| Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
| BCT, IEEE-BT |
2022-02-17
13:00 |
Online |
Online |
Autoencoder-based Pilot Pattern Design for CDL Channels
Yuta Yamada, Tomoaki Ohtsuki (Keio Univ.) |
In the pilot-based channel estimations, a large number of pilot signals enable an improvement in the channel estimation ... [more] |
BCT2022-13
pp.1-4 |
| BCT, IEEE-BT |
2022-02-17
13:20 |
Online |
TBD |
Channel Estimation to Mitigate Channel Aging in Massive MIMO with Pilot Contamination
Hiroki Hirose, Tomoaki Ohtsuki (Keio Univ.) |
In a massive multiple-input mltiple-output (MIMO) system based on time division duplex (TDD), the channel state informat... [more] |
BCT2021-12
pp.13-16 |
| BCT, IEEE-BT |
2022-02-17
13:40 |
Online |
TBD |
Polar Code Search Method using Tabu Search and Bhattacharyya Parameter
Akira Yamada, Tomoaki Ohtsuki (Keio Univ.) |
[more] |
BCT2021-13
pp.17-20 |
| BCT, IEEE-BT |
2020-02-20
14:15 |
Shiga |
|
Learning-Based Channel Estimation for Massive MIMO with Pilot Contamination and Its Impact of Model Mismatch in Training
Hiroki Hirose, Tomoaki Ohtsuki (Keio Univ.) |
In massive multiple-input multiple-output (MIMO), a base station (BS) needs accurate estimation of channel state informa... [more] |
BCT2020-24
pp.13-16 |
| BCT, IEEE-BT |
2020-02-20
14:35 |
Shiga |
|
Discrete Polar Decoder with Reduced Hardware and Computational Complexity by Quantization using Information Bottleneck Method
Akira Yamada, Tomoaki Ohtsuki (Keio Univ.) |
Polar codes are attracting much attention and being used for control channels of the 5th generation of mobile communicat... [more] |
BCT2020-25
pp.17-20 |
| BCT, IEEE-BT |
2020-02-20
14:55 |
Shiga |
|
Learning and Analysis of Damping Factor in Massive MIMO Detection using BP Algorithm with Node Selection
Junta Tachibana, Tomoaki Ohtsuki (Keio Univ.) |
[more] |
BCT2020-26
pp.21-24 |
| BCT, IEEE-BT, HOKKAIDO |
2018-07-26
13:40 |
Hokkaido |
Hokkaido Univ. |
Channel estimation using spatial interpolation in Massive MIMO
Masumi Kuriyama, Tomoaki Ohtsuki (Keio Univ.) |
Massive MIMO (multiple-input multiple-output) is a technology that uses many antennas at the base station, and can reali... [more] |
BCT2018-60
pp.1-4 |
| BCT, IEEE-BT |
2018-02-22
16:15 |
Toyama |
Kanponoyado-Toyama |
Joint Maximum A Posteriori Estimation of Channel and Interference Power with Channel Covariance Estimation for OFDM Transmission
Masahiro Kudo, Tomoaki Ohtsuki (Keio Univ.) |
Superposed multicarrier transmission has been proposed as one of the techniques to improve frequency utilization efficie... [more] |
BCT2018-31
pp.29-32 |
| BCT, IEEE-BT [detail] |
2017-02-23
13:40 |
Aichi |
Kanpo-no-yado Chita-mihama |
QoE-aware Video Steaming Transmission Optimization Method for Joint Bit Rate and Playout Threshold Control
Yan Qi, Tomoaki Ohtsuki (Keio Univ) |
[more] |
BCT2017-24
pp.5-8 |
| BCT, IEEE-BT |
2015-06-05
14:25 |
Tokyo |
mmbi, Inc. |
Superposed Multicarrier Transmission
Tomoaki Ohtsuki (Keio Univ.), Jun Mashino (NTT) |
[more] |
BCT2015-46
pp.9-12 |
| BCT, IEEE-BT |
2015-06-05
14:50 |
Tokyo |
mmbi, Inc. |
Scalable and Cost-effective Live Video Encoding and Delivery in Cloud
Koustubh Gaikwad, Tomoaki Ohtsuki (Keio Univ.) |
Live media streaming has become one of the most important applications over the Internet. However, having an all-round s... [more] |
BCT2015-47
pp.13-16 |
| BCT, IEEE-BT |
2015-02-19
15:30 |
Mie |
|
A study on log-likelihood ratio setting for superposed multicarrier transmission
Yohei Shibata, Tomoaki Ohtsuki (Keio Univ.), Jun Mashino, Takatoshi Sugiyama (NTT) |
Superposed multicarrier transmission scheme is known to improve frequency utilization efficiency where several wireless ... [more] |
BCT2015-29
pp.17-20 |
| BCT, IEEE-BT |
2015-02-19
15:55 |
Mie |
|
Scalable and Cost Effective Live Video Encoding in Cloud
Koustubh Gaikwad, Tomoaki Ohtsuki (Keio Univ.) |
[more] |
BCT2015-30
pp.21-24 |
| BCT, IEEE-BT |
2014-02-20
15:10 |
Ishikawa |
|
Effects of Multiple Secondary Transmit Beamformings on Spectrum Leasing for Primary Secure Communications
Masahiro Endo, Tomoaki Ohtsuki (Keio Univ.), Takeo Fujii (Univ. of Electro-Comm.), Osamu Takyu (Shinshu Univ.) |
[more] |
BCT2014-38
pp.21-24 |
| BCT, IEEE-BT |
2013-02-20
15:35 |
Okinawa |
|
Performance Analysis of Superposed Multicarrier Transmission Using Robust LLR
Naotoshi Yoda, Genji Hayashi, Tomoaki Ohtsuki (Keio Univ.), Jun Mashino, Takatoshi Sugiyama (NTT) |
Superposed multicarrier transmission scheme is known to improve frequency utilization efficiency where several wireless ... [more] |
BCT2013-45
pp.29-32 |
| BCT, IEEE-BT |
2012-02-24
14:15 |
Shizuoka |
Kanpo no yado Yaidu |
High Power Efficiency Transmission Using Game Theory for AF Cooperative Communication
Takuya Yamada, Tomoaki Ohtsuki (Keio Univ.) |
Cooperative communication has been studied as a way to improve reliability of networks compared to conventional direct t... [more] |
BCT2012-34
pp.13-16 |
| BCT, IEEE-BT |
2012-02-24
14:40 |
Shizuoka |
Kanpo no yado Yaidu |
Orthogonal Beamforming Using Gram-Schmidt Orthogonalization for Downlink CoMP System
Kunitaka Matsumura, Tomoaki Ohtsuki (Keio Univ.) |
[more] |
BCT2012-35
pp.17-20 |