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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SAT, RCS (Joint) |
2012-08-30 14:50 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | [Invited Lecture]
A novel peak power reduction technique for multi-channel single carrier transmission Fumihiro Hasegawa, Masatsugu Higashinaka, Akihiro Okazaki, Fumio Ishizu (Mitsubishi Electric)  SAT2012-20 RCS2012-106 |
Multiple channel transmission has been implemented in satellite communications due to the increasing demands for multius... [more] | SAT2012-20 RCS2012-106 pp.13-18(SAT), pp.61-66(RCS) |
| SAT, RCS (Joint) |
2012-08-31 15:40 |
Kochi | Kochi City Cultura-Plaza CUL-PORT | Interpolation Accuracy Improving Method in Sampling Rate Conversion Hiroki Iura, Koji Tomitsuka, Akihiro Okazaki, Fumio Ishizu (Mitsubishi Electric) SAT2012-35 |
In satellite communication systems, several transmission rate signals are used depending on a user application, such as ... [more] | SAT2012-35 pp.103-107 |
| RCS | 2012-06-21 15:20 |
Hokkaido | Hakodate City Central Library | A Study on Performance Improvement in Slow Fading Environment by Multiple Base Station and Beam Control Kaoru Tsukamoto, Yasunori Kato, Akihiro Okazaki, Fumio Ishizu (Mitsubishi Electric) RCS2012-54 |
For mobile reception, the Doppler spread using a directional antenna for a received antenna is partial of that using an ... [more] | RCS2012-54 pp.67-72 |
| RCS | 2012-06-21 15:50 |
Hokkaido | Hakodate City Central Library | Performance Evaluation of MIMO-OFDM Transmission Systems for High-speed Mobile Environment using a Testbed Akinori Ohashi, Juntaro Mura, Hiroshi Nishimoto, Akihiro Okazaki, Fumio Ishizu (Mitsubishi Electric Corp.) RCS2012-55 |
[more] | RCS2012-55 pp.73-78 |
| SR, RCS, SRW (Joint) |
2012-03-09 13:50 |
Kanagawa | YRP | A Study on Wideband Channel Estimation for Secondary Use of White Space Spectrum Hiroshi Nishimoto, Akihiro Okazaki, Hiroshi Kubo (Mitsubishi Electric) SR2011-132 |
Recently, as a countermeasure for serious shortage of radio frequency resources, secondary use of white space (WS) spect... [more] | SR2011-132 pp.195-200 |
| AP, RCS (Joint) |
2011-11-16 15:50 |
Aichi | Nagoya Congress Center | Phase Rotation Techniques to Reduce PAPR of Multi-Channel SC-OFDM Fumihiro Hasegawa, Akihiro Okazaki, Hiroshi Kubo (Mitsubishi Electric) RCS2011-203 |
[more] | RCS2011-203 pp.85-90 |
| RCS | 2011-06-23 13:20 |
Okinawa | Ryukyu Univ. | MIMO Transmission Technologies employing PADM (per transmit antenna differential mapping) with High Order Channel Estimation Hiroshi Kubo, Akihiro Okazaki, Koji Tomitsuka (Mitsubishi Electric) RCS2011-45 |
In order to improve tracking capability for fast time-varying channels, this paper proposes multiple-input multiple-outp... [more] | RCS2011-45 pp.61-66 |
| SANE, SAT (Joint) |
2011-02-25 09:25 |
Hyogo | NICT Kobe Research Laboratories | A Study on Variable Symbol Rate Transmission Technique Using Resampling Filter Koji Tomitsuka, Hiroyasu Sano, Akihiro Okazaki, Hiroshi Kubo (Mitsubishi Electric) SAT2010-83 |
In the satellite communication system communicated at various transmission rates with voice and data, variable symbol ra... [more] | SAT2010-83 pp.43-48 |
| SIP, RCS | 2011-01-21 13:25 |
Kagoshima | Maximum Likelihood Detector for Sparse Multipath Fading Channels Fumihiro Hasegawa, Akihiro Okazaki, Hiroshi Kubo (Mitsubishi Electric Corp.) SIP2010-109 RCS2010-239 |
There has been interests to develop MLD (Maximum Likelihood Detector) for sparse multipath fading channels. Since a tre... [more] | SIP2010-109 RCS2010-239 pp.239-244 |
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| SIP, RCS | 2011-01-21 14:55 |
Kagoshima | A study on synchronization method for scattered pilot-aided OFDM systems Akinori Ohashi, Akinori Nakajima, Kenichiro Tanaka, Hiroshi Hattori, Akihiro Okazaki, Hiroshi Kubo (Mitsubishi Electric) SIP2010-117 RCS2010-247 |
[more] | SIP2010-117 RCS2010-247 pp.287-292 |
|
| AP, RCS (Joint) |
2010-11-12 14:30 |
Fukui | Fukui Univ. | A Two-Dimensional Channel Estimation Method Using Parameter Table Selection for Scattered Pilot-Aided OFDM Systems Kenichiro Tanaka, Akinori Ohashi, Akinori Nakajima, Hiroshi Hattori, Akihiro Okazaki, Hiroshi Kubo (Mitsubishi Electric) RCS2010-156 |
In MIMO-OFDM systems using M-ary QAM, precise channel estimates are required to demodulate received signals correctly. I... [more] | RCS2010-156 pp.87-92 |
| CAS, CS, SIP | 2009-03-02 10:50 |
Gifu | Nagaragawa Convention Center | Random Beamforming Applying QRD-Based Precoding Technique in MIMO-OFDMA Akihiro Okazaki, Iwao Sasase (Keio Univ.) CAS2008-105 SIP2008-168 CS2008-79 |
[more] | CAS2008-105 SIP2008-168 CS2008-79 pp.25-30 |
| RCS | 2008-06-27 13:15 |
Mie | Mie University | MIMO-OFDMA Resource Allocation Scheme Selecting Users with Maximum Capacity And Large Minimum Eigenvalue by Using SVD Kaori Anan, Masahiro Fujikawa, Akihiro Okazaki, Iwao Sasase (Keio Univ.) RCS2008-23 |
In this paper, we propose a MIMO-OFDMA (Multi Input Multi Output-Orthogonal Frequency Division Multiple Access) resource... [more] | RCS2008-23 pp.43-48 |
| RCS | 2007-10-18 14:00 |
Nagano | Tokyo Uni. of Science, Suwa | Channel Estimation with Ordered Interference Cancellation for a MIMO Receiver Using Iterative Equalization and Decoding Masatsugu Higashinaka, Hiroshi Kubo, Akihiro Shibuya (Mitsubishi Electric Corp.), Akihiro Okazaki (Mitsubishi Electric ITE-TCL), Yasutaka Ogawa, Takeo Ohgane, Toshihiko Nishimura (Hokkaido Univ.) RCS2007-80 |
[more] | RCS2007-80 pp.1-6 |
| RCS | 2007-06-29 15:50 |
Aichi | Toyohashi Uni. of Tech. | Soft Decision Iterative V-BLAST with Detection of All Symbols at the Last Stage by Changing Detection Order in Hybrid STBC Akihiro Okazaki, Masahiro Fujikawa, Kazuhiko Hasegawa, Iwao Sasase (Keio Univ.) RCS2007-28 |
In this paper, we propose a soft decision iterative Vertical Bell Laboratories Layered Space-Time (V-BLAST) scheme with ... [more] | RCS2007-28 pp.103-108 |
| AP, RCS (Joint) |
2005-10-20 14:15 |
Akita | Akita Prefectural Univ. | Reduced Complexity Maximum Likelihood Detection with Soft-Decision Outputs for MIMO Wireless Communication Systems Masatsugu Higashinaka, Akihiro Okazaki, Katsuyuki Motoyoshi, Takayuki Nagayasu, Hiroshi Kubo, Akihiro Shibuya (Mitsubishi Electric Corp.) |
This paper proposes reduced complexity maximum likelihood detection (MLD) with soft-decision outputs for multiple-inpu... [more] |
RCS2005-91 pp.37-42 |
| CQ, RCS (Joint) |
2005-04-22 14:20 |
Kyoto | ATR | Performance improvement and complexity reduction for MIMO employing PADE Hiroshi Kubo, Masatsugu Higashinaka, Akihiro Okazaki, Keishi Murakami (Mitsubishi Electric) |
This paper proposes performance improvement and complexity reduction schemes for multiple-input multiple-output (MIMO) c... [more] | RCS2005-10 pp.19-24 |
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