Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
AP |
2023-02-17 11:50 |
Miyagi |
Tohoku University, Aobayama Campus (Primary: On-site, Secondary: Online) |
Development of Sub-6 GHz Double-Directional Radio Channel Sounder and Urban Cellular Channel Measurement Results Minseok Kim, Tsukada Hibiki, Riku Takahashi, Naoya Suzuki, Hino Issei (Niigata Univ.), Hirokazu Sawada, Takeshi Matsumura (NICT) AP2022-225 |
In recent years, usage scenarios have diversified with the development of wireless communication technology. The importa... [more] |
AP2022-225 pp.157-162 |
SR |
2022-11-07 15:30 |
Fukuoka |
Fukuoka University (Primary: On-site, Secondary: Online) |
[Technology Exhibit]
5D spectrum database Hirofumi Nakajo, Yusuke Itayama, Shougo Matsuo, Takeo Fujii (UEC) SR2022-56 |
A key issue in the research and development of next-generation mobile communication systems (Beyond 5G/6G) is the availa... [more] |
SR2022-56 pp.58-63 |
NS, IN, CS, NV (Joint) |
2022-09-01 10:00 |
Iwate |
MALIOS (Iwate Prefecture) + Online Meeting (Primary: On-site, Secondary: Online) |
[Encouragement Talk]
A Distributed Push-Sum Based Deployment Method for Aerial Base Stations with RF Energy Harvesting Shunya Kida, Tatsuaki Kimura, Tetsuya Takine (Osaka Univ.) NS2022-60 |
Aerial base stations (ABSs) using unmanned aerial vehicle (UAV) have been gaining attention in recent years for improvin... [more] |
NS2022-60 pp.1-6 |
RCS, SR, SRW (Joint) |
2021-03-04 11:35 |
Online |
Online |
[Poster Presentation]
Radio Propagation Prediction Using Building Information in Radio Environment Map for Smart Meters Soraya Mitate, Takeo Fujii (UEC) RCS2020-237 SR2020-76 SRW2020-66 |
In recent years, smart metering systems that efficiently control household resources such as water, electricity, and gas... [more] |
RCS2020-237 SR2020-76 SRW2020-66 pp.163-164(RCS), pp.56-57(SR), pp.51-52(SRW) |
ASN, NS, RCS, SR, RCC (Joint) |
2018-07-12 10:20 |
Hokkaido |
Hakodate Arena |
Experimental Verification of Frequency-Correlation of Radio Propagation Characteristics for Radio Environment Recognition Keita Onose (UEC), Koya Sato (TUS), Kei Inage (TMCIT), Takeo Fujii (UEC) SR2018-32 |
Spectrum sharing with cognitive radio has attracted attention to solve the shortage of spectrum resources. In order to r... [more] |
SR2018-32 pp.73-78 |
MoNA, IPSJ-MBL, IPSJ-DPS, IPSJ-ITS |
2017-06-01 12:15 |
Okinawa |
Chatan-cho Mihama MS |
A Study of Handover Reduction based on Moving Direction and Velocity of Users for 5G Multi-layered Networks Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura (NTT DOCOMO) MoNA2017-3 |
In forthcoming fifth-generation (5G) radio access networks, Radio Access Technology (RAT) or cell layer, which represent... [more] |
MoNA2017-3 pp.61-66 |
RCS |
2017-04-25 13:05 |
Kagawa |
Kotohira Onsen Kotosankaku |
A Study of Handover Reduction considering Moving Direction of UE for 5G Multi-layered Networks with Overlay Structure Akira Kishida, Yoshifumi Morihiro, Takahiro Asai, Yukihiko Okumura (NTT DOCOMO) RCS2017-22 |
In forthcoming fifth-generation (5G) radio access networks, Radio Access Technology (RAT) or cell layer, which represent... [more] |
RCS2017-22 pp.113-118 |
AP |
2017-03-17 10:55 |
Iwate |
Iwate Univ. |
A Study on Indoor Radio Propagation Employing Multiband Simultaneous Transmission Yuki Terashima, Aya Hashimoto, Akinobu Kodama, Masayuki Suto, Yasuharu Amezawa, Shinichi Sato (Mobile Techno Corp.) AP2016-193 |
The spectrum shortage of the industrial, scientific and medical radio bands is concerned, since the utilization of Inter... [more] |
AP2016-193 pp.87-92 |
SR |
2015-05-28 15:15 |
Hyogo |
Akashi-Sangyou-Koryu-Center |
Rario Environment Statistical Recognition Based on State Transition Model with Considering of Intersystem Interference in Spectrum Sharing Scenarios Hirofumi Sasaki, Takayuki Yamada, Jun Mashino, Takatoshi Sugiyama (NTT) SR2015-6 |
In heterogeneous wireless networks with spectrum sharing, radio wave collisions often occur randomly by not only intra-s... [more] |
SR2015-6 pp.31-38 |
AP, RCS (Joint) |
2014-11-13 09:50 |
Yamagata |
Yamagata University, Yonezawa Campus |
White-space LTE System in UK Digital Terrestrial TV Band (2)
-- Specification and Evaluation of White-space Devices for Interference Avoidance -- Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Fumihide Kojima (NICT), Hiroshi Harada (Kyoto Univ.) RCS2014-209 |
For further efficient use of spectrum resource, possibilities of white-spaces communication technology have been discuss... [more] |
RCS2014-209 pp.73-78 |
RCS |
2014-06-18 15:00 |
Okinawa |
Okinawa-ken Seinenkaikan (Naha) |
Development of Smart Phone for TVWS LTE Communication System Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Hiroshi Harada (NICT) RCS2014-75 |
Recently, a communication technology utilizing white-spaces has been expected as one of solutions for a frequency resour... [more] |
RCS2014-75 pp.251-256 |
RCS, SIP |
2014-01-23 16:05 |
Fukuoka |
Kyushu Univ. |
TDD/FDD Dual Mode LTE Communication System for TV White-spaces (1)
-- Development of Base Station and Small-size Terminal with USB Interface -- Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Hiroshi Harada (NICT) SIP2013-99 RCS2013-269 |
Recently, the frequency resource shortage problem has been aggravated in cellular system due to the growth of service or... [more] |
SIP2013-99 RCS2013-269 pp.83-88 |
IA, SITE, IPSJ-IOT [detail] |
2013-03-14 14:25 |
Nara |
Todaiji Total Cultural Center |
Channel switching-aware TCP for cognitive radio mobile ad hoc networks Shun Koba, Kazuya Tsukamoto, Masato Tsuru, Yuji Oie (Kyushu Inst. of Tech.) SITE2012-54 IA2012-92 |
With the proliferation of new wireless service, a scarcity of wireless resources will arise and become a critical issue.... [more] |
SITE2012-54 IA2012-92 pp.79-84 |
RCS, SR, SRW (Joint) |
2013-02-27 15:35 |
Tokyo |
Waseda Univ. |
Wideband Signal Detection Characteristics of Spectrum Detector with Nonlinearity Toshiki Ogawa, Takuma Yamashita, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science), Osamu Takyu (Shinsyu Univ.) SR2012-91 |
Cognitive radio is considered as the highly promising solution to the shortage problem of the frequency resource. A spec... [more] |
SR2012-91 pp.45-52 |
SR |
2013-01-25 11:50 |
Nagano |
Shinshu Univ. |
Two-stage available channel estimation method using logit model Kazuhisa Okamoto, Takeo Fujii (UEC), Hirokazu Tajima (TKU) SR2012-80 |
As developing cognitive radio technologies, the research for sharing the frequency resources assigned to primary user by... [more] |
SR2012-80 pp.53-58 |
NS, IN (Joint) |
2012-03-09 14:10 |
Miyazaki |
Miyazaki Seagia |
Evaluation of Longcut Route Navigation based on Actual Throughput Performances of Wireless LANs Kenji Kanai, Yuri Akamatsu, Jiro Katto (Waseda Univ.), Tutomu Murase (NEC) NS2011-265 |
The demand for access to communication while in transit is increasing, especially among mobile device users. Previous ou... [more] |
NS2011-265 pp.487-492 |
SR |
2012-01-27 10:50 |
Kagoshima |
Kagoshima |
Control Channel Selection Method for Improving Channel Efficiency in Cognitive Radio Systems Mai Ohta (UEC), Sean Rocke, Jingkai Su, Alexander M. Wyglinski (WPI), Takeo Fujii (UEC) SR2011-94 |
In order to share the spectrum in a cognitive radio system, it is important not only that a secondary user recognizes su... [more] |
SR2011-94 pp.101-106 |
RCS, MoNA, SR (Joint) |
2011-03-02 17:00 |
Kanagawa |
YRP |
IEEE P1900.6 Interface Implementation Design Study for Cognitive Radio Platforms Stefan Aust, Akira Matsumoto, Tetsuya Ito (NEC Comm Systems, Ltd., Labs) SR2010-99 |
Future wireless radio systems will support a flexible and more efficient use of wireless resources. Cognitive radio syst... [more] |
SR2010-99 pp.77-82 |
SR |
2009-07-29 13:00 |
Tokyo |
Tokyo institute of technology |
[Technology Exhibit]
Test-bed of Cooperative Heterogeneous Radio Networks for Reliability Enhancements Akira Yamaguchi, Takashi Fujimoto, Tadayuki Fukuhara, Feng Lu, Kanshiro Kashiki, Toshinori Suzuki (KDDI R&D Labs.) SR2009-28 |
We have recently serious lack of frequency resources which is less than 6GHz. One solution is an application of the hete... [more] |
SR2009-28 pp.37-42 |
SR |
2007-11-27 15:15 |
Hiroshima |
Hirishima international univ. |
Study on Inter-Base Station Beam Switching Considering Asymmetric Broadband Transmission in Cognitive Radio Satoshi Imata, Kanshiro Kashiki, Mitsuo Nohara (KDDI R&D) SR2007-62 |
The authors have considered applying cognitive radio for an efficient use of frequency resource over multiple radio link... [more] |
SR2007-62 pp.105-111 |