Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SR, SRW (Joint) |
2013-02-27 14:50 |
Tokyo |
Waseda Univ. |
User Scheduling for Uplink SC-FDMA with Subcarrier-Blocking Takayoshi Iwata, Kazuhiro Kimura, Hiroyuki Miyazaki, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-297 |
Previously, we proposed the scheduling methods so as to select a constant number of simultaneous multi-access users for ... [more] |
RCS2012-297 pp.79-84 |
RCS, SR, SRW (Joint) |
2013-02-27 09:00 |
Tokyo |
Waseda Univ. |
Spectrum Assignment in Multi-hop Relay with Diversity Takanori Matsuno, Kazuhiro Kimura, Hiroyuki Miyazaki, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2012-304 |
In mobile communications, multi-hop relay can reduce the transmit power since the communication distance is reduced, whi... [more] |
RCS2012-304 pp.121-125 |
RCS, SR, SRW (Joint) |
2013-02-27 09:20 |
Tokyo |
Waseda Univ. |
Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay with Multi-Antenna Using Direct/Cooperative DF Relay Switching Kazuhiro Kimura, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-305 |
In our previous work, we proposed an adaptive modulation assignment method for uplink single carrier (SC) 2-time slot co... [more] |
RCS2012-305 pp.127-132 |
RCS, NS, USN (Joint) |
2012-07-20 09:25 |
Iwate |
Iwate Univ. |
A Study of Scheduling for Uplink SC-FDMA Cooperative AF relay Takayoshi Iwata, Kazuhiro Kimura, Hiroyuki Miyazaki, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2012-85 |
[more] |
RCS2012-85 pp.61-66 |
SR, RCS, SRW (Joint) |
2012-03-09 13:50 |
Kanagawa |
YRP |
Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Using Direct/Cooperative DF Relay Switching Kazuhiro Kimura, Masayuki Nakada, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2011-367 |
The cooperative relay is a promising technique to increase the cell edge throughput. In our previous paper, we proposed ... [more] |
RCS2011-367 pp.305-310 |
SAT, SANE (Joint) |
2012-02-16 13:50 |
Mie |
|
Area evaluation of wideband transmission propagation for Quasi Zenith Isao Nakazawa, Kazuhiro Kimura, Yoshiyuki Fujino, Shin'ichi Hama (NICT) SANE2011-160 SAT2011-67 |
In Japan, mobile satellite communication systems are now in service on S-band frequency. Moreover, the Quasi Zenith Sat... [more] |
SANE2011-160 SAT2011-67 pp.1-6(SANE), pp.13-18(SAT) |
NS, RCS (Joint) |
2011-12-15 13:15 |
Yamaguchi |
Yamaguchi University |
Suboptimal Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Kazuhiro Kimura, Masayuki Nakada, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) NS2011-126 RCS2011-239 |
We previously proposed a modulation assignment method (conventional method) for uplink single carrier (SC) 2-time slot c... [more] |
NS2011-126 RCS2011-239 pp.43-48(NS), pp.39-44(RCS) |
AP, SAT (Joint) |
2011-07-14 14:25 |
Nagano |
Fac. Eng., Shinshu Univ. |
Wideband radio propagation analysis for Quasi Zenith Satellite Systems at high elevation angles Isao Nakazawa, Kazuhiro Kimura, Yoshiyuki Fujino, Shin'ichi Hama (NICT) SAT2011-10 |
In Japan, mobile satellite communication systems are now in service on S-band frequency. Moreover, the Quasi Zenith Sat... [more] |
SAT2011-10 pp.13-18 |
RCS, MoNA, SR (Joint) |
2011-03-04 13:40 |
Kanagawa |
YRP |
Modulation Assignment for Uplink Single Carrier Cooperative DF Relay Kazuhiro Kimura, Masayuki Nakada, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2010-291 |
The throughput of a user close to the cell edge significantly degrades by the path loss, shadowing loss and fading. The ... [more] |
RCS2010-291 pp.247-252 |
RCS, SAT (Joint) |
2007-12-21 10:35 |
Oita |
|
Propagation analysis and field measurements of circularly polarized wave on high elevation angle for mobile satellite communications Isao Nakazawa, Kazuhiro Kimura, Jun Amagai, Yoshiyuki Fujino, Hitoshi Ishida, Shin'ichi Hama (NICT) SAT2007-57 |
In the mobile satellite communications in the personal use environment, it is preferable to clarify a variety of propaga... [more] |
SAT2007-57 pp.7-12 |
SAT |
2006-10-19 17:30 |
Overseas |
KAL Hotel (Jeju-Do, Korea) |
Analysis of the Propagation Field Data on High Elevation Angle for 2GHz and 2.5GHz Bands Mobile Satellite Communications Isao Nakazawa (NTWL), Kazuhiro Kimura, Hitoshi Ishida, Shin'ichi Hama (NICT) |
The receiving revel of mobile satellite communication using the communication and broadcasting engineering test satellit... [more] |
|
AP, SAT (Joint) |
2006-07-07 09:55 |
Hiroshima |
Hiroshima Institute of Technology |
Communication System Design in Time Management System for Satellite Positioning System using Quasi-Zenith Satellites Yasuhiro Takahashi, Jun Amagai, Kazuhiro Kimura, Miho Fujieda, Shin'ichi Hama (NICT), Mikio Sawabe, Motohisa Kishimoto (JAXA), Kazuo Kondo, Toshihaya Nakahara, Satoshi Horiuchi (NTS) SAT2006-14 |
[more] |
SAT2006-14 pp.7-12 |
AP, SAT (Joint) |
2006-07-07 10:20 |
Hiroshima |
Hiroshima Institute of Technology |
Propagation measurements and analysis on high elevation angle for 2GHz and 2.5GHz bands mobile satellite communications Isao Nakazawa (NTWL), Kazuhiro Kimura, Hitoshi Ishida, Shin'ichi Hama (NICT) SAT2006-15 |
In the measurement of received power of the mobile satellite communication systems by using COMETS(Communication and br... [more] |
SAT2006-15 pp.13-18 |
AP, SAT (Joint) |
2006-05-18 14:20 |
Kagoshima |
Kagoshima Univ. |
Field Measurement of Radio Environment Using S-Band Thin Antennas for Automotive Mobile Satellite Communications Kazuhiro Kimura, Shin'ichi Hama (NICT), Izuru Naito, Masahiro Ichieda, Seiya Inoue, Motoyoshi Terauchi (Mitsubishi Electric Corp.) SAT2006-3 |
Field measurement results of radio environment are reported for interference assessment at mobile terminals from existin... [more] |
SAT2006-3 pp.11-16 |
SAT |
2005-10-13 13:40 |
Aichi |
Rubura Ohzan |
Quasi-Zenith Satellite System (QZSS)
-- Outline and its time related mission -- Shin'ichi Hama, Yasuhiro Takahashi, Jun Amagai, Hiroyuki Ito, Takao Morikawa, Shouichirou Yokota, Miho Fujieda, Kazuhiro Kimura (NICT) |
Japan has started a project of Quasi-Zenith Satellite System (QZSS)
since FY2003. QZSS will be highly useful not only... [more] |
SAT2005-19 pp.13-17 |
SANE |
2005-06-30 14:55 |
Ibaraki |
JAXA(Tsukuba) |
Large telescope satellite on quasi-zenith orbit Masato Tanaka, Yoshinori Arimoto, Kazuhiro Kimura (NICT) |
The demand which carries out optical observation of Japan and its circumference by high resolution from a satellite for ... [more] |
SANE2005-38 pp.103-106 |
AP, SAT (Joint) |
2005-05-20 09:55 |
Tottori |
Tottori Univ. of Environmental Studies |
S-band packet communication test system for Quasi-Zenith Satellite System Kazuhiro Kimura, Hitoshi Ishida, Shin'ichi Hama (NICT), Nobuyuki Ishioka, Yasushi Kasugai (Hitachi), Haruo Akino (FDK), Nobutoshi Fukuden (AI Elec.), Hiroyuki Uematsu (Mitsubishi Elec.) |
S-band mobile satellite packet communication service will be provided by the developing Japanese Quasi-Zenith satellite ... [more] |
SAT2005-2 pp.7-12 |
|