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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SR, SRW (Joint) |
2019-03-08 10:15 |
Kanagawa | YRP | [Invited Lecture]
3GPP study on 5G NR based access to unlicensed spectrum Hiroki Harada, Daisuke Murayama, Satoshi Nagata (NTT DOCOMO)  SRW2018-70 |
In the future radio access network, since newly available spectrum in the lower frequency bands, which have traditionall... [more] | SRW2018-70 pp.61-65 |
| RCC, ASN, NS, RCS, SR (Joint) |
2014-08-01 13:25 |
Kyoto | Kyoto Terrsa | Resource allocation scheme for device to device discovery in LTE-Advanced Shinpei Yasukawa (NTT DOCOMO), Qun Zhao, Yongbo Zeng (DOCOMO Beijing Lab.), Hiroki Harada, Satoshi Nagata, Takehiro Nakamura (NTT DOCOMO) RCS2014-132 |
[more] | RCS2014-132 pp.233-238 |
| RCS, SR, SRW (Joint) |
2014-03-04 15:10 |
Tokyo | Waseda Univ. | [Invited Talk]
Outline of 3GPP Small Cell Enhancement and Further Sophistication for Future Deployment Hiroki Harada, Kazuaki Takeda, Satoshi Nagata, Yoshihisa Kishiyama, Takehiro Nakamura (NTT DOCOMO) RCS2013-360 SR2013-113 SRW2013-54 |
In the future radio access network, it would be necessary to utilize higher-frequency resources and to densify the netwo... [more] | RCS2013-360 SR2013-113 SRW2013-54 pp.329-334(RCS), pp.119-124(SR), pp.65-70(SRW) |
| RCS, NS (Joint) |
2013-12-18 15:45 |
Kagawa | Sunport Hall Takamatsu | A Study on Discovery Signal for Efficient Macro-assisted Small Cell Discovery Mechanism in LTE SCE Hiroki Harada, Kazuaki Takeda, Satoshi Nagata (NTT DOCOMO), Hiroyuki Ishii (DOCOMO INNOVATIONS), Yoshihisa Kishiyama (NTT DOCOMO) RCS2013-215 |
In order to deal with an increasing mobile data traffic, a future radio access network may consist of macrocells with a ... [more] | RCS2013-215 pp.53-58 |
| RCS, NS (Joint) |
2013-12-18 16:10 |
Kagawa | Sunport Hall Takamatsu | Investigation on inter-cell interference suppression using small cell discovery signal in LTE-Advanced Kazuaki Takeda (NTT DOCOMO), Yu Jiang (DOCOMO Beijing Lab.), Hiroki Harada (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Inovations) RCS2013-216 |
[more] | RCS2013-216 pp.59-64 |
| SR, AN, USN, RCS (Joint) |
2012-10-17 11:15 |
Fukuoka | Fukuoka univ. | Cell identification performance based on hierarchical synchronization channels in dense small cell environment Hiroki Harada, Akihito Morimoto, Yusuke Ohwatari, Satoshi Nagata (NTT DOCOMO), Hiroyuki Ishii (DOCOMO Innovations), Yukihiko Okumura (NTT DOCOMO) RCS2012-130 |
[more] | RCS2012-130 pp.31-36 |
| SR | 2012-01-26 16:05 |
Kagoshima | Kagoshima | [Panel Discussion]
Possible applications of cognitive radio techniques to the next generation cellular communication systems Hiromasa Fujii, Hiroki Harada, Shunji Miura, Hidetoshi Kayama (NTT DOCOMO) SR2011-84 |
[more] | SR2011-84 pp.43-50 |
| AP | 2012-01-18 13:20 |
Fukuoka | Kyushu Inst. of Tech. | Experimental Study on Spatio-Temporal Channel in Indoor Environments Koshiro Kitao, Tetsuro Imai, Kentaro Saito, Yoshiki Okano, Hiroki Harada, Shunji Miura (NTT DOCOMO) AP2011-152 |
This paper describes characteristics of direct and scattered waves which are extracted from the measurement channel data... [more] | AP2011-152 pp.37-42 |
| SR | 2011-07-28 15:05 |
Kanagawa | YRP | [Technology Exhibit]
Multiple Signal Identification Equipment Based on Cyclostationarity Hiroki Harada, Shunji Miura, Hidetoshi Kayama (NTT DOCOMO) SR2011-27 |
A cyclostationary feature detection is considered as one of major sensing techniques for a cognitive radio system due to... [more] | SR2011-27 pp.61-66 |
| SR | 2011-04-22 09:55 |
Shimane | Matsue Terrsa | Achievable Capacity of Cognitive Radio Systems Coexisting with a Macro Cellular System Hiromasa Fujii, Hiroki Harada, Shunji Miura, Hidetoshi Kayama (NTT DOCOMO) SR2011-9 |
[more] | SR2011-9 pp.53-58 |
| RCS, MoNA, SR (Joint) |
2011-03-02 13:40 |
Kanagawa | YRP | A Signal Recognition Technique based on Cyclostationarity and its Application to Cognitive Radio Systems Hiroki Harada, Hiromasa Fujii, Shunji Miura, Hidetoshi Kayama (NTT DOCOMO) SR2010-90 |
This paper introduces a signal recognition technique based on cyclostationarity and proposes its application to cognitiv... [more] | SR2010-90 pp.17-22 |
| SR | 2011-01-27 13:25 |
Fukuoka | Kyushu Institute of Technology | Experimental Evaluation of Cyclostationarity-Based Multiple Signal Identification Method by using Spatial Channel Emulator Hiroki Harada, Hiromasa Fujii, Shunji Miura, Hidetoshi Kayama, Yoshiki Okano, Tetsuro Imai (NTT DOCOMO) SR2010-70 |
The problem with conventional cyclostationarity-based feature detection is that the detection probability of weak sign... [more] |
SR2010-70 pp.7-12 |
| SR | 2010-07-29 13:00 |
Kyoto | ATR (Kyoto) | Experimental Evaluation of Multiple Signal Identification based on Cyclostationarity in Spectrum Sharing Scenarios Hiroki Harada, Hiromasa Fujii, Shunji Miura, Tomoyuki Ohya (NTT DOCOMO) SR2010-16 |
The problem of conventional cyclostationarity-based feature detection is that the detection probability of weak signals ... [more] | SR2010-16 pp.1-6 |
| SR | 2010-01-22 10:40 |
Tokyo | Univ. of Electro-Communications | Iterative Cyclostationarity-based Feature Detection of Multiple Primary Signals for Spectrum Sharing Scenarios Hiroki Harada, Hiromasa Fujii, Shunji Miura, Tatsuo Furuno, Tomoyuki Ohya (NTT DOCOMO, INC.) SR2009-84 |
The original cyclostationarity cannot distinguish signals if several signals have the same signal format and parameters,... [more] | SR2009-84 pp.65-72 |
| ITS | 2007-05-24 17:15 |
Kanagawa | Yokosuka Research Park | A Study on a DS-UWB Radar Based on Parallel Transmission Using Orthogonal Pulses and Multiple Sequences with Various Length Yuichi Nakayama, Kentaro Taniguchi, Hiroki Harada, Ryuji Kohno (YNU) ITS2007-8 |
A lot of attention has been paid to DS-UWB(Direct Sequence-UWB) radar. It can measure the distance to the target with hi... [more] | ITS2007-8 pp.43-48 |
| RCS, MoNA, WBS, SR, MW (Joint) |
2007-03-07 10:40 |
Kanagawa | YRP | Receiver Design for UWB Multiple Access System Based on Wavelet Packets Hiroki Harada, Marco Hernandez, Ryuji Kohno (Yokohama National Univ.) |
In this paper, we propose UWB multiple access system based on Wavelet Packets. We design Wavelet Packet waveforms for U... [more] |
WBS2006-45 pp.7-12 |
| WBS | 2006-10-27 11:00 |
Miyagi | Akiu Resort Hotel Crescent (Sendai) | [Special Talk]
Report on ISSSTA'06 Hiroki Harada (Yokohama National Univ.), Kohei Ohno (Meiji Univ.), Masato Saito (Nara Inst. of Sci. and Tech.), Takeo Fujii (Univ. of Electro-Communications), Takehiko Kobayashi (Tokyo Denki Univ.) |
[more] | WBS2006-33 pp.19-24 |
| SN (2nd) |
2006-05-19 11:35 |
Tokyo | Tokyo Univ. of Science, Morito Memorial Hall | An Energy Efficient and Low-Delay Improved IEEE 802.15.4 MAC Protocol for Medical Monitoring Saori Fukushi, Koji Ishibashi, Hiroki Harada, Ryuji Kohno (Yokohama National Univ.) |
[more] | |
| RCS, AP, WBS, SR, MW, MoNA (Joint) |
2006-03-03 13:20 |
Kanagawa | YRP | A Study on In Vivo Wireless Communication Based on Body Temperature Elevation Naoki Kuse, Koji Ishibashi, Satoshi Matsuda, Hiroki Harada, Ryuji Kohno (Yokohama Nat. Univ.) |
[more] | RCS2005-228 pp.301-305 |
| WBS | 2005-12-16 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | A Study on Stochastic Radiowave Propagation Model inside a Human Body Satoshi Matsuda, Hiroki Harada, Ryuji Kohno (Yokohama National Univ.) |
[more] | WBS2005-59 pp.19-24 |
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