| Presentation | 2024-01-19 Coordinated Multi-Point with Hierarchical Active Inference of Position and Propagation Channel Tatsuya Otoshi, Masayuki Murata, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This study focuses on cooperative beamforming among base stations in wireless communication technology and proposes a new approach based on the free energy principle (FEP). Conventionally, the trade-off between accuracy of channel information to be acquired and overhead has been a challenge in beamforming; FEP solves this trade-off by considering the trade-off between the value from observation and the value from action to select the optimal action. This makes it possible to respond to dynamic situations where environmental fluctuations occur by integrating adaptive search, reasoning, and learning. Furthermore, by introducing a hierarchical coordination structure, information sharing among base stations and indirect state sharing among agents are achieved, which improves the efficiency and stability of beamforming. In addition, this study assumes simultaneous execution of communication and real-world sensing by utilizing ISAC (Integrator Sensoring And Communication), and integrates feedback from terminals and terminal location information for channel state estimation, thereby reducing the overhead of The proposed method is based on the assumption of simultaneous communication and real-world sensing by utilizing SINRing And Communication. Simulation results show that the proposed method is effective in improving SINR (Signal to Interference and Noise Ratio) and stabilizing beamforming. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Active Inference / Position Estimation / Propagation Channel Estimation / Coordinated Multi-Point / Free Energy Principle |
| Paper # | IT2023-63,SIP2023-96,RCS2023-238 |
| Date of Issue | 2024-01-11 (IT, SIP, RCS) |
| Conference Information | |
| Committee | SIP / IT / RCS |
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| Conference Date | 2024/1/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Takayuki Nakachi(Ryukyu Univ.) / Tetsuya Kojima(Tokyo Kosen) / Kenichi Higuchi(Tokyo Univ. of Science) |
| Vice Chair | Koichi Ichige(Yokohama National Univ.) / Kiyoshi Nishikawa(okyo Metropolitan Univ.) / Yasuyuki Nogami(Okayama Univ.) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Naoto Ishii(NEC) |
| Secretary | Koichi Ichige(Chiba Univ.) / Kiyoshi Nishikawa(Kogakuin Univ.) / Yasuyuki Nogami(Waseda Univ.) / Fumihide Kojima(Nagaoka Univ. of Tech.) / Osamu Muta(Univ. of Electro-Comm) / Naoto Ishii(Sharp) |
| Assistant | Taichi Yoshida(UEC) / Sayaka Shiota(Tokyo Metropolitan Univ.) / Tetsunao Matsuta(Saitamai Univ.) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Kiichi Tateishi(NTT Docomo) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing / Technical Committee on Information Theory / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Coordinated Multi-Point with Hierarchical Active Inference of Position and Propagation Channel |
| Sub Title (in English) | |
| Keyword(1) | Active Inference |
| Keyword(2) | Position Estimation |
| Keyword(3) | Propagation Channel Estimation |
| Keyword(4) | Coordinated Multi-Point |
| Keyword(5) | Free Energy Principle |
| 1st Author's Name | Tatsuya Otoshi |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Masayuki Murata |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2024-01-19 |
| Paper # | IT2023-63,SIP2023-96,RCS2023-238 |
| Volume (vol) | vol.123 |
| Number (no) | IT-338,SIP-339,RCS-340 |
| Page | pp.pp.181-186(IT), pp.181-186(SIP), pp.181-186(RCS), |
| #Pages | 6 |
| Date of Issue | 2024-01-11 (IT, SIP, RCS) |