Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SAT, KOSST |
2022-10-06 15:05 |
Fukuoka |
(Primary: On-site, Secondary: Online) |
Satellite Transmission Experiment for Improvement of Link Margin of APSK Modulation Signal toward UHDTV Satellite Broadcasting for 12-GHz Band Ryota Akiyama, Yuki Koizumi, Shinsuke Yokozawa, Masaaki Kojima, Masafumi Nagasaka, Masashi Kamei (NHK), Susumu Nakazawa, Shuji Kimura, Motoki Matsubara, Hayato Nishida, Shoji Tanaka (B-SAT) SAT2022-46 |
As for the satellite transmission scheme used for 4K/8K ultra-high definition television (UHDTV), ISDB-S3 which supports... [more] |
SAT2022-46 pp.12-15 |
IT, EMM |
2022-05-18 10:25 |
Gifu |
Gifu University (Primary: On-site, Secondary: Online) |
A method of assigning bit labeling for delayed bit-interleaved coded modulation Gou Hosoya (Waseda Univ.) IT2022-9 EMM2022-9 |
We show the capacity of delayed bit-interleaved coded modulation (DBICM) with a small delay on a two-dimensional signal ... [more] |
IT2022-9 EMM2022-9 pp.44-49 |
SAT |
2021-10-08 15:45 |
Online |
Online |
Study on digital pre-distortion with I/O interfaces for analogue baseband signal over satellite channel Masaaki Kojima, Yuki Koizumi, Masashi Kamei (NHK) SAT2021-52 |
Non-linear distortion caused by the satellite transponder negatively impacts multilevel modulation schemes. We studied d... [more] |
SAT2021-52 pp.47-50 |
SAT |
2020-12-11 10:25 |
Online |
Online |
Study on Effects of Compensation Technique for Distortion by 12-GHz-band Broadcasting Satellite Transponder Masaaki Kojima, Masashi Kamei, Hisashi (NHK) SAT2020-26 |
[more] |
SAT2020-26 pp.19-23 |
SAT |
2019-10-10 16:10 |
Fukuoka |
JR HAKATA CITY {10F RoomA+B} |
Comparative Study of Digital Pre-Distortion for 32APSK by Hardware Experiments and Numerical Calculations Masaaki Kojima, Yuki Koizumi, Yoichi Suzuki, Hisashi Sujikai (NHK) SAT2019-53 |
The satellite transmission standard for 4K/8K ultra high definition television (UHDTV) services was recommended in ITU-R... [more] |
SAT2019-53 pp.31-35 |
SANE, SAT (Joint) |
2019-02-14 11:15 |
Kagoshima |
Tanegashima Island |
Evaluation of Satellite Transmission Characteristics of ISDB-S3 for 4K/8K Broadcasting Shinsuke Yokozawa, Masaaki Kojima, Masashi Kamei, Kazunori Yokohata (NHK), Hayato Nishida (B-SAT), Hisashi Sujikai (NHK) SAT2018-77 |
4K/8K broadcasting with the BSAT-4a satellite began in Dec. 2018. This broadcasting adopts the ISDB-S3 technical standar... [more] |
SAT2018-77 pp.115-118 |
SAT |
2018-10-12 13:45 |
Overseas |
KARI |
Performance Comparison of Digital Pre-Distortion Techniques over Satellite Channel Masaaki Kojima, Yuki Koizumi, Yoichi Suzuki, Hisashi Sujikai (NHK) SAT2018-54 |
Aiming for practical usage of 32APSK in 4K/8K satellite broadcasting, we have developed a digital pre-distortion techniq... [more] |
SAT2018-54 pp.67-71 |
AP, SANE, SAT (Joint) |
2018-07-19 09:20 |
Hokkaido |
Hokkaido Univ. |
Prototype and Evaluation Performance of the Transmitter and Receiver with Set-Partitioning 64APSK Coded Modulation Yuki Koizumi, Yoichi Suzuki, Masaaki Kojima, Hisashi Sujikai (NHK) SAT2018-17 |
We are researching on a set-partitioning 64APSK coded modulation for the purpose of expanding channel capacity for satel... [more] |
SAT2018-17 pp.37-42 |
AP, SANE, SAT (Joint) |
2018-07-19 09:45 |
Hokkaido |
Hokkaido Univ. |
Performance Improvement by Digital Pre-Distortion Technique for 32APSK over Satellite Transmission Masaaki Kojima, Yoichi Suzuki, Yuki Koizumi, Hisashi Sujikai (NHK) SAT2018-18 |
4K/8K test broadcasting by satellite started on August 1st 2016, and 4K/8K commercial broadcasting will start on Decembe... [more] |
SAT2018-18 pp.43-48 |
AP, SANE, SAT (Joint) |
2018-07-19 10:10 |
Hokkaido |
Hokkaido Univ. |
Effect of Nonlinear Distortion Compensation for 32APSK on High Throughput Satellite Communications System Mitsugu Ohkawa, Hiromitsu Wakana, Amane Miura (NICT) SAT2018-19 |
We have studied about nonlinear compensation for multi-level modulation scheme (32APSK: Amplitude and Phase Shift Keying... [more] |
SAT2018-19 pp.49-54 |
SANE |
2018-06-22 15:40 |
Ibaraki |
Tsukuba Space Center, JAXA |
VCM System with Only Variable Modulation Scheduling According to Satellite Elevation Angle Chihaya Kato, Mitsuhiro Nakadai, Yajima Masanobu (JAXA) SANE2018-19 |
Recently, researches and developments of higher-order modulation and broadband telecommunication systems become more int... [more] |
SANE2018-19 pp.33-37 |
SAT, SANE (Joint) |
2018-02-23 13:20 |
Yamaguchi |
The Yamaguchi Chamber of Commerce and Industry |
Comparison of Transmission Performance for 32APSK over TWTA and LTWTA Masaaki Kojima, Yoichi Suzuki, Yuki Koizumi, Hisashi Sujikai, Shoji Tanaka (NHK) SAT2017-68 |
4K/8K test broadcasting for satellite have been started since August 2016. 4K/8K broadcasting services for satellite wil... [more] |
SAT2017-68 pp.65-68 |
RCS, SAT (Joint) |
2017-08-18 15:45 |
Niigata |
Niigata Univ. |
[Encouragement Talk]
Performance improvement of Set-Partitioning 64APSK coded modulation optimizing signal constellation points Yuki Koizumi, Yoichi Suzuki, Masaaki Kojima, Hisashi Sujikai, Shoji Tanaka (NHK) SAT2017-36 |
We are engaged in researching set-partitioning multi-level coded modulation for the purpose of increasing the capacity o... [more] |
SAT2017-36 pp.81-85 |
SAT |
2016-10-13 15:15 |
Overseas |
Incheon Univ. Songdo R104, Auditorium & Performing Place |
A study on 64APSK Coded Modulation Yuki Koizumi, Yoichi Suzuki, Masaaki Kojima, Kyoichi Saito, Shoji Tanaka (NHK) SAT2016-55 |
We’re engaged in improving the performance of 64APSK coded modulation with the purpose of further increasing transmissio... [more] |
SAT2016-55 pp.51-56 |
AP, SAT, SANE (Joint) |
2016-07-21 13:50 |
Hokkaido |
Otaru port marina |
APSK Performance Verification for Equalization Using Satellite Characteristics Masaaki Kojima, Yoichi Suzuki, Yuki Koizumi, Kyoichi Saito, Shoji Tanaka (NHK) SAT2016-17 |
A technical standard for a satellite transmission system (ARIB STD-B44 ver. 2.0) has been drawn up for 4K/8K UHDTV servi... [more] |
SAT2016-17 pp.35-38 |
SAT, SANE (Joint) |
2016-02-16 15:25 |
Hiroshima |
Hiroshima Institute of Technology |
The Experiments of 505 Mbps Downlink Communication from the 50 kg Class Satellite using 64APSK and Future Plans Tomoya Fukami, Hiromi Watanabe (UTokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Naohiko Iwakiri (NICT), Takahiro Shinke, Kaname Kojima (Addnics), Koichi Kawamoto (Kawamoto), Osamu Shigeta, Hitoshi Nunomura (AI Electronics), Yasuaki Kanda (Antenna Giken) SANE2015-111 |
A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore... [more] |
SANE2015-111 pp.25-30 |
AP, RCS, WPT, SAT (Joint) |
2015-11-04 14:30 |
Okinawa |
Okinawa Prefectural Museum & Art Museum |
Transmission experiments for UHDTV using 12 GHz band satellite broadcasting Masaaki Kojima, Yoichi Suzuki, Masashi Kamei, Yuki Koizumi, Kyoichi Saito, Shoji Tanaka (NHK), Hayato Nishida (B-SAT) SAT2015-49 |
A technical standard for a satellite transmission system (ARIB STD-B44 ver. 2.0) has been drawn up for 4K/8K UHDTV servi... [more] |
SAT2015-49 pp.13-16 |
SAT |
2015-10-08 13:20 |
Osaka |
Osaka University Nakanoshima Center |
16APSK/16QAM-OFDM 3.2Gbps RF Signal Direct-Processing Transmitter and Receiver Communication Experiments Using WINDS Satellte Kenji Suzuki (NICT), Masatomo Yahata, Midori Kato, Tetsuya Watanabe, Kenichi Hoshi, Tamio Okui, Shiro Yoshikawa (NEC), Masayoshi Yoneda (NEC Space Technorogies), Yoshiki Arakawa, Toshio Asai, Takashi Takahashi, Morio Toyoshima (NICT) SAT2015-40 |
The National Institute of Information and Communications Technology (NICT) has experimented using a 1,244 Mbps high-spee... [more] |
SAT2015-40 pp.137-140 |
SANE, SAT (Joint) |
2015-02-18 15:50 |
Okinawa |
Okinawaken Shichoson Jichikaikan |
[Special Talk]
On-Orbit Demonstration of the X-band 348 Mbps Communication System for the Nano Satellite: Hodoyoshi-4 Tomoya Fukami, Hiromi Watanabe (UTokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Naohiko Iwakiri (NICT), Takahiro Shinke, Kaname Kojima (Addnics), Koichi Kawamoto (Kawamoto), Osamu Shigeta, Hitoshi Nunomura (AI Electronics), Yasuaki Kanda (Antenna Giken) SANE2014-132 SAT2014-58 |
A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore... [more] |
SANE2014-132 SAT2014-58 pp.25-30(SANE), pp.43-48(SAT) |
SIP, RCS |
2015-01-23 14:35 |
Okayama |
Okayama Univ. |
Performance Evaluation of a Reduced-Complexity Detection Based on Symbol Distribution Approximation for a 3x3 MIMO Spatial Multiplexing System Kento Yoshizawa, Hideki Ochiai (YNU) SIP2014-110 RCS2014-298 |
We evaluate the performance of the recently proposed MIMO detection scheme based on symbol distribution approximation (S... [more] |
SIP2014-110 RCS2014-298 pp.169-174 |