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=============================================== Technical Committee on Radio Communication Systems (RCS) Chair: Eiji Okamoto (Nagoya Inst. of Tech.) Vice Chair: Toshihiko Nishimura (Hokkaido Univ.), Tomoya Tandai (Toshiba), Fumihide Kojima (NICT) Secretary: Kazushi Muraoka (NEC), Tetsuya Yamamoto (Panasonic) Assistant: Koichi Adachi (Univ. of Electro-Comm.), Osamu Nakamura (Sharp), Manabu Sakai (Mitsubishi Electric), Masashi Iwabuchi (NTT), Tatsuki Okuyama (NTT DOCOMO) =============================================== Technical Committee on Satellite Telecommunications (SAT) Chair: Hiroyasu Ishikawa (Nihon Univ.) Vice Chair: Tetsushi Ikegami (Meiji Univ.), Takana Kaho (Shonan Inst. of Tech.) Secretary: Megumi Shibuya (KDDI Research), Takuya Okura (NICT) Assistant: Daisuke Goto (NTT), Yuuki Koizumi (NHK) DATE: Thu, Aug 26, 2021 11:00 - 18:30 Fri, Aug 27, 2021 10:30 - 18:25 PLACE: online TOPICS: ---------------------------------------- Thu, Aug 26 AM RCS1 (11:00 - 12:15) ---------------------------------------- (1)/RCS 11:00 - 11:25 Encoding and Decoding of Polar Codes for Frequency Selective Fading Channels Song Huiying, Fukawa Kazuhiko, Chang Yuyuan (Tokyo Tech) (2)/RCS 11:25 - 11:50 Experimental Study on Communication Parameter Control for LPWA Network using Radio Environment Monitoring Hiroaki Sudo, Kazuhiro Kosaka, Akihiko Odani, Noriyuki Gejoh, Takeshi Yasunaga (Panasonic) (3)/RCS 11:50 - 12:15 Two-Stage Precoding with Null-Steering for Spectrum Sharing between HAPS and Terrestrial Systems Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) ----- Lunch ( 60 min. ) ----- ---------------------------------------- Thu, Aug 26 PM Invited Talk (RCS) (13:15 - 14:05) ---------------------------------------- (4) 13:15 - 14:05 [Invited Talk] Airbus support future connectivity by HAPS Zephyr Kazushige Hagiwara (Airbus) ----- Break ( 10 min. ) ----- ---------------------------------------- Thu, Aug 26 PM Special Session 1 (14:15 - 15:05) ---------------------------------------- (5) 14:15 - 14:40 [Special Talk] Space Optical Communications -- An overview of the world situation regarding space optical communication and R&D in JAXA -- Tomohiro Araki (JAXA) (6) 14:40 - 15:05 [Special Talk] R&D on IOWN Space Sensing and/or Radio Access Networks Fumihiro Yamashita (NTT) ----- Break ( 10 min. ) ----- ---------------------------------------- Thu, Aug 26 PM Special Session 2 (15:15 - 16:05) ---------------------------------------- (7) 15:15 - 15:40 [Invited Lecture] Development of HAPS Backhaul System using mmWave Frequency -- HAPS as a NTN System for 5G and Beyond -- Hiromu Kitanozoo, Jun Suzuki (SJC), Yoshihisa Kishiyama, Yuki Hokazono (NTT DOCOMO), Takayuki Sotoyama, Mikihiro Ouchi (Panasonic), Ryu Miura, Hiroyuki Tsuji (NICT) (8) 15:40 - 16:05 [Invited Lecture] Beyond 5G and 6G for extreme coverage extension: Non-Terrestrial Network trends and performance evaluation of HAPS Yuki Hokazono, Yoshihisa Kishiyama, Takahiro Asai (NTT DOCOMO INC.) ----- Break ( 10 min. ) ----- ---------------------------------------- Thu, Aug 26 PM RCS2 (16:15 - 17:30) ---------------------------------------- (9)/RCS 16:15 - 16:40 BER of LDPC-Coded Single-Carrier LOS-MIMO Using FDE in 3GPP TDL Channel Models Aiki Hara, Kana Aono, Mamoru Sawahashi (Tokyo City Uviv.), Norifumi Kamiya (NEC) (10)/RCS 16:40 - 17:05 BLER Performance of Circular 256QAM Schemes Considering Cubic Metric for DFT-Precoded OFDM Yugo Sasaki, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO) (11)/RCS 17:05 - 17:30 Round Trip Time for Control Channel Multiplexing Using In-Band Full Duplex with Synchronous Orthogonal Sequence Assignment Mamoru Sawahashi, Fumiya Makishi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO) ----- Break ( 10 min. ) ----- ---------------------------------------- Thu, Aug 26 PM SAT1 (17:40 - 18:30) ---------------------------------------- (12)/SAT 17:40 - 18:05 Performance evaluations of frequency offset compensation technique for user position detection system using unmanned aerial vehicles Akira Yamanaka, Hiroyasu Ishikawa (Nihon Univ.) (13)/SAT 18:05 - 18:30 Measurement of Off-Axis Radiation Power from NGSO Communication Satellite Operating in the Space Kazuyoshi Shogen, Susumu Nakazawa, Shoji Tanaka (B-SAT) ---------------------------------------- Fri, Aug 27 AM SAT2 (10:30 - 11:45) ---------------------------------------- (14)/SAT 10:30 - 10:55 [Encouragement Talk] The effects of upper air rain area velocities on the rain attenuation characteristics in satellite communications links Yasuyuki Maelawa, Yoshiaki Shibagaki (Osaka Electro-Commun. Univ.) (15)/SAT 10:55 - 11:20 [Encouragement Talk] Study on key-distillation system with adaptive polar codes in free-space quantum key distribution Yuma Yamashita (NITech), Hiroyuki Endo (NICT), Shingo Fujita, Eiji Okamoto (NITech), Hideki Takenaka, Morio Toyoshima (NICT) (16)/SAT 11:20 - 11:45 [Encouragement Talk] Performance analysis of LEO-GEO multi-satellite MIMO transmission method Ayaka Noda, Kohei Ueno, Mamoru Okumura, Eiji Okamoto (NITech), Hiroyuki Tsuji, Amane Miura (NICT) ----- Lunch ( 60 min. ) ----- ---------------------------------------- Fri, Aug 27 PM RCS3 (12:45 - 14:00) ---------------------------------------- (17)/RCS 12:45 - 13:10 Autonomous Distributed Offloading Probability Decision for Wireless Powered-MEC Takuya Kobayashi, Koichi Adachi (UEC) (18)/RCS 13:10 - 13:35 Prior Frequency Band Allocation for Spectrum Sharing based on Interference Distribution Bounpasith Chaleunsouk, Koichi Adachi (UEC) (19)/RCS 13:35 - 14:00 A Study on Intelligent Reflecting Surface (IRS) Aided Cell-Free Network -- IRS Reflection Coefficients Optimization by Quantum Computing -- Takahiro Ohyama (PSNRD), Yuichi Kawamoto, Nei Kato (Tohoku Univ.) ---------------------------------------- Fri, Aug 27 PM RCS (Express Session) (14:00 - 14:20) ---------------------------------------- (20)/RCS 14:00 - 14:20 A study on Non-Coherent MIMO Codes Using the Property of Manifolds Tatsumi Konishi (Aichi Inst. of Tech.) ----- Break ( 10 min. ) ----- ---------------------------------------- Fri, Aug 27 PM RCS4 (14:30 - 16:10) ---------------------------------------- (21)/RCS 14:30 - 14:55 Antenna Configuration and Robust Receiver Design for Scalable Cell-Free Massive MIMO with Capacity Limited Fronthaul Kengo Ando (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Takumi Takahashi (Osaka Univ), Koji Ishibashi (UEC) (22)/RCS 14:55 - 15:20 Resource Allocation and Beamforming Design Considering User Fairness for Cell-Free Massive MIMO System with Dynamic TDD Shuto Fukue (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) (23)/RCS 15:20 - 15:45 Low-Complexity Robust Beamforming Design for Millimeter-Wave Communications with Random Blockage Sota Uchimura (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC) (24)/RCS 15:45 - 16:10 Low Latency Beam-Sweeping for Millimeter-Wave Partially Connected Arrays Andre Saito Guerreiro (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC) ----- Break ( 10 min. ) ----- ---------------------------------------- Fri, Aug 27 PM SAT3 (16:20 - 18:25) ---------------------------------------- (25)/SAT 16:20 - 16:45 GPS Calculated Distance Error Improvement by Received Signal Power and Pseudo Range Estimations in Many Skyscrapers Environments Koichi Saito, Takatoshi Sugiyama (Kogakuin Univ) (26)/SAT 16:45 - 17:10 Adjacent Channel Interference Performances of Spectrum Suppressed Transmission Applied by Clipping Teppei Kanke, Takatoshi Sugiyama (Kogakuin Univ.) (27)/SAT 17:10 - 17:35 Calculated Distance Error Performances According to Receiver Allocations in Relay Type GPS Employing Drones Kouhei Yoshida, Takatoshi Sugiyama (Kogakuin Univ.) (28)/SAT 17:35 - 18:00 A Study of Adaptive Coding and Modulation Scheme suitable for Flexible Satellite Communication System Mitsugu Okawa, Hiromitsu Wakana, Amane Miura (NICT) (29)/SAT 18:00 - 18:25 Measurement on 39 GHz band radio propagation characteristics for coverage extension from the sky Yuki Hokazono, Yoshihisa Kishiyama, Takahiro Asai (NTT DOCOMO INC.), Tetsumi Takamori, Jun Suzuki, Hiromu Kitanozono (SKY Perfect JSAT Corporation) # Information for speakers General Talk (RCS) will have 18 minutes for presentation and 7 minutes for discussion. General Talk (RCS Express) will have 15 minutes for presentation and 5 minutes for discussion. General Talk (SAT) will have 20 minutes for presentation and 5 minutes for discussion. Invited Lecture will have 20 minutes for presentation and 5 minutes for discussion. Special Talk will have 20 minutes for presentation and 5 minutes for discussion. Invited Talk will have 45 minutes for presentation and 5 minutes for discussion. === Technical Committee on Radio Communication Systems (RCS) === # FUTURE SCHEDULE: Thu, Oct 21, 2021 - Fri, Oct 22, 2021: Online [Wed, Aug 18], Topics: Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. Wed, Nov 10, 2021 - Fri, Nov 12, 2021: NBC-Bekkan (Nagasaki) [Thu, Sep 16], Topics: Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. # SECRETARY: Tatsuki Okuyama (NTT DOCOMO) E-mail:r  _ -    === Technical Committee on Satellite Telecommunications (SAT) === # FUTURE SCHEDULE: Thu, Oct 7, 2021 - Fri, Oct 8, 2021: Online [Mon, Aug 16] # SECRETARY: Secretary：  t_- cMegumi Shibuya (KDDI Research) Takuya Okura (NICT) Daisuke Goto (NTT) Yuuki Koizumi (NHK) Last modified: 2021-08-19 15:33:14 |
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