Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SDM, OME |
2023-04-21 14:50 |
Okinawa |
Okinawaken Seinen Kaikan (Primary: On-site, Secondary: Online) |
Time resolved measurement of transient impedance in thin film devices by extended and light synchronized time domain reflectometry Masatoshi Sakai, Tomoaki Mashiko, Koki Takano, Akira Kaino, Sou Kuromasa, Shintaro Fujii, Tatsuya Omori, Kazuhiro Kudo, Hirofumi Mino (Chiba Univ.) SDM2023-3 OME2023-3 |
[more] |
SDM2023-3 OME2023-3 pp.9-13 |
CAS, CS |
2015-02-27 10:25 |
Tottori |
Tottori University |
the research of highspeed beamforming technology based on downlink Multi-User MIMO/OFDM Haiyan Teng, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2014-133 CS2014-105 |
[more] |
CAS2014-133 CS2014-105 pp.77-80 |
CAS, CS |
2015-02-27 10:50 |
Tottori |
Tottori University |
A novel Symbol Timing Synchronization Scheme for OFDM Systems Based on variational Pseudo-Noise preamble Wenjian Wang, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2014-134 CS2014-106 |
[more] |
CAS2014-134 CS2014-106 pp.81-86 |
SRW |
2014-10-27 13:00 |
Chiba |
Chiba University |
Blind symbol synchronization scheme for preambleless OFDM systems based on cyclic prefixes in multipath channels Wen-jian Wang, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) SRW2014-28 |
Symbol timing offset (STO) can cause phase offset (FO),inter-symbol interference (ISI) and inter-channel interference (I... [more] |
SRW2014-28 pp.19-24 |
SRW |
2014-10-27 13:25 |
Chiba |
Chiba University |
IQ Imbalance and Carrier Frequency Offset Compensation Schemes using TFI-OFDM Hikaru Oka, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) SRW2014-29 |
A direct-conversion receiver (DCR) can reduce the power consumption and cost. However, a DCR in Orthogonal frequency div... [more] |
SRW2014-29 pp.25-30 |
SRW |
2014-10-27 13:50 |
Chiba |
Chiba University |
Performance Enhancement for Single Symbol Decodable AMC QO-STBC/OFDM with Asymmetric Constellation Masayuki Kitakata, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) SRW2014-30 |
STBC is a technique to achieve transmit diversity.
QO-STBC is full rate STBC constructed from relaxing orthogonality, a... [more] |
SRW2014-30 pp.31-35 |
SRW |
2014-10-27 14:25 |
Chiba |
Chiba University |
Performance Improvement for VLC-OFDM using FSS and PPS Yosuke Fujii, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) SRW2014-31 |
Visible light communication has been attracted attention because of its ubiquitous and safety. However, faults of LED co... [more] |
SRW2014-31 pp.37-41 |
RCS, SR, SRW (Joint) |
2014-03-04 08:50 |
Tokyo |
Waseda Univ. |
A Study on Higher-Order RF-Recursive Filters Ken Seo, Takahiro Fujikawa, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ), Mikio Kamada (AKM) SRW2013-44 |
This paper reports development of the auto-setting methodology of the center frequency and fractional bandwidth for the ... [more] |
SRW2013-44 pp.1-6 |
SIP, CAS, CS |
2013-03-14 09:30 |
Yamagata |
Keio Univ. Tsuruoka Campus (Yamagata) |
Enhancement of cell-edge throughput performance with CoMP transmission using QO-STBC scheme Kei Okubo, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2012-96 SIP2012-127 CS2012-102 |
Recently, there has been growing demand for high data rate in wireless communication. However, under the situation such ... [more] |
CAS2012-96 SIP2012-127 CS2012-102 pp.1-4 |
SIP, CAS, CS |
2013-03-14 09:55 |
Yamagata |
Keio Univ. Tsuruoka Campus (Yamagata) |
IQ Imbalance Estimation and Compensation Schemes using TFI-OFDM System Hikaru Oka, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2012-97 SIP2012-128 CS2012-103 |
A direct-conversion receiver (DCR) reduces the power consumption and cost. However, DCR in Orthogonal frequency division... [more] |
CAS2012-97 SIP2012-128 CS2012-103 pp.5-8 |
SIP, CAS, CS |
2013-03-14 10:20 |
Yamagata |
Keio Univ. Tsuruoka Campus (Yamagata) |
Performance improvement with channel ranking and cutting the symbol candidate branchs for complexity reducing sequential decision with QRM-MLD Tomoki Yoshimura (Chiba Univ.), Yuta Ida (Hiroshima City Univ.), Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2012-98 SIP2012-129 CS2012-104 |
Recently, the wireless communication technology is required to carry a large amount of digital information with spread o... [more] |
CAS2012-98 SIP2012-129 CS2012-104 pp.9-14 |
SIP, CAS, CS |
2013-03-15 09:25 |
Yamagata |
Keio Univ. Tsuruoka Campus (Yamagata) |
Power Priority Selection for MUDiv/OFDMA and Adaptive Clipping due to Peak Reduction Signal Akihiro Kuroha, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2012-132 SIP2012-163 CS2012-138 |
In recent, orthogonal frequency division multiple access (OFDMA) has been used for a multiuser wireless communication. I... [more] |
CAS2012-132 SIP2012-163 CS2012-138 pp.209-214 |
SIP, CAS, CS |
2013-03-15 09:50 |
Yamagata |
Keio Univ. Tsuruoka Campus (Yamagata) |
Throughput Performance Enhancement applying Adaptive Modulation for Single Symbol Decodable QO-STBC with Full Diversity Masayuki Kitakata, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2012-133 SIP2012-164 CS2012-139 |
STBC is a technique to achieve transmit diversity. QO-STBC is full rate STBC constructed from relaxing orthogonality, an... [more] |
CAS2012-133 SIP2012-164 CS2012-139 pp.215-218 |
SIP, CAS, CS |
2013-03-15 10:15 |
Yamagata |
Keio Univ. Tsuruoka Campus (Yamagata) |
Interference Lump-sum Compensation Scheme using the Parallel Replica Signals for SP-MIMO/OFDM in the Large Delay Spread Channel Taichi Sakaue, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ) CAS2012-134 SIP2012-165 CS2012-140 |
In mobile communications, MIMO-OFDM system performance suffers severe degradation caused by the large delay spread chann... [more] |
CAS2012-134 SIP2012-165 CS2012-140 pp.219-222 |
US |
2012-10-22 15:30 |
Ishikawa |
Kanazawa Inst. Tech. |
Widely Tunable Surface Acoustic Wave Filters Masahiro Inaba, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) US2012-66 |
Tunable RF filters are strongly demanded for developing a reconfigurable RF front-end supporting multi-band and multi-st... [more] |
US2012-66 pp.13-16 |
CAS, CS, SIP |
2012-03-08 09:40 |
Niigata |
The University of Niigata |
A Design of Single Symbol Decodable QO-STBC with Full Diversity Naotoshi Yoda, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2011-121 SIP2011-141 CS2011-113 |
The conventional quasi-orthogonal space-time block code (QO-STBC) for four transmit antennas is full rate, but achieves ... [more] |
CAS2011-121 SIP2011-141 CS2011-113 pp.83-86 |
CAS, CS, SIP |
2012-03-08 10:05 |
Niigata |
The University of Niigata |
ISI and ICI Compensation with Large Delay Spread Channel Estimation based on Pilot Symbol's Cyclic Property for SP-OFDM Taichi Sakaue, Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ) CAS2011-122 SIP2011-142 CS2011-114 |
Scattered pilot based OFDM can accuretely estimate the channel state information (CSI) with small number pilot signals u... [more] |
CAS2011-122 SIP2011-142 CS2011-114 pp.87-91 |
CAS, CS, SIP |
2012-03-08 10:30 |
Niigata |
The University of Niigata |
Complexity Reducing QRD-MLD with Threshold Method based on the Estimated Noise Variance Tomoki Yoshimura (Chiba Univ.), Yuta Ida (Hiroshima City Univ.), Chang-Jun Ahn, Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2011-123 SIP2011-143 CS2011-115 |
[more] |
CAS2011-123 SIP2011-143 CS2011-115 pp.93-96 |
CAS, CS, SIP |
2012-03-09 09:25 |
Niigata |
The University of Niigata |
Optimum Splitting Transmission in Multi-Relay Cooperative Communications for WF/PA-SC-FDMA Yuta Ida (Hiroshima City Univ.), Chang-Jun Ahn (Chiba Univ.), Takeshi Kamio, Hisato Fujisaka, Kazuhisa Haeiwa (Hiroshima City Univ.), Tatsuya Omori, Ken-ya Hashimoto (Chiba Univ.) CAS2011-135 SIP2011-155 CS2011-127 |
[more] |
CAS2011-135 SIP2011-155 CS2011-127 pp.157-160 |
US |
2011-09-26 16:15 |
Miyagi |
Tohoku Univ. |
Modification of Scalar Potential Theory for Surface Acoustic Wave Devices to Take Slowness Asymmetry into Account Ken-ya Hashimoto, Tatsuya Omori, Chang-Jun Ahn (Chiba Univ.) US2011-51 |
[more] |
US2011-51 pp.27-30 |