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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 171  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, AP, UWT
(Joint)
2020-11-25
13:30
Online Online BLER Performance of FTN Signaling Using Successive Soft-Interference Canceller with Reducing Method of ISI and ICI Symbol Candidates for OFDM
Toshiharu Obara, Tsubasa Shobudani, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO)
 [more]
SRW 2020-08-25
14:40
Online Video Conf. [Invited Talk] DOCOMO's Views and Recent Activities on 5G Evolution & 6G
Satoshi Suyama, Yoshihisa Kishiyama, Takahiro Asai (NTT DOCOMO) SRW2020-24
A commercial service in fifth-generation (5G) mobile communication system launched in March 2020 at last by using 3.7 GH... [more] SRW2020-24
p.71
SAT, RCS
(Joint)
2020-08-20
14:55
Online Online [Invited Lecture] Extreme Coverage Extension for 6G -- Sky, Sea, and Space --
Yoshihisa Kishiyama (NTT DOCOMO) SAT2020-17 RCS2020-81
 [more] SAT2020-17 RCS2020-81
p.43(SAT), p.19(RCS)
SR, NS, SeMI, RCC, RCS
(Joint)
2020-07-09
13:25
Online Online Considerations on Accuracy Improvement in DOA Estimation Using Deep Learning
Yuya Kase, Takanori Sato, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daisuke Kitayama, Yoshihisa Kishiyama (NTT DOCOMO) RCC2020-5 NS2020-34 RCS2020-68 SR2020-13 SeMI2020-5
Direction of arrival (DOA) estimation of radio waves using a various types of array antennas are generally classified in... [more] RCC2020-5 NS2020-34 RCS2020-68 SR2020-13 SeMI2020-5
pp.19-24(RCC), pp.19-24(NS), pp.61-66(RCS), pp.25-30(SR), pp.13-18(SeMI)
RCS 2020-06-24
15:20
Online Online Interleaver-Linked Receiver Beamforming for IDMA-Based Random Access in TDD System
Yotaro Murakami (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-28
This paper proposes a novel interleaver-linked receiver beamforming in time division duplex (TDD)-interleave division mu... [more] RCS2020-28
pp.31-36
RCS 2020-06-24
15:45
Online Online Interleaver-Linked Receiver Beamforming with Transmitter Channel Equalization in TDD-IDMA-Based Random Access
Yuto Muroki (Tokyo Univ. of Science), Yoshihisa KIshiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-29
This paper proposes a transmission/reception protocol that combines our previously reported interleaver-linked receiver ... [more] RCS2020-29
pp.37-42
NS 2020-04-17
10:20
Online Online [Encouragement Talk] A Reliable Cooperative Operation Platform based on Mobile Edge Computing
Qinghao Liu, Takafumi Morita (UTokyo), Yoshihisa Kishiyama, Kensuke Miyachi, Takahiro Asai (NTT Docomo, INC.), Ping Du, Akihiro Nakao (UTokyo) NS2020-5
In recent years, there has been much research about intelligent traffic system to improve the safety and efficiency. Coo... [more] NS2020-5
pp.43-49
RCS, SR, SRW
(Joint)
2020-03-04
12:35
Tokyo Tokyo Institute of Technology [Technology Exhibit] DOCOMO's Activities Looking to 5G Evolution and 6G
Tatsuki Okuyama, Daisuke Kitayama, Nobuhide Nonaka, Satoshi Suyama, Yoshihisa Kishiyama, Yukihiko Okumura, Takahiro Asai (NTT DOCOMO) RCS2019-330 SR2019-114 SRW2019-60
(To be available after the conference date) [more] RCS2019-330 SR2019-114 SRW2019-60
p.55(RCS), p.7(SR), p.7(SRW)
RCS, SR, SRW
(Joint)
2020-03-05
13:15
Tokyo Tokyo Institute of Technology [Invited Lecture] 5G evolution and 6G
Yoshihisa Kishiyama, Takehiro Nakamura (NTT DOCOMO) RCS2019-357
 [more] RCS2019-357
pp.201-206
IT, SIP, RCS 2020-01-24
10:20
Hiroshima Hiroshima City Youth Center BLER Performance of OFDM Using Faster-than-Nyquist Combined with Low-Rate Turbo Code
Tsubasa Shobudani, Mamoru Sawahashi (Tokyo City Univ), Kenichi Higuchi (Tokyo University of Science), Yoshihisa Kishiyama (NTT DOCOMO) IT2019-62 SIP2019-75 RCS2019-292
 [more] IT2019-62 SIP2019-75 RCS2019-292
pp.149-154
SeMI, RCS, NS, SR, RCC
(Joint)
2019-07-11
13:55
Osaka I-Site Nanba(Osaka) A Study on Close DOA Estimation with Deep Learning
Yuya Kase, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Daisuke Kitayama, Yoshihisa Kishiyama (NTT DOCOMO) RCC2019-39 NS2019-75 RCS2019-132 SR2019-51 SeMI2019-48
Direction of arrival (DOA) estimation of radio waves is applicable to localization of users in mobile communication and ... [more] RCC2019-39 NS2019-75 RCS2019-132 SR2019-51 SeMI2019-48
pp.133-138(RCC), pp.159-164(NS), pp.155-160(RCS), pp.165-170(SR), pp.147-152(SeMI)
OCS, PN, NS
(Joint)
2019-06-21
14:10
Iwate MALIOS(Morioka) Coordinated Operation based on 5G Network and Mobile Edge Computing
Qinghao Liu (UTokyo), Yoshihisa Kishiyama (NTT Docomo, INC.), Kengo Sasaki, Akihiro Nakao (UTokyo) NS2019-41
In recent years, there has been much research on remote control using ultra low latency based on MEC(Mobile/Multiaccess ... [more] NS2019-41
pp.35-40
RCS 2019-06-19
09:30
Okinawa Miyakojima Hirara Port Terminal Building Performance of Physical Channel Multiplexing Using Symbol Repetition in Every Time Slot for Full Duplex
Kazuki Yoshida, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO) RCS2019-37
In full duplex (FD), which improves spectrum efficiency and achieves flexible resource assignment between the uplink and... [more] RCS2019-37
pp.1-6
RCS 2019-06-19
09:40
Okinawa Miyakojima Hirara Port Terminal Building BLER Performance of OFDM with Faster-than-Nyquist Using TDM Based RS Multiplexing
Tsubasa Shobudani, Mitsutaka Anan, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO) RCS2019-38
This paper presents the average block error rate (BLER) performance using time division multiplexing (TDM) based referen... [more] RCS2019-38
pp.7-12
RCS 2019-06-20
09:40
Okinawa Miyakojima Hirara Port Terminal Building Investigation on Efficient Construction Scheme of Peak Cancellation Signals in Complexity-Reduced PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals
Taku Suzuki, Mikihito Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-64
In this paper, we investigate efficient construction schemes of the peak cancellation (PC) signals in the complexity-red... [more] RCS2019-64
pp.161-167
RCS 2019-06-20
09:50
Okinawa Miyakojima Hirara Port Terminal Building Low Latency Hybrid ARQ Method Using Early Retransmission Before Channel Decoding with Multistage Decision
Kentarou Taniyama (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-65
This paper extends our previously reported low latency hybrid automatic repeat request (HARQ) using early retransmission... [more] RCS2019-65
pp.169-174
RCS 2019-06-20
10:00
Okinawa Miyakojima Hirara Port Terminal Building Low Latency HARQ Method Using Early Retransmission Before Channel Decoding Based on Superposition Coding
Koka Miura (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-66
This paper proposes a superposition coding-based early retransmission scheme in our previously reported low latency hybr... [more] RCS2019-66
pp.175-180
RCS 2019-06-20
10:10
Okinawa Miyakojima Hirara Port Terminal Building Performance Evaluation of IDMA-based Random Access Considering User Detection and Channel Estimation
Taiki Tomizawa (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-67
This paper evaluates the performance of the interleave division multiple access (IDMA)-based random access in order to s... [more] RCS2019-67
pp.181-187
RCS 2019-06-20
10:20
Okinawa Miyakojima Hirara Port Terminal Building Investigation on Transmission Power Control Appropriate for IDMA-based Random Access
Tsubasa Miyata (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-68
This paper investigates a transmission power control (TPC) scheme appropriate for interleave division multiple access (I... [more] RCS2019-68
pp.189-195
RCS 2019-06-20
10:30
Okinawa Miyakojima Hirara Port Terminal Building Investigation on Retransmission Scheme in IDMA-Based Random Access
Yuichiro Shake (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-69
This paper investigates a packet retransmission scheme appropriate for an interleave division multiple access (IDMA)-bas... [more] RCS2019-69
pp.197-202
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