univ.), Yuu Watanabe, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) SANE2021-79 |
Wide deployment of FMCW (Frequency Modulated Continuous Wave) radar causes inter-radar interference which results in mis... [more] |
SANE2021-79 pp.90-95 |
SANE |
2021-12-16 17:15 |
Chiba |
Chiba University (Primary: On-site, Secondary: Online) |
A Wideband Interference Suppression Scheme for FMCW Radar using Envelope Detection and Sorting based Interference Detection Threshold Control Takuto Shimura (Ibaraki Univ.), Masahiro Umehira (Ibaraki Univ./Nanzan Univ.), Yuu Watanabe, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) SANE2021-82 |
Dense deployment of automotive FMCW radars will cause serious inter-radar interference which results in miss-detection o... [more] |
SANE2021-82 pp.107-112 |
SRW, SeMI, CNR (Joint) |
2021-11-25 09:30 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
A Proposal of Deep Reinforcement Learning based Spectrum Access Method Yuto Teraki, Xiaoyan Wang (Ibaraki Univ.), Masahiro Umehira (Nanzan Univ.) SRW2021-29 |
In the Internet of Things (IoT), the shortage of frequency resources becomes a problem when many devices communicate at ... [more] |
SRW2021-29 pp.1-6 |
AP, RCS (Joint) |
2021-11-10 10:25 |
Nagasaki |
NBC-Bekkan (Nagasaki) (Primary: On-site, Secondary: Online) |
Spectrum Efficiency Improvement of DPD based Linearizer using Operation Point Estimation Pilot Signal Atsushi Masubuchi (Ibaraki Univ.), Masahiro Umehira (Nanzan Univ.), Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) RCS2021-143 |
[more] |
RCS2021-143 pp.1-6 |
MIKA (3rd) |
2021-10-29 10:30 |
Okinawa |
(Primary: On-site, Secondary: Online) |
[Poster Presentation]
Performance Evaluation of DPD based Linearizer using Operation Point Estimation Pilot Signal for Multi-level Modulation Signals Atsushi Masubuchi (Ibaraki Univ.), Masahiro Umehira (Nanzan Univ.), Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) |
[more] |
|
SRW |
2021-08-24 10:00 |
Online |
Online |
Design of Multi-carrier Pilot Signals for Operation Point Estimation in Digital Pre-Distortion based Linearizer Atushi Masubuchi, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) SRW2021-13 |
Mobile terminal is required to improve the power utilization efficiency of HPA (High Power Amplifier) because of the inc... [more] |
SRW2021-13 pp.1-6 |
RCS, SR, SRW (Joint) |
2021-03-04 10:30 |
Online |
Online |
Performance Evaluation of Digital Pre-Distortion based Linearizer using Operation Point Estimation Pilot for Mobile Terminal in Non-linear HPA with AM/AM and AM/PM Characteristics Atsushi Masubuchi, Akira Tada, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) SRW2020-59 |
With the increase in uplink speeds and the use of millimeter wave bands, it is required to futher improve the power util... [more] |
SRW2020-59 pp.29-34 |
RCS, SR, SRW (Joint) |
2021-03-05 14:00 |
Online |
Online |
[Special Invited Talk]
Present, Past and Future of Wireless Systems
-- Looking back the half century with radio -- Masahiro Umehira (Ibaraki Univ.) RCS2020-259 SR2020-86 SRW2020-79 |
Just a few special people used wireless systems half century ago, however wireless systems such as mobile communications... [more] |
RCS2020-259 SR2020-86 SRW2020-79 p.260(RCS), p.84(SR), p.96(SRW) |
SANE |
2021-01-28 15:45 |
Online |
Online |
A Proposal of an Advanced Chirp Sequence Radar using Narrowband Interference Canceller Daiki Ammen, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) SANE2020-43 |
A chirp sequence radar is promising for automotive applications for an automated driving car and advanced driver assista... [more] |
SANE2020-43 pp.32-37 |
SR |
2021-01-26 10:50 |
Online |
Online |
An radio access control mechanism based on deep reinforcement learning Hang Zhou, Xiaoyan Wang, Masahiro Umehira (Ibaraki Univ.) SR2020-56 |
[more] |
SR2020-56 pp.52-59 |
SR |
2021-01-26 11:15 |
Online |
Online |
Reinforcement Learning based Joint Channel/Subframe Selection Scheme for Fair LTE-WiFi Coexistence Yuki Kishimoto, Xiaoyan Wang, Masahiro Umehira (Ibaraki Univ.) SR2020-57 |
In recent years, there has been an increasing demand for high-speed and large-capacity mobile communications. To deal wi... [more] |
SR2020-57 pp.60-66 |
SIP, IT, RCS |
2021-01-22 11:05 |
Online |
Online |
Design and performance of receiving filter system for Overlap-Windowed-DFTs-OFDM with overlap FFT filter bank Motoki Ishibashi, Masahiro Umehira, Wang Xiaoyan, Shigeki Takeda (Ibraki Univ.) IT2020-88 SIP2020-66 RCS2020-179 |
[more] |
IT2020-88 SIP2020-66 RCS2020-179 pp.136-141 |
SIP, IT, RCS |
2021-01-22 12:30 |
Online |
Online |
Digital Pre-distortion based HPA Linearizer using Multi-carrier Operation Point Estimation Pilot Signals for Mobile Device Applications Akira Tada, Masahiro Umehira, Xiaoyan Wang, Sigeki Takeda (Ibaraki Univ.) IT2020-91 SIP2020-69 RCS2020-182 |
[more] |
IT2020-91 SIP2020-69 RCS2020-182 pp.153-158 |
SRW, SeMI, CNR (Joint) |
2020-11-27 11:10 |
Online |
Online |
[Invited Lecture]
Evaluation of V2V Communications in Platoon using Directional Antenna Diquan Wang (Hi-Think), Xiaoyan Wang, Masahiro Umehira (Ibaraki U.) SRW2020-36 |
[more] |
SRW2020-36 pp.50-54 |
RCS |
2020-10-22 13:00 |
Online |
Online |
[Invited Lecture]
Link outage probability due to atmospheric and rain attenuation in THz-Band outdoor wireless communications Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) RCS2020-97 |
[more] |
RCS2020-97 pp.30-35 |
SRW |
2020-08-25 10:40 |
Online |
Online |
[Short Paper]
Worst-Month Statistics of Outage Probability in THz-Band Wireless Communication Systems Yuki Hatahara, Masahiro Umehira, Xiaoyan Wang (Ibaraki Univ.) SRW2020-20 |
Very wide spectrum is available in THz-band for over 100Gbps ultra-broadband wireless communications, however THz-band o... [more] |
SRW2020-20 pp.57-58 |
RCS, SR, SRW (Joint) |
2020-03-05 09:25 |
Tokyo |
Tokyo Institute of Technology (Cancelled but technical report was issued) |
Deep reinforcement learning based access control scheme for radio access networks Hang Zhou, Xiaoyan Wang, Masahiro Umehira (Ibaraki Univ.) SR2019-123 |
After a disaster occurred, it is extremely important to reconstruct the network and provide the communication services t... [more] |
SR2019-123 pp.59-64 |
RCS, SR, SRW (Joint) |
2020-03-05 09:50 |
Tokyo |
Tokyo Institute of Technology (Cancelled but technical report was issued) |
Reinforcement learning based channel selection scheme for WiFi-LTE coexistence in unlicensed spectrum Yuki Kishimoto, Xiaoyan Wang, Masahiro Umehira (Ibaraki Univ.) SR2019-124 |
In recent years, with the rapid increase in mobile traffic, there is an increasing demand of wider bandwidth for mobile ... [more] |
SR2019-124 pp.65-70 |
RCS, SR, SRW (Joint) |
2020-03-05 14:15 |
Tokyo |
Tokyo Institute of Technology (Cancelled but technical report was issued) |
Preliminary Study of HPA Linearization System using Look-up Table of HPA Input-Output Characteristics Akira Tada, Masahiro Umehira, Xiaoyan Wang, Shigeki Takeda (Ibaraki Univ.) RCS2019-368 |
In order to reduce adjacent channel leakage power (ACLP) caused by small output back-off operation of HPA (High Power Am... [more] |
RCS2019-368 pp.245-249 |