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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 71  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
EMM 2024-01-16
14:25
Miyagi Tohoku Univ.
(Primary: On-site, Secondary: Online)
Comparison of multi-factor authentication and improved authentication methods for increased security
Kazuki Takeda, Youichi Takashima (Kaishi Professional Univ) EMM2023-81
Password authentication is used as an authentication method for various services, and while ID+password authentication i... [more] EMM2023-81
pp.7-12
SRW 2023-06-12
10:15
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
Performance evaluation of simplified UTW-OFDM-applied 5G emulator based on open-source platform
Kazuki Takeda, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2023-2
The demands for higher performance in mobile communication systems continue to increase, and research and
development f... [more]
SRW2023-2
pp.7-12
HCGSYMPO
(2nd)
2022-12-14
- 2022-12-16
Kagawa Onsite (Sunport Takamatsu) and Online
(Primary: On-site, Secondary: Online)
Analyzing and Recognizing Synergetic Functions between Head Movements and Facial Expressions in Conversations
Mai Imamura, Kazuki Takeda (YNU), Shiro Kumano (NTT), Kazuhiro Otsuka (YNU)
In this paper, we propose machine-learning models for recognizing the synergetic functions between facial expressions an... [more]
RCS 2014-06-18
10:21
Okinawa Okinawa-ken Seinenkaikan (Naha) Throughput Performance of Turbo Coded Single-Carrier Transmission with Frequency-Domain Puncturing
Shohei Nakajima (Tokyo Univ. of Science), Kazuki Takeda (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2014-66
This paper investigates the throughput performance of turbo coded single-carrier transmission with our previously report... [more] RCS2014-66
pp.197-202
RCS 2013-06-20
09:50
Hokkaido Hokkaido Univ. A Study on Joint Transmitter/Receiver Channel Equalization for Frequency-Domain Punctured Turbo Codes
Kengo Nakamura (Tokyo Univ. of Science), Kazuki Takeda (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2013-42
This paper proposes a frequency-domain transmitter filtering technique assuming the channel knowledge at the transmitter... [more] RCS2013-42
pp.31-36
SR, AN, USN, RCS
(Joint)
2012-10-18
10:15
Fukuoka Fukuoka univ. Performance Evaluation of Interference Rejection Combining Receiver in LTE-Advanced Uplink CoMP
Takashi Iwai (PMCRD), Kazuki Takeda, Akihiko Nishio (Panasonic), Atsushi Matsumoto, Sadaki Futagi (PMCRD) RCS2012-138 SR2012-58 AN2012-32 USN2012-35
Introduction of coordinated multipoint (CoMP) operation is considered to enhance the spectrum efficiency in LTE-Advanced... [more] RCS2012-138 SR2012-58 AN2012-32 USN2012-35
pp.81-86(RCS), pp.139-144(SR), pp.51-56(AN), pp.45-50(USN)
RCS, NS, USN
(Joint)
2012-07-20
10:50
Iwate Iwate Univ. A Proposal of a GIS Platform for Storing and Analyzing AIS data
Yoh Shiraishi, Kazuki Takeda, Yoshitaka Nakamura, Osamu Takahashi (Future Univ. Hakodate) USN2012-23
Information from a vessel equipped with an automatic identification system (AIS) is essential to support safety navigati... [more] USN2012-23
pp.33-36
SR, RCS, SRW
(Joint)
2012-03-08
09:50
Kanagawa YRP Comparison/discussion on pilot-signals for channel estimation in LTE-advanced uplink CoMP
Kazuki Takeda, Akihiko Nishio, Takashi Iwai, Yoshihiko Ogawa, Daichi Imamura (Panasonic) RCS2011-339
 [more] RCS2011-339
pp.139-144
RCS, MoNA, SR
(Joint)
2011-03-02
10:30
Kanagawa YRP Packet Combining Scheme for Single-carrier HARQ Using QRM-ML Block Signal Detection
Tetsuya Yamamoto, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-251
QR decomposition with M-algorithm maximum likelihood block signal detection (QRM-MLBD) can significantly improve the ach... [more] RCS2010-251
pp.19-24
RCS, MoNA, SR
(Joint)
2011-03-02
10:50
Kanagawa YRP Performance Comparison of Overlap FDE and Inter-block Interference Canceller for Single-carrier Transmission
Tatsunori Obara, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-252
 [more] RCS2010-252
pp.25-29
RCS, MoNA, SR
(Joint)
2011-03-02
11:30
Kanagawa YRP A Study on Complexity Reduction of Iterative Signal Detection for Uplink SC-FDMA MIMO using HARQ
Suguru Okuyama, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-254
Frequency-domain transmit filtered single-carrier (SC) transmission has a low peak-to-average power ratio (PAPR) propert... [more] RCS2010-254
pp.37-42
RCS, MoNA, SR
(Joint)
2011-03-02
11:10
Kanagawa YRP Transmit Power Reduction of Distributed Antenna Network for Downlink Transmissions Using Joint Transmit/Receive Diversity
Ryusuke Matsukawa, Tatsunori Obara, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-262
Distributed antenna network (DAN), in which a group of multiple antennas are distributed in a cell, can mitigate not onl... [more] RCS2010-262
pp.85-90
RCS, MoNA, SR
(Joint)
2011-03-04
13:20
Kanagawa YRP Spectrum Division & Adaptive Subcarrier Allocation for Direct/Cooperative Relay Switched SC-FDMA Uplink Communications
Masayuki Nakada, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-290
 [more] RCS2010-290
pp.241-246
RCS, MoNA, SR
(Joint)
2011-03-04
14:00
Kanagawa YRP Joint MS&RS/BS hybrid ARQ using frequency-domain equalization for uplink single-carrier cooperative relay transmission
Kazuki Takeda (Tohoku Univ.), Koichi Adachi, Sumei Sun (I2R), Fumiyuki Adachi (Tohoku Univ.) RCS2010-292
We consider an uplink single-carrier (SC) transmission and propose a cooperative relaying hybrid automatic repeat reques... [more] RCS2010-292
pp.253-258
NS, RCS
(Joint)
2010-12-16
09:20
Okayama Okayama Univ. Direct/Cooperative Relay Switching for SC-FDMA using Spectrum division & Adaptive subcarrier allocation
Masayuki Nakada, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) NS2010-106 RCS2010-160
In the next generation mobile communication systems, high speed data services are demanded. However, unacceptable large ... [more] NS2010-106 RCS2010-160
pp.7-12
AP, RCS
(Joint)
2010-11-12
09:30
Fukui Fukui Univ. Uplink capacity of single carrier multi-user MIMO using iterative frequency domain interference cancellation in a cellular system
Masashi Itagaki, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-149
Multi-user multi-input multi-output (MIMO) is known as a spectrum efficient multiplexing technique. When multi-user MIMO... [more] RCS2010-149
pp.45-50
AN, USN, SR, RCS
(Joint)
2010-10-29
09:30
Osaka Osaka University Single-carrier HARQ Throughput performance with Iterative Channel Estimation Using Pilot And Wiener-filtering
Tetsuya Uchiumi, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-128
Single-carrier (SC) pilot based iterative channel estimation with sliding Wiener filter having a short window size (seve... [more] RCS2010-128
pp.139-144
AN, USN, SR, RCS
(Joint)
2010-10-29
10:30
Osaka Osaka University HARQ Throughput of Distributed Antenna Network Downlink Using Space-Time Block Coded-Joint Transmit/Receive Diversity
Ryusuke Matsukawa, Tatsunori Obara, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-131
Distributed antenna network (DAN) which uses a number of antennas distributed geographically can mitigate the adverse ef... [more] RCS2010-131
pp.157-162
AN, USN, SR, RCS
(Joint)
2010-10-29
13:10
Osaka Osaka University Iterative MMSE Detection and Interference Cancellation for Uplink SC-FDMA MIMO using HARQ
Suguru Okuyama, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-135
For the next generation high-speed uplink wireless communication systems, single carrier (SC)- frequency-division multip... [more] RCS2010-135
pp.181-186
AN, USN, SR, RCS
(Joint)
2010-10-29
13:50
Osaka Osaka University Training Sequence-aided QRM-ML Block Signal Detection for Single-carrier MIMO Multiplexing
Tetsuya Yamamoto, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2010-137
Maximum likelihood block signal detection using QR decomposition and M-algorithm (QRM-MLBD) can significantly improve th... [more] RCS2010-137
pp.193-198
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