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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| NS, IN, CS, NV (Joint) |
2019-09-06 14:30 |
Miyagi | Research Institute of Electrical Communication, Tohoku Univ. | A Study on Performance of TCP BBR and CUBIC TCP over 5G Network Tomoaki Kanaya (Kogakuin Univ.), Takao Okamawari, Nobuo Tabata (Softbank), Saneyasu Yamaguchi (Kogakuin Univ.)  NS2019-92 |
(To be available after the conference date) [more] | NS2019-92 pp.19-24 |
| IA, SITE, IPSJ-IOT [detail] | 2018-03-06 14:20 |
Tochigi | Kinugawa Onsen Hotel | Accuracy of Clock Synchronization in IEEE1588 where Boundary Clock and Synchronous Ethernet are Combined Koki Horita (Keio Univ.), Shota Shiobara, Takao Okamawari, Yoichi Goto (Softbank), Fumio Teraoka, Kunitake Kaneko (Keio Univ.) SITE2017-78 IA2017-89 |
[more] | SITE2017-78 IA2017-89 pp.233-238 |
| MoNA, ASN, IPSJ-MBL, IPSJ-UBI [detail] | 2017-03-10 14:30 |
Tokyo | University of Tokyo (Hongo Campus) | An Available Bandwidth Estimation Method for Mobile Networks Shota Shiobara, Takao Okamawari (SoftBank Corp.) MoNA2016-47 |
Recently, mobile traffic is increasing exponentially due to the popularity of mobile devices. Therefore, the available b... [more] | MoNA2016-47 pp.301-307 |
| IA, SITE, IPSJ-IOT [detail] | 2017-03-03 13:50 |
Okinawa | Culture Resort Festone (Okinawa) | Verification of Precise of Clock Synchronization using IEEE 1588 in Network Composed of Ordinary Routers Koki Horita (Keio Univ.), Shota Shiobara, Takao Okamawari (Softbank), Fumio Teraoka, Kunitake Kaneko (Keio Univ.) SITE2016-62 IA2016-92 |
In these days, demands for highly precise clock synchronization have been increasing. IEEE1588 (PTP), which aims for sub... [more] | SITE2016-62 IA2016-92 pp.13-18 |
| NS, RCS (Joint) |
2016-12-21 11:35 |
Ishikawa | Development of Network-Listening Time Synchronization method for Layered cell control architecture in a dense 3D cell structure Yasuhiro Nagai, Shota Shiobara, Takao Okamawari, Teruya Fujii (Softbank Corp.) RCS2016-212 |
HetNet (heterogeneous network) is currently studied in 3GPP to meet with rapid increase of mobile traffic. HetNet is def... [more] | RCS2016-212 pp.29-34 |
|
| SR, SRW (Joint) |
2016-05-16 14:30 |
Overseas | Hotel Lasaretti, Oulu, Finland | [Poster Presentation]
Layered Cell Configuration for 3D Dense Cell Structure Atsushi Nagate, Manabu Mikami, Takao Okamawari, Teruya Fujii (SoftBank) SR2016-5 SRW2016-5 |
[more] | SR2016-5 SRW2016-5 pp.15-20 |
| RCS, CCS, SR, SRW (Joint) |
2016-03-04 13:40 |
Tokyo | Tokyo Institute of Technology | Distributed control architecture for multi-cell coordinated MU-MIMO using simple Interference Cancel method Shota Shiobara, takao okamawari, teruya fujii (Softbank) RCS2015-392 |
CoMP-JT (Coordinated Multiple Point Joint Transmission) is a technology to improve the cell-edge performance in LTE-Adva... [more] | RCS2015-392 pp.345-350 |
| RCS | 2015-10-01 15:15 |
Kanagawa | YRP (Yokosuka) | [Invited Lecture]
A perspective on 5G and activities towards 5G Hitoshi Yoshino, Manabu Mikami, Atsushi Nagate, Takao Okamawari, Teruya Fujii (Softbank) RCS2015-171 |
5th Generation mobile communication systems are being studied in order to efficiently support a wide variety of highly s... [more] | RCS2015-171 pp.77-81 |
| RCS, SR, SRW (Joint) |
2015-03-04 13:35 |
Tokyo | Tokyo Institute of Technology | Field evaluation of base station synchronization method using GPS to realize eICIC for LTE-Advanced Shota Shiobara, Yasuhiro Nagai, Takao Okamawari, Teruya Fujii (SoftBank Mobile Corp.) RCS2014-316 |
HetNet (heterogeneous networks) is studied intensively to meet with the explosive mobile traffic increase. HetNet is def... [more] | RCS2014-316 pp.89-94 |
| RCS, SR, SRW (Joint) |
2015-03-04 16:15 |
Tokyo | Tokyo Institute of Technology | Layered cell control architecture over inter base-station interface in a dense 3D cell structure Takao Okamawari, Atsushi Nagate, Teruya Fujii (softbank mobile) RCS2014-322 |
HetNet (heterogeneous network) is currently studied in LTE-Advanced to meet with the explosive increase of mobile traffi... [more] | RCS2014-322 pp.123-128 |
| IN, NV (Joint) |
2014-07-18 10:35 |
Hokkaido | Hokkaido Univ. | High-precise Delay Measurements of Prioritized Packets in Network Equipments Takahisa Sekiguchi (Keio Univ.), Liang Zhang, Takao Okamawari (SOFTBANK MOBILE), Fumio Teraoka, Kunitake Kaneko (Keio Univ.) IN2014-42 |
Highly precise time synchronization via network is required. Among various causes that make the precision of time synchr... [more] | IN2014-42 pp.71-76 |
| PN, NS, OCS (Joint) |
2014-06-27 13:30 |
Oita | B-ConPlaza | High-Precise Jitter Measurements of Network Equipments fot Time Synchronization Takahisa Sekiguchi (Keio Univ.), Liang Zhang, Takao Okamawari (SOFTBANK MOBILE), Fumio Teraoka, Kunitake Kaneko (Keio Univ.) NS2014-41 |
Highly precise time synchronization via network is required. There are various causes that make the precision of time sy... [more] | NS2014-41 pp.11-16 |
| RCS, SR, SRW (Joint) |
2014-03-03 13:00 |
Tokyo | Waseda Univ. | A Study on Network-Based Coordinated Interference Control in 3D Cell Structure with eICIC Atsushi Nagate, Manabu Mikami, Takao Okamawari, Teruya Fujii (Softbank Mobile) RCS2013-322 |
[more] | RCS2013-322 pp.97-102 |
| RCS, SR, SRW (Joint) |
2014-03-03 14:00 |
Tokyo | Waseda Univ. | Network control architecture for base station coordination in eICIC based 3D cell structure Takao Okamawari, Liang Zhang, Teruya Fujii (Softbank Mobile) RCS2013-325 |
[more] | RCS2013-325 pp.115-120 |
| RCS, SR, SRW (Joint) |
2014-03-03 14:20 |
Tokyo | Waseda Univ. | A study on transmission delay improvement over inter-BS network in eICIC based 3D cell structure Daisuke Maeda, Liang Zhang, Takao Okamawari, Teruya Fujii (SoftBank Mobile) RCS2013-326 |
In LTE-Advanced (Long Term Evolution-Advanced), HetNet (heterogeneous network) is studied intensively for the explosive ... [more] | RCS2013-326 pp.121-126 |
| RCS, SR, SRW (Joint) |
2013-02-28 11:10 |
Tokyo | Waseda Univ. | Field Experiment of the Network Control Architecture for CoMP JT over X2 Yasuhiro Nagai, Liang Zhang, Takao Okamawari, Teruya Fujii (Softbank Mobile) RCS2012-329 |
CoMP JT (Coordinated Multiple Point Joint Transmission) is one of the key technologies in LTE-Advanced to improve the ce... [more] | RCS2012-329 pp.273-278 |
| SR, RCS, SRW (Joint) |
2012-03-08 09:00 |
Kanagawa | YRP | Analysis of End-to-End Transmission Delay for LTE Yasuhiro Nagai, Liang Zhang, Takao Okamawari, Teruya Fujii (SBM) RCS2011-337 |
LTE (Long Term Evolution) allows us to provide low delay IP services. The delay performance may be degraded due to the l... [more] | RCS2011-337 pp.127-132 |
| AP, RCS (Joint) |
2011-11-17 09:35 |
Aichi | Nagoya Congress Center | Performance Evaluation of TCP and UDP during LTE Handover Liang Zhang, Takao Okamawari, Teruya Fujii (Softbank Mobile Corps) RCS2011-207 |
LTE (Long Term Evolution) is expected as a next generation mobile system which can provide better communication quality ... [more] | RCS2011-207 pp.109-114 |
| RCS, NS (Joint) |
2011-07-21 13:05 |
Hokkaido | Asahikawa Civic Culture Hall | Evaluation of communication quality over LTE by field experiment Liang Zhang, Baoshan Yan, Takao Okamawari, Hideki Hayashi, Teruya Fujii (SBM) RCS2011-83 |
LTE is expected as a next generation mobile system which can provide better communication quality (Higher transmission t... [more] | RCS2011-83 pp.49-54 |
| RCS, NS (Joint) |
2011-07-21 13:25 |
Hokkaido | Asahikawa Civic Culture Hall | Cooperative control for multiple base stations in an environment consisting of various cell sizes Teruya Fujii, Hideki Hayashi, Takao Okamawari, Manabu Mikami (SBM) RCS2011-84 |
[more] | RCS2011-84 pp.55-60 |
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