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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, MW (Joint) |
2014-09-19 16:00 |
Tokyo | Tokyo Institute of Technology, Ookayama Campus | [Invited Lecture]
Proposal of Beamwidth Adjustment Algorithm in Consideration of EBG for Dual-Band Antenna Employing Woodpile Metamaterial Reflector Hideya So, Atsuya Ando, Takatoshi Sugiyama (NTT)  AP2014-106 MW2014-97 |
We have proposed a multiband sector antenna with multiple reflectors mploying the metamaterial for a base station antenn... [more] | AP2014-106 MW2014-97 pp.71-76(AP), pp.65-70(MW) |
| SAT, RCS (Joint) |
2014-08-19 13:25 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Proposal of Frequency Compensation Method for Direct Spectrum Division Transmission
-- Applicable to Multiple Access -- Jun-ichi Abe, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2014-28 |
This paper introduces a frequency compensation method for multiple access in direct spectrum division transmission (DSDT... [more] | SAT2014-28 pp.15-19 |
| AP, SAT (Joint) |
2014-07-24 09:45 |
Gifu | Gero Citizen Hall | Path Loss Variation Characteristics at Sub-millimeter Wave Band in Street microcell environment Motoharu Sasaki, Wataru Yamada, Takatoshi Sugiyama (NTT), Tetsuro Imai (NTT DOCOMO) AP2014-48 |
In this paper, path loss variation characteristics in sub-millimeter wave band are analyzed based on measurement results... [more] | AP2014-48 pp.1-6 |
| AP, SAT (Joint) |
2014-07-25 14:10 |
Gifu | Gero Citizen Hall | Study of propagation channel Fading prediction algorithm Wataru Yamada, Motoharu Sasaki, Takatoshi Sugiyama (NTT), Oliver Holland, Hamid Aghvami (KCL) AP2014-67 SAT2014-20 |
Propagation channel fading prediction algorithms which are AR Models composed by 1st and 2nd order differential model wi... [more] | AP2014-67 SAT2014-20 pp.109-114(AP), pp.47-52(SAT) |
| RCS | 2014-06-18 10:05 |
Okinawa | Okinawa-ken Seinenkaikan (Naha) | Iterative Estimation Of Undesired Signal Power For Superposed Multicarrier Transmission With Channel Estimation Error Yohei Shibata, Naotoshi Yoda, Tomoaki Ohtsuki (Keio Univ.), Jun Mashino, Takatoshi Sugiyama (NTT) RCS2014-64 |
Superposed multicarrier transmission scheme is known to improve frequency utilization efficiency when several wireless s... [more] | RCS2014-64 pp.185-190 |
| SAT, WBS (Joint) |
2014-05-16 09:00 |
Aichi | Nagoya Institute of Technology | Proposal of a Dynamic Spectrum Controlled Satellite Channel Allocation Algorithm Katsuya Nakahira, Jun-ichi Abe, Jun Mashino, Takatoshi Sugiyama (NTT) SAT2014-7 |
[more] | SAT2014-7 pp.33-38 |
| RCS | 2014-04-18 13:00 |
Aichi | Nagoya Institute of Technology | System Throughput Improvement by Timeout Optimization for CSMA/CA based Wireless Network Coding Prototype Kazuki Maruta, Jun Mashino, Nobuaki Otsuki, Takatoshi Sugiyama (NTT) RCS2014-13 |
This paper reveals the system throughput improvement on CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)... [more] | RCS2014-13 pp.67-72 |
| RCS, SR, SRW (Joint) |
2014-03-03 15:50 |
Tokyo | Waseda Univ. | Blind Interference Suppression Scheme by Eigenvector Beamspace CMA Adaptive Array with Subcarrier Transmission Power Control Kazuki Maruta, Jun Mashino, Yuki Nakato, Takatoshi Sugiyama (NTT) RCS2013-343 |
In order to extend the operational Signal to Interference power Ratio (SIR) range of the blind adaptive arrays, we previ... [more] | RCS2013-343 pp.223-228 |
| RCS, SR, SRW (Joint) |
2014-03-05 11:15 |
Tokyo | Waseda Univ. | Interference Suppression Using EM Algorithm in OFDM Transmissions Naotoshi Yoda, Tomoaki Ohtsuki (Keio Univ.), Jun Mashino, Takatoshi Sugiyama (NTT) RCS2013-379 |
A superposed transmission is one of the effective wireless communication schemes to improve the radio frequency utilizat... [more] | RCS2013-379 pp.443-447 |
| SAT, SANE (Joint) |
2014-02-20 14:30 |
Yamaguchi | Hotel Kamefuku (Yamaguchi) | Modeling of effects on other satellites during transmission from a ship in maritime satellite communications Takahiro Aoyagi (Tokyo Inst. of Tech.), Kouhei Suzaki, Takatoshi Sugiyama (NTT) SAT2013-53 |
[more] | SAT2013-53 pp.17-21 |
| SAT, SANE (Joint) |
2014-02-20 14:55 |
Yamaguchi | Hotel Kamefuku (Yamaguchi) | Study on satellite tracking antenna control system using 2 axes drive mechanism for small-vessels Masazumi Ueba (Muroran Inst. of Tech.), Kouhei Suzaki, Takatoshi Sugiyama (NTT) SAT2013-54 |
Generally small vessels subject to waves move more easily compared to large vessels , of which space for a satellite tra... [more] | SAT2013-54 pp.23-28 |
| SAT, SANE (Joint) |
2014-02-21 09:25 |
Yamaguchi | Hotel Kamefuku (Yamaguchi) | A Proposal of Bandwidth Allocation Method using TCP Window Size to Improve Frequency Utilization for SATCOM Systems Hisayoshi Kano, Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2013-59 |
To improve frequency bandwidth utilization of SATCOM systems, this paper proposes a novel bandwidth allocation method us... [more] | SAT2013-59 pp.53-58 |
| AP | 2014-02-07 11:25 |
Aichi | Kojima Industries Corporation, Kojima Research Center | Propagation Characteristic Estimations of 2.4 GHz Inter-Car Wireless Links in High-Speed Train Cars in Railway Tunnel Takashi Hikage, Masami Shirafune, Toshio Nojima (Hokkaido univ.), Motoharu Sasaki, Wataru Yamada, Takatoshi Sugiyama (NTT) AP2013-180 |
[more] | AP2013-180 pp.81-84 |
| AP | 2014-02-07 13:40 |
Aichi | Kojima Industries Corporation, Kojima Research Center | [Invited Lecture]
Arrival Wave Characteristics of Horizontal and Vertical Plane Paths with Low Antenna Height in Residential Area Motoharu Sasaki, Wataru Yamada, Takatoshi Sugiyama (NTT) AP2013-183 |
[more] | AP2013-183 pp.97-102 |
| CS, OCS (Joint) |
2014-01-22 09:35 |
Tokyo | Hajijo-jima Ohgagou Kouminkan | Bandwidth Decomposition Transmission Control Method for Wireless Carrier Sense Multiple Access Systems Daisuke Murayama, Fusao Nuno, Takatoshi Sugiyama (NTT) CS2013-84 |
(Advance abstract in Japanese is available) [more] | CS2013-84 pp.1-6 |
| AP | 2014-01-24 11:45 |
Kagoshima | Hozan Hall (Kagoshima Prefectural Culture Center) | VHF Band Path Loss Model for Low Antenna Height in Residential Areas Motoharu Sasaki, Wataru Yamada, Takatoshi Sugiyama (NTT) AP2013-164 |
[more] | AP2013-164 pp.175-180 |
| SRW | 2013-12-16 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg | A coexistence scheme for wireless LAN and multiple wireless PANs Fumihiro Inoue, Takayuki Nishio, Masahiro Morikura, Koji Yamamoto (Kyoto Univ.), Fusao Nuno, Takatoshi Sugiyama (NTT) SRW2013-40 |
To operate IEEE 802.11g based wireless LANs (WLANs) and IEEE 802.15.4 based wireless personal area networks (WPANs) in t... [more] | SRW2013-40 pp.13-18 |
| RCS, AP (Joint) |
2013-11-22 09:20 |
Shimane | Matsue Terrsa | Iterative Decoding based on Interference Estimation in OFDM Transmissions Naotoshi Yoda, Tomoaki Ohtsuki (Keio Univ.), Jun Mashino, Takatoshi Sugiyama (NTT) RCS2013-194 |
A superposed transmission is one of the effective wireless communication schemes to improve the radio frequency utilizat... [more] | RCS2013-194 pp.117-121 |
| RCS, AP (Joint) |
2013-11-22 10:10 |
Shimane | Matsue Terrsa | Blind Adaptive Arrays Using Subcarrier Transmission Power Control Kazuki Maruta, Jun Mashino, Takatoshi Sugiyama (NTT) RCS2013-196 |
This paper extends the operational Signal to Interference power Ratio (SIR) range of the blind adaptive arrays by subcar... [more] | RCS2013-196 pp.129-134 |
| SAT | 2013-10-24 13:50 |
Fukuoka | IP CITY HOTEL Fukuoka | Dynamic Replication Control with Load Mitigation of Satellite Communication in Disruption-Tolerant Networks Asato Takahashi, Hiroki Nishiyama, Nei Kato (Tohoku Univ.), Katsuya Nakahira, Takatoshi Sugiyama (NTT) SAT2013-37 |
Satellite networks have gained much attention as a technique that provide reliable communication in an area without cell... [more] | SAT2013-37 pp.39-44 |
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