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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 204件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2019-06-20
09:30
Okinawa Miyakojima Hirara Port Terminal Building NOMA-based Multiplexing Method of Downlink Service Channels to Maximize Integrated System Throughput
Teruaki Shikuma (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science)
We propose a novel non-orthogonal multiple access (NOMA)-based optimal multiplexing method of multiple downlink service ... [more] RCS2019-63
pp.155-160
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)
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)
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)
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)
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)
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)
This paper investigates a packet retransmission scheme appropriate for an interleave division multiple access (IDMA)-bas... [more] RCS2019-69
pp.197-202
RCS 2019-06-20
10:50
Okinawa Miyakojima Hirara Port Terminal Building Decentralized Probabilistic Frequency-Block Activation Control for Inter-cell Interference Coordination and Traffic Load Balancing
Fumiya Ishikawa (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
We propose a decentralized probabilistic frequency-block activation control method for cellular downlink. The aim of the... [more] RCS2019-70
pp.203-208
RCS 2019-06-20
11:00
Okinawa Miyakojima Hirara Port Terminal Building Online Probabilistic Activation Control of Base Stations Considering Both Uplink and Downlink System Throughput
Naoki Uji (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
We propose an online probabilistic activation control of base stations (BSs) considering both uplink and downlink system... [more] RCS2019-71
pp.209-214
RCS 2019-06-21
15:25
Okinawa Miyakojima Hirara Port Terminal Building Complexity-Reduced Algorithm for Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals
Mikihito Suzuki, Taku Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we propose a computational complexity-reduced algorithm for our previously reported adaptive peak-to-aver... [more] RCS2019-97
pp.353-358
RCS, SIP, IT 2019-02-01
09:25
Osaka Osaka University Inter-Base Station Cooperative Scheduling Method Among Multiple Service Channels to Maximize Integrated System Throughput
Tatsuki Sakai (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we propose an inter-base station (BS) cooperative scheduling method among terminals in multiple service c... [more] IT2018-53 SIP2018-83 RCS2018-260
pp.103-108
RCS 2018-10-19
13:55
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Lecture] Analysis on the Performance of Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Massive MIMO-OFDM Signals
Kenichi Higuchi (Tokyo Univ. of Science)
This paper analyzes the impact of the applied beamforming (BF) method on the performance of our previously reported adap... [more] RCS2018-172
pp.115-120
RCS 2018-06-20
15:10
Nagasaki Nagasaki University Improving Convergence Rate of Frequency Block-Dependent Online Probabilistic Activation Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks
Keiki Shimada (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we propose an improved method of online probabilistic frequency block-dependent activation/deactivation c... [more] RCS2018-44
pp.55-60
RCS 2018-06-20
15:20
Nagasaki Nagasaki University Frequency Block-Dependent Online Probabilistic Transmission Power Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks
Ryo Inaba (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we extend our previously reported online probabilistic transmission power control of base stations (BSs) ... [more] RCS2018-45
pp.61-66
RCS 2018-06-20
15:30
Nagasaki Nagasaki University Adaptive Control of Step Size in Update of Activation Probability in Online Probabilistic Base-Station Activation Control Method
Ryota Ochiai (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we propose an adaptive control of step size in update of the activation probability in our previously rep... [more] RCS2018-46
pp.67-71
RCS 2018-06-20
15:40
Nagasaki Nagasaki University Channel-Dependent Dynamic Frequency Bandwidth Allocation Method among Service Channels for Integrated System Throughput Maximization
Tatsuki Sakai (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science)
The fifth generation mobile communication system is expected to support various wireless communication services such as ... [more] RCS2018-47
pp.73-78
RCS 2018-06-22
09:30
Nagasaki Nagasaki University Combination of Beamforming with Per-Antenna Power Constraint and Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Multiuser Massive MIMO-OFDM Transmission
Mikihito Suzuki (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we investigate a combination of the beamforming (BF) with per-antenna power limitation and adaptive peak-... [more] RCS2018-63
pp.167-172
RCS 2018-06-22
11:10
Nagasaki Nagasaki University Investigations on Structure of Interference Canceller in IDMA-based Random Access
Masayuki Kawata (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
This paper studies various structures of interference canceller appropriate for interleave division multiple access (IDM... [more] RCS2018-72
pp.219-224
RCS 2018-06-22
11:20
Nagasaki Nagasaki University Performance Evaluation of IDMA-based Random Access with Various Frequency Block Structures
Koki Fukushima (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
This paper studies an interleave division multiple access (IDMA)-based random access in order to support massive machine... [more] RCS2018-73
pp.225-229
AP, RCS
(Joint)
2017-11-08
09:00
Fukuoka Fukuoka University Frequency Block-Dependent Online Probabilistic Activation Control of Base Stations Based on Observed System Throughput in Heterogeneous Networks
Akira Ujiie, Kenichi Higuchi (Tokyo Univ. of Science)
In this paper, we extend our previously reported online probabilistic activation/deactivation control of pico-base stati... [more] RCS2017-204
pp.1-6
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