Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
CQ, CBE (Joint) |
2024-01-26 15:05 |
Kumamoto |
Kurokawa-Onsen (Primary: On-site, Secondary: Online) |
A Study of Handover Methods Considering Multipath Interference in a Mixed Network of Heterogeneous Base Stations Kakeru Hirata (NIT), Satoshi Ujigawa (KazimaTec), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT) CQ2023-69 |
[more] |
CQ2023-69 pp.94-99 |
OCS, OFT, IEE-CMN, ITE-BCT (Joint) [detail] |
2023-11-09 13:00 |
Kyoto |
(Primary: On-site, Secondary: Online) |
[Invited Talk]
Recent developments of infrastructure sensing in civil structures with embedded optical fiber sensor Yuichi Yoshimura, Kotaro Fujiwara, Ayaka Nasu, Michio Imai, Hideki Nagatani, Junichi Kawabata (Kajima) OFT2023-47 |
Distributed fiber optical sensing, which comprehensively detects deformations in civil structures, is applied to constru... [more] |
OFT2023-47 pp.1-4 |
OFT |
2023-10-12 10:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Application of distributed fiber-optic strain sensing to detection rock fracture Tianjun Zhang, Makito Kobayashi (UTokyo), Takumi Nakashima, Kotaro Fujiwara, Michio Imai, Hideki Nagatani, Yasuyuki Miyajima, Junichi Kawabata (KAJIMA), Hideaki Murayama (UTokyo) OFT2023-17 |
When excavating large underground cavities such as tunnels and underground power stations, there is a risk of rockfall d... [more] |
OFT2023-17 pp.7-10 |
MIKA (3rd) |
2023-10-10 15:35 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Study of drone handover method considering multipath interference outdoors Kakeru Hirata (NIT), Satoshi Ujigawa (KazimaTec), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT) |
[more] |
|
CQ, MIKA (Joint) (2nd) |
2023-08-30 15:00 |
Fukushima |
Tenjin-Misaki Sports Park |
[Poster Presentation]
Study of drone handover method suitable for multi path phasing in three dimensional environment Kakeru Hirata (NIT), Satoshi Ujigawa (Kajima Corporation), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT) |
[more] |
|
CS |
2023-07-27 11:24 |
Tokyo |
Hachijo-machi Chamber of Commerce and Industry |
Study on drone handover methods suitable for multipath interference due to obstacles Kakeru Hirata (NIT), Satisi Uzigawa (Kajima Corporation), Takahiro Matsuda (TMU), Jiro Hirokawa (TT), Tetsurou Imai (TDU), Takefumi Hiraguri (NIT) CS2023-36 |
[more] |
CS2023-36 pp.64-69 |
OFT |
2022-10-13 09:30 |
Kanagawa |
Kanagawa-Kenmin Center (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Dynamic strain measurement by OFDR employing high-speed wavelength-swept laser Ryota Ogu, Daiki Tanimura, Chao Zhang, Fumihiko Ito (Shimane Univ.), Yuichi Yoshimura, Hiroyuki Aoshika, Michio Imai (KAJIMA) OFT2022-23 |
We constructed an optical frequency domain reflectometry using a broadband, high-speed wavelength swept laser with a MEM... [more] |
OFT2022-23 pp.20-24 |
MIKA (3rd) |
2022-10-14 10:40 |
Niigata |
Niigata Citizens Plaza (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Evaluation of channel scanning schemes during handover considering communication quality Kakeru Hirata, Isamu Shitara (NIT), Satoshi Ujigawa (Kajima Corporation), Takefumi Hiraguri (NIT) |
[more] |
|
IA, CQ, MIKA (Joint) |
2022-09-15 16:25 |
Hokkaido |
Hokkaido Citizens Actives Center (Primary: On-site, Secondary: Online) |
Proposal of a Channel Scanning Scheme for Handover with Consideration of Communication Quality of Mobile Communication Stations Kakeru Hirata, Isamu Shitara (NIT), Satoshi Ujigawa (Kajima Corporation), Takefumi Hiraguri (NIT) CQ2022-35 |
[more] |
CQ2022-35 pp.62-66 |
CS |
2022-07-14 13:10 |
Kagoshima |
Yakushima Environmental and Cultural Village Center (Primary: On-site, Secondary: Online) |
A proposal for channel scanning scheme for handover in the drone's network Kakeru Hirata, Isamu Shitara (NIT), Satoshi Ujigawa (Kajima Corporation), Takefumi Hiraguri (NIT) CS2022-20 |
The construction of a network system to collect data and a system to extend the communication service area using drones ... [more] |
CS2022-20 pp.36-39 |
OFT |
2022-01-20 14:20 |
Online |
Online |
Civil Infrastructure Monitoring by Cutting Edge of Optical Fiber Sensor
-- High speed and high precision distributed optical fiber sensor -- Michio Imai, Junichi Kawabata, Yohei Taira, Hideki Nagatani (Kajima) OFT2021-58 |
The paper provides that the features of recent developed Rayleigh-based distributed optical fiber strain sensor, and the... [more] |
OFT2021-58 pp.17-20 |
KBSE |
2020-03-06 13:00 |
Okinawa |
Tenbusu-Naha (Cancelled but technical report was issued) |
KBSE2019-46 |
(To be available after the conference date) [more] |
KBSE2019-46 pp.1-6 |
RCS, NS (Joint) |
2010-07-15 11:10 |
Hokkaido |
Abashiri Public Auditorium |
Cross-Layer Multi-Hop Packet Transmission Scheme incorporating Route-Shortcut and Bypass Functions Yasushi Yamao (Univ. of Electro-Comm.), Yutaro Kida (Tokyo Inst. of Tech.), Yusuke Kadowaki (Kajima Corp.) RCS2010-53 |
Multi-hop wireless ad hoc networks suffer from temporary link error due to fading. In order to improve packet transmissi... [more] |
RCS2010-53 pp.31-36 |
MW |
2010-05-14 11:50 |
Hyogo |
University of Hyogo |
A Waveguide Power Divider Mechanical-Controlling Dividing Ratio With Low Insertion Loss Minoru Sanagi, Munehiro Koji, Shigeji Nogi (Okayama UNiv.), Ken-ichi Hamamoto, Naoki Niwa, Kenji Takagi (Kajima Co.) MW2010-25 |
Loss reduction of a power divider mechanical-controlling dividing ratio has been investigated. The divider consists of a... [more] |
MW2010-25 pp.59-64 |
ED, LQE, CPM |
2009-11-20 15:25 |
Tokushima |
Univ. of Tokushima (Josanjima Campus, Kogyo-Kaikan) |
Development of GaN Schottky Diodes for Microwave Wireless Ubiquitous Power Distribution Kensuke Takahashi, Jin-Ping Ao (Tokushima Univ.), Naoki Shinohara (Kyoto Univ.), Naoki Niwa (Kajima Corp.), Teruo Fujiwara (Sho Engineering Corp.), Yasuo Ohno (Tokushima Univ.) ED2009-158 CPM2009-132 LQE2009-137 |
For microwave power rectification circuits(rectenna), high power, high conversion efficiency and compact size rectifying... [more] |
ED2009-158 CPM2009-132 LQE2009-137 pp.145-150 |
USN, IPSJ-UBI |
2009-07-16 10:00 |
Kyoto |
ATR (Kyoto) |
Analyzing the Error Propagation of Time Synchronization in Wireless Sensor Networks Makoto Suzuki, Sotaro Ohara, Shunsuke Saruwatari (Tokyo Univ.), Narito Kurata (Kajima), Masateru Minami, Hiroyuki Morikawa (Tokyo Univ.) USN2009-15 |
In this paper, we present an analysis on the error propagation of time synchronization in multi-hop wireless sensor netw... [more] |
USN2009-15 pp.19-24 |
MW |
2009-05-28 10:30 |
Okayama |
Okayama Univ. |
A Waveguide Power Divider Mechanical-Controlling Dividing Ratio for Microwave Power Distribution System in Buildings Minoru Sanagi, Munehiro Koji (Okayama Univ.), Hiroshi Hamashima (Okayama Univ./Mitsubishi), Shigeji Nogi (Okayama Univ.), Ken-ichi Hamamoto, Naoki Niwa, Kenji Takagi (Kajima Corp.), Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) MW2009-9 |
A power divider mechanical-controlling dividing ratio for the microwave power distribution system in buildings has been ... [more] |
MW2009-9 pp.1-6 |
USN, MoNA (Joint) |
2009-01-23 16:10 |
Aichi |
Nagoya Institute of Technology (Auditorium) |
High-Fidelity Synchronized Sampling on Wireless Sensor Networks for Earthquake Monitoring Makoto Suzuki, Shunsuke Saruwatari (The University of Tokyo), Narito Kurata (Kajima Corp.), Masateru Minami, Hiroyuki Morikawa (The University of Tokyo) USN2008-91 |
This paper addresses the problem of sampling jitter on a wireless sensor network for earthquake monitoring. Since the ea... [more] |
USN2008-91 pp.167-172 |
USN, CQ, MoNA (Joint) |
2008-01-25 10:05 |
Shizuoka |
Kenshu Kouryu Center, Actcity Hamamatsu (Shizuoka) |
Implementation and Evaluation of Earthquake Monitoring System Using Wireless Sensor Networks Makoto Suzuki (The University of Tokyo), Narito Kurata (Kajima Corp.), Shunsuke Saruwatari, Hiroyuki Morikawa (The University of Tokyo) USN2007-66 |
[more] |
USN2007-66 pp.65-70 |
USN |
2007-05-24 15:20 |
Tokyo |
Tokyo Denki University |
[Invited Talk]
Applications of Ubiquitous Sensor Networks for Architecture and Urban Space Narito Kurata (Kajima Corp.) USN2007-5 |
It is expected that utilization of Ubiquitous Sensor Network(USN) technology will play an important role toward realizin... [more] |
USN2007-5 pp.19-24 |