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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS | 2017-06-21 13:50 |
Okinawa | Ishigaki Shoukou Kaikan | Efficient Radio Access for Massive Machine-Type Communication
-- An Interference Cancellation and Suppression Technique Employing Selection Combining Diversity in Frequency Domain -- Masafumi Moriyama, Kenichi Takizawa, Hayato Tezuka, Masayuki Oodo, Changwoo PYO, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT)  RCS2017-52 |
A rapid increase of uplink traffic is predicted with the spread of Internet of Things (IoT). The 5th generation mobile c... [more] | RCS2017-52 pp.13-18 |
| SR | 2017-05-25 13:50 |
Tokyo | Tokyo big sight | Coordinated Management of Multiple Wireless Networks and Spectrum Sharing toward The Fifth Generation Mobile Communication Systems Kentaro Ishizu, Homare Murakami, Kazuo Ibuka, Fumihide Kojima (NICT) SR2017-7 |
[more] | SR2017-7 pp.39-46 |
| SR | 2017-05-26 10:00 |
Tokyo | Tokyo big sight | [Technology Exhibit]
Prototype of USIM Sharing Terminal Enabling Simultaneous Use of Multiple Networks during International Roaming in Next-Generation Mobile Communication System Kazuo Ibuka, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2017-11 |
The frequency used in the mobile communication system typified by LTE (Long Term Evolution) is diversified. Therefore, i... [more] | SR2017-11 pp.59-65 |
| RCS | 2017-04-24 11:20 |
Kagawa | Kotohira Onsen Kotosankaku | Efficient Radio Access for Massive Machine-Type Communication
-- Studies of Successive Interference Cancellation and Parallel Interference Cancellation -- Masafumi Moriyama, Kenichi Takizawa, Hayato Tezuka, Masayuki Oodo, Changwoo Pyo, Homare Murakami, Kentaro Ishidu, Fumihide Kojima (NICT) RCS2017-5 |
A rapid increase of uplink traffic is predicted with the spread of IoT (Internet of Things) devices. The 5G (5th generat... [more] | RCS2017-5 pp.23-28 |
| RCS, SR, SRW (Joint) |
2017-03-01 13:10 |
Tokyo | Tokyo Institute of Technology | A study of base station sharing method among multiple operators considering ratio of utilization Homare Murakami (NICT/Univ. of Tokyo), Hirokazu Sawada, Kentaro Ishizu, Fumihide Kojima (NICT), Hiroyuki Morikawa (Univ. of Tokyo) SR2016-91 |
Micro cell base stations introduced to 5G mobile systems cannot provide wide coverage area because of its propagation ch... [more] | SR2016-91 pp.1-8 |
| SR | 2016-10-27 15:00 |
Osaka | Osaka Univ. Nakanoshima Center | [Technology Exhibit]
Prototype of IEEE 802.11af-based Baseband IC
-- Towards Practical Device for TV White-spaces Communication -- Takeshi Matsumura, Kazuo Ibuka, Homare Murakami, Kentaro Ishizu, Hiroshi Harada, Fumihide Kojima (NICT) SR2016-63 |
Since the FCC stated a policy on unlicensed use of the TV white-spaces (TVWS) in November 2008, a number of countries an... [more] | SR2016-63 pp.39-46 |
| RCS | 2016-10-20 16:40 |
Kanagawa | YRP (Yokosuka) | [Invited Talk]
NICT's R&D on Next Generation Mobile Communication Systems Kentaro Ishizu, Homare Murakami, Fumihide Kojima (NICT) RCS2016-173 |
[more] | RCS2016-173 p.111 |
| RCS | 2016-10-21 10:00 |
Kanagawa | YRP (Yokosuka) | Efficient Radio Access for Massive Machine-Type communication
-- Basic studies of Frame Structure and Channel Estimation -- Masafumi Moriyama, Hayato Tezuka, Kenichi Takizawa, Masayuki Oodo, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) RCS2016-175 |
5G (5th generation mobile communications systems) has been researched and developed so that it can be deployed in Japan ... [more] | RCS2016-175 pp.119-124 |
| RCS | 2016-10-21 10:25 |
Kanagawa | YRP (Yokosuka) | Efficient Radio Access for Massive Machine-Type Communication
-- Interference Suppression and Cancellation Technique -- Kenichi Takizawa, Masafumi Moriyama, Hayato Teduka, Masayuki Oodo, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) RCS2016-176 |
[more] | RCS2016-176 pp.125-130 |
| SR | 2016-01-22 14:45 |
Nagasaki | Fukue-bunka-kaikan | Indoor Field Experiment based on IEEE 802.11af System in Singapore TV White-space Takeshi Matsumura, Hoang Vinh Dien, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2015-88 |
Mobile data traffic is continuously increasing at a pace of about 1.7 times per year and estimated to reach a thousand t... [more] | SR2015-88 pp.109-114 |
| SR, SRW (Joint) |
2015-10-27 09:30 |
Tokyo | KKE | [Technology Exhibit]
TV White-space Vehicle Communication System in Singapore based on LTE Technology Takeshi Matsumura, Kazuo Ibuka, Vihn Dien Hoang, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) SR2015-56 SRW2015-37 |
The authors have developed vehicle communication system utilizing the TV white-spaces (TVWS) in Singapore by using the p... [more] | SR2015-56 SRW2015-37 pp.37-40 |
| RCS | 2015-10-02 16:50 |
Kanagawa | YRP (Yokosuka) | [Invited Lecture]
An Approach of R&D to Realize the Fifth Generation Mobile System at NICT Kentaro Ishizu, Homare Murakami, Takeshi Matsumura, Fumihide Kojima (NICT) RCS2015-189 |
The fifth generation mobile communications system (5G system) has significant requirements compared with the performance... [more] | RCS2015-189 pp.167-172 |
| SRW | 2015-06-15 14:15 |
Kanagawa | Fujitsu | Development of path loss and throughput estimation models using IEEE 802.11af Prototypes Hirokazu Sawada, Keiichi Mizutani, Kentaro Ishizu, Takeshi Matsumura, Ha-Nguyen Tran, Homare Murakami, Fumihide Kojima (NICT), Hiroshi Harada (Kyoto Univ.) SRW2015-4 |
[more] | SRW2015-4 pp.19-25 |
| SR | 2015-05-28 13:50 |
Hyogo | Akashi-Sangyou-Koryu-Center | Prototype of IEEE 802.11af-based High Power Communication Devices and Field Experiment in London Takeshi Matsumura, Kentaro Ishizu (NICT), Keiichi Mizutani (Kyoto Univ.), Homare Murakami, Fumihide Kojima (NICT), Hiroshi Harada (Kyoto Univ.) SR2015-3 |
TV white-space (TVWS) communication systems have been globally researched and developed due to its wide frequency range ... [more] | SR2015-3 pp.13-18 |
| RCS, SR, SRW (Joint) |
2015-03-05 10:50 |
Tokyo | Tokyo Institute of Technology | A study of scheduling scheme on whitespace LTE Homare Murakami (NICT/Univ. of Tokyo), Kentaro Ishizu, Kazuo Ibuka, Takeshi Matsumura, Fumihide Kojima, Hiroyuki Yano (NICT), Mikio Hasegawa (Tokyo Univ. of Science/NICT), Hiroshi Harada (Kyoto Univ./NICT), Hiroyuki Morikawa (Univ. of Tokyo) RCS2014-341 |
We have studied an optimization scheme of the parameters, e.g. duplex mode and TDD up-link and down-link ratio, to implr... [more] | RCS2014-341 pp.237-242 |
| SR | 2015-01-30 11:30 |
Hokkaido | KKR Hakodate | A Study on Multiple Frequency Bands Utilization for Fifth Generation Mobile Communication Systems Kentaro Ishizu, Homare Murakami, Fumihide Kojima, Hiroyuki Yano (NICT) SR2014-107 |
[more] | SR2014-107 pp.81-88 |
| AP, RCS (Joint) |
2014-11-12 16:25 |
Yamagata | Yamagata University, Yonezawa Campus | Resource Allocation and Cell Association Algorithms for Inter-Operator Spectrum and Infrastructure Sharing in Heterogeneous Network Kei Inage, Keiichi Mizutani, Homare Murakami, Kentaro Ishizu, Fumihide Kojima (NICT) RCS2014-206 |
In 5th generation mobile communication systems, shot range communication through higher frequency band is key technology... [more] | RCS2014-206 pp.55-60 |
| AP, RCS (Joint) |
2014-11-13 09:25 |
Yamagata | Yamagata University, Yonezawa Campus | White-space LTE System in the UK Digital Terrestrial TV Band (1)
-- Development and Field Experiment of WSD Operational Environment cooperated with WSDB -- Kazuo Ibuka, Takeshi Matsumura, Kentaro Ishizu, Homare Murakami, Fumihide Kojima (NICT), Hiroshi Harada (Kyoto Univ.) RCS2014-208 |
Utilization of the TV white-spaces (TVWS), which are spatially or temporally unused frequency in TV bands, is promising ... [more] | RCS2014-208 pp.67-72 |
| 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 | 2014-10-17 13:30 |
Kanagawa | Keio Univ. | [Invited Lecture]
R&D of White Space LTE System Homare Murakami (NICT/Univ. of Tokyo), Kentaro Ishizu, Kazuo Ibuka, Takeshi Matsumura (NICT), Hiroshi Harada (Kyoto Univ./NICT) RCS2014-185 |
[more] | RCS2014-185 pp.163-167 |
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