Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP, RCS (Joint) |
2023-11-16 11:00 |
Kumamoto |
Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Fast Beam Search for Distributed Antenna Systems in High Frequency Bands Shuki Wai, Takuto Arai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) AP2023-143 RCS2023-166 |
In order to further increase the capacity of wireless communications, attention is focused on the combination of high-fr... [more] |
AP2023-143 RCS2023-166 pp.67-72(AP), pp.71-76(RCS) |
RISING (3rd) |
2023-10-31 13:00 |
Hokkaido |
Kaderu 2・7 (Sapporo) |
[Poster Presentation]
Object Position Prediction Leveraging Both-side Angular Power Profiles in mmWave Communications Itsuki Yonemura (Kyoto Univ.), Koji Yamamoto (KIT), Kazunori Hayashi (Kyoto Univ.), Takuto Arai, Shuki Wai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) |
This study experimentally demonstrates a novel position prediction leveraging both-side angular power profiles (APPs) sc... [more] |
|
RCS |
2023-10-19 16:40 |
Kagawa |
Kagawa University (Saiwai-cho Campus), and online (Primary: On-site, Secondary: Online) |
Transmission Performance and Handover Control Technique of 60-GHz Wireless LAN on Indoor Open Environment Tatsuhiko Iwakuni, Daisei Uchida, Takuto Arai, Shuki Wai, Naoki Kita (NTT) RCS2023-137 |
Wireless communication system using high-frequency bands requires in-sight communication due to straightness of radio wa... [more] |
RCS2023-137 pp.39-44 |
AP, SANE, SAT (Joint) |
2023-07-14 10:10 |
Hokkaido |
The Citizen Activity Center (Primary: On-site, Secondary: Online) |
Characteristics Evaluation of Wideband Slot Array Antenna with Slitted Reflector by Prototype Measurement Yoshiki Ono, Takashi Hikage, Manabu Yamamoto (Hokkaido Univ.), Shuki Wai, Naoki Kita (NTT) AP2023-56 |
When the reflector is placed behind the broadband slot array antenna in order to make the radiation pattern of the anten... [more] |
AP2023-56 pp.139-144 |
RCS, SR, SRW (Joint) |
2023-03-03 15:50 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Simultaneous Beam Search with Multiple Distributed Antennas for Distributed Antenna System Shuki Wai, Takuto Arai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) RCS2022-295 |
Distributed antenna (DA) system using high-frequency bands such as millimeter-wave and sub-terahertz is expected to be o... [more] |
RCS2022-295 pp.249-254 |
SeMI, SeMI (Joint) |
2023-01-19 15:35 |
Tokushima |
Naruto grand hotel (Primary: On-site, Secondary: Online) |
[Short Paper]
Comparative Study of Object Localization by mmWave Sensing and Acoustic Wave Sensing Ryosuke Hanahara, Itsuki Yonemura, Koji Yamamoto (Kyoto Univ.), Takuto Arai, Shuki Hideki, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) SeMI2022-84 |
This paper compares sensing of indoor communication environments using the beam search method in millimeter-wave (mmWave... [more] |
SeMI2022-84 pp.54-56 |
SeMI, SeMI (Joint) |
2023-01-19 16:05 |
Tokushima |
Naruto grand hotel (Primary: On-site, Secondary: Online) |
[Short Paper]
Received SNR Prediction Using Two-sided Beam Search in mmWave Communication: An Experimental Study Itsuki Yonemura, Ryosuke Hanahara, Takamochi Kanda, Koji Yamamoto (Kyoto Univ.), Takuto Arai, Syuki Wai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) SeMI2022-87 |
This paper experimentally demonstrates a novel received signal-to-noise ratio (SNR) prediction based on a two-sided beam... [more] |
SeMI2022-87 pp.65-69 |
RISING (3rd) |
2022-10-31 10:30 |
Kyoto |
Kyoto Terrsa (Day 1), and Online (Day 2, 3) |
[Poster Presentation]
Blockage Prediction Using Transmit/Receive Beam-pairs in mmWave Networks Itsuki Yonemura, Takamochi Kanda, Ryosuke Hanahara, Koji Yamamoto (Kyoto Univ.), Takuto Arai, Shuki Wai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) |
This study experimentally demonstrates a novel blockage prediction based on exhaustive beam-pair scan in millimeter wav... [more] |
|
AP |
2022-04-15 11:50 |
Yamagata |
Yamagata Syokuryo Kaikan (Primary: On-site, Secondary: Online) |
A study on gain reduction suppression in a wideband slot array antenna with a reflector Naoya Yamamoto, Takashi Hikage, Manabu Yamamoto (Hokkaido Univ.), Shuki Wai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) AP2022-6 |
[more] |
AP2022-6 pp.28-33 |
RCS |
2021-10-21 13:00 |
Online |
Online |
Initial access beam search method with variable beam width according to the area size Takuto Arai, Tatsuhiko Iwakuni, Syuki Wai, Daisei Uchida, Naoki Kita (NTT) RCS2021-122 |
High gain antennas using narrow-beamforming are required to compensate for high propagation loss in high frequency bands... [more] |
RCS2021-122 pp.25-30 |
RCS |
2021-10-21 13:25 |
Online |
Online |
A New Beam Search Based on Combination History of Selected Beams among Antennas for Distributed Antenna System Shuki Wai, Tatsuhiko Iwakuni, Takuto Arai, Daisei Uchida, Naoki Kita (NTT) RCS2021-123 |
Distributed antenna system using high-frequency bands such as millimeter-wave and sub-terahertz is expected to be one of... [more] |
RCS2021-123 pp.31-36 |
RCS, AP (Joint) |
2018-11-20 10:25 |
Okinawa |
Okinawa Industry Support Center |
Design of Undesired-resonance Exclusion of a Degeneration-separated Hexagonal-cross-section Waveguide Circularly Polarized Aperture Antenna Shuki Wai, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2018-102 |
The corporate-feed waveguide slot array antenna is a high-efficiency and wide-band antenna in the millimeter-wave band. ... [more] |
AP2018-102 pp.5-8 |
AP, WPT (Joint) |
2018-01-19 15:30 |
Nara |
ATR |
A Configuration Method of the Feeding Circuit with Arbitrary Number of Division in a Cooperate-feed Waveguide Slot Array Antenna Shuki Wai, Takashi Tomura, Jiro Hirokawa (Tokyo Tech.) AP2017-171 |
The corporate-feed waveguide slot array antenna is a high-efficiency and wide-band antenna in the millimeter-wave band. ... [more] |
AP2017-171 pp.115-119 |