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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 78  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
NS, RCS
(Joint)
2020-12-18
15:50
Niigata machinaka campus nagaoka and Online
(Primary: On-site, Secondary: Online)
K-Factor Estimation based on Spectrogram Images by Convolutional Neural Network
Shun Kojima, Kosuke Shima (Chiba Univ.), Kazuki Maruta (Tokyo Tech), Chang-Jun Ahn (Chiba Univ.)
 [more]
SR, NS, SeMI, RCC, RCS
(Joint)
2020-07-08
10:00
Online Online Evaluation of Processing Speed and Throughput in CNN-based Communication Environment Estimation Method using Spectrograms
Shun Kojima (Chiba Univ.), Kazuki Maruta (Tokyo Tech), Chang-Jun Ahn (Chiba Univ.) RCS2020-58
 [more] RCS2020-58
pp.1-6
RCS 2020-04-23
11:45
Online Online Deep Learning based Joint SNR and Doppler Shift Detection using Multiuser Spectrogram
Shun Kojima (Chiba Univ.), Yi Feng (Duke Univ.), Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.), Vahid Tarokh (Duke Univ.) RCS2020-4
 [more] RCS2020-4
pp.19-24
AP, RCS
(Joint)
2019-11-22
09:50
Saga Saga Univ. Improving Time-domain Symbol Spread Blind Adaptive Array Interference Suppression by Principal Component Analysis
Kazuki Maruta (Chiba Univ.), Kentaro Nishimori (Niigata Univ.), Chang-Jun Ahn (Chiba Univ.) RCS2019-226
We previously proposed a time-domain symbol spreading (TSS) which can expand the operational region of the blind adaptiv... [more] RCS2019-226
pp.129-134
RCS 2019-10-24
09:30
Kanagawa Yokosuka Research Park SNR estimation method using convolutional neural network
Shun Kojima, Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2019-178
 [more] RCS2019-178
pp.1-6
RCS 2019-10-25
14:35
Kanagawa Yokosuka Research Park [Invited Lecture] M-QAM Adaptation by Semi-Blind Multi Modulus Algorithm and MMSE-SMI for Multicell Massive MIMO Systems
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2019-199
This paper expands our previously proposed semi-blind uplink interference suppression scheme on multicell multiuser mass... [more] RCS2019-199
pp.115-120
MIKA
(2nd)
2019-10-03
13:05
Hokkaido Hokkaido Univ. [Invited Lecture] Deep Learning Based Communication Environment Estimation Using Received Signals
Kazuki Maruta, Shun Kojima, Chang-Jun Ahn (Chiba Univ.)
The performance of wireless communication greatly depends on the propagation environment.
Adaptive modulation and codi... [more]

CQ
(2nd)
2019-09-05
10:40
Tokyo Inter-University Seminar House [Poster Presentation] The estimation method of SNR and Doppler frequency by convolutional neural network using spectrogram
Shun Kojima, Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.)
 [more]
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
10:40
Osaka I-Site Nanba(Osaka) [Poster Presentation] Blind SIR Estimation by Deep Learning Using Visualized Wireless Signal Information
Kazuki Maruta, Shun Kojima (Chiba Univ.), Yu Nakayama (TUAT), Daisuke Hisano (Osaka Univ.), Chang-Jun Ahn (Chiba Univ.) RCC2019-27 NS2019-63 RCS2019-120 SR2019-39 SeMI2019-36
This article proposes the blind interference estimation via deep learning approach exploiting the visualized wireless si... [more] RCC2019-27 NS2019-63 RCS2019-120 SR2019-39 SeMI2019-36
pp.85-86(RCC), pp.111-112(NS), pp.107-108(RCS), pp.117-118(SR), pp.99-100(SeMI)
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
13:30
Osaka I-Site Nanba(Osaka) SNR estimation method using convolutional neural network
Shun Kojima, Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCC2019-38 NS2019-74 RCS2019-131 SR2019-50 SeMI2019-47
This paper proposes a novel Adaptive Modulation and Coding (AMC) scheme enabled by Convolutional Neural Network (CNN) ai... [more] RCC2019-38 NS2019-74 RCS2019-131 SR2019-50 SeMI2019-47
pp.127-132(RCC), pp.153-158(NS), pp.149-154(RCS), pp.159-164(SR), pp.141-146(SeMI)
RCS 2019-06-21
11:40
Okinawa Miyakojima Hirara Port Terminal Building SNR Estimation by using Neural Network in Adaptive Modulation and Coding
Shun Kojima, Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2019-94
This paper proposes a novel Adaptive Modulation and Coding (AMC) scheme enabled by Artificial
Neural Network (ANN) aide... [more]
RCS2019-94
pp.333-338
RCS, SR, SRW
(Joint)
2019-03-06
14:35
Kanagawa YRP [Invited Lecture] Blind Adaptive Array with Time-Domain Symbol Spreading
Kazuki Maruta (Chiba Univ.), Kentaro Nishimori (Niigata Univ.), Yu Nakayama (Aoyama Gakuin Univ.), Chang-Jun Ahn (Chiba Univ.) RCS2018-296
This paper proposes a time-domain symbol spreading (TSS) to expand the operational region of the blind adaptive array in... [more] RCS2018-296
pp.77-82
RCS 2018-10-19
09:30
Tokyo Kikai-Shinko-Kaikan Bldg. Adaptive Switching Method with AMC and FSS
Shun Kojima, Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2018-164
In recent years, it is required to realize higher speed and higher quality mobile communication due to the increase in I... [more] RCS2018-164
pp.71-76
RCS 2018-10-19
10:30
Tokyo Kikai-Shinko-Kaikan Bldg. Vehicle-to-Pedestrian Connectivity on High Frequency Band Vehicle-Installed Access Points for Adaptive Mobile Network
Kazuki Maruta (Chiba Univ.), Yu Nakayama (Aoyama Gakuin Univ.), Kazuaki Honda (Keio Univ.), Daisuke Hisano (Osaka Univ.), Ken Tanaka (neko 9 Lab.), Chang-Jun Ahn (Chiba Univ.) RCS2018-167
We previously conceived a concept of adaptive mobile network to track the demand traffic fluctuation via vehicle-install... [more] RCS2018-167
pp.89-94
RCS 2018-10-19
15:55
Tokyo Kikai-Shinko-Kaikan Bldg. [Encouragement Talk] Interference Suppression Schemes for Pilot Decontamination on Multicell Massive MIMO Systems
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2018-177
This paper presents interference suppression performance of our proposed semi-blind uplink interference suppression sche... [more] RCS2018-177
pp.143-148
CQ 2018-05-31
16:40
Chiba Chiba Univ. Nishi-Chiba Campus, academic link center [Invited Talk] Blind Interference Suppression on Adaptive Arrays: Comparisons and Applications for Spectrum Sharing
Kazuki Maruta (Chiba Univ.), Kentaro Nishimori (Niigata Univ.), Chang-Jun Ahn (Chiba Univ.) CQ2018-22
This paper presents performance comparison of interference suppression on blind adaptive array algorithms. Co-channel in... [more] CQ2018-22
pp.25-30
CS, CAS 2018-03-13
16:20
Fukuoka Nishijin Plaza, Kyushu University Stabilized Interference Suppression by Initial Antenna Selection for CMA/MMA Adaptive Array over Fading Channel
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) CAS2017-160 CS2017-114
This paper proposes an initial antenna selection for constant modulus-based blind interference suppression algorithms to... [more] CAS2017-160 CS2017-114
pp.151-155
RCS, SR, SRW
(Joint)
2018-03-01
09:00
Kanagawa YRP Improving Semi-Blind Interference Suppression Performance on Multicell Massive MIMO Uplink by Beamspace Method
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2017-346
This paper improves our previously proposed semi-blind uplink interference suppression scheme for multicell multiuser ma... [more] RCS2017-346
pp.167-172
RCS 2017-10-20
13:25
Miyagi Tohoku Institute of Technology [Invited Lecture] Semi-Blind Adaptive Interference Cancellation with Decision Feedback Channel Estimation on Multicell Massive MIMO Uplink
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.) RCS2017-194
This paper proposes a semi-blind uplink interference suppression scheme for multicell multiuser massive MIMO systems. In... [more] RCS2017-194
pp.143-148
CQ
(2nd)
2017-10-16
16:15
Fukuoka Nishijin Plaza, Kyushu Univ. [Poster Presentation] Comparison of Interference Suppression Performance on Blind Adaptive Array Algorithms
Kazuki Maruta, Chang-Jun Ahn (Chiba Univ.)
We present performance comparison of interference suppression on blind adaptive array algorithms. Co-channel interferenc... [more]
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