| Presentation | 2021-10-21 A Study on Intelligent Reflecting Surface (IRS) Aided Cell-Free Network Takahiro Ohyama, Yuichi Kawamoto, Nei Kato, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The IRS (Intelligent Reflecting Surface), which enables control of propagation characteristics, is attracting attention as a technology that greatly improves energy utilization efficiency in 6th generation mobile communication systems. In addition, cell-free networks are being actively researched as a new network architecture that solves the problem of inter-cell interference in conventional cellular networks. In this report, we consider a cell-free network that includes the IRS. We propose a QUBO formulation to optimize IRS reflection coefficients by quantum computing when performing MIMO communication with users in a shadowing environment. The simulation results show the effectiveness of the proposed QUBO formulation and clarify that MIMO can achieve more efficient communication than OFDMA and TDMA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Intelligent Reflecting Surface (IRS) / Cell-Free Network / Reflection Coefficients Optimization / Quantum Computing |
| Paper # | RCS2021-125 |
| Date of Issue | 2021-10-14 (RCS) |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2021/10/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Intelligent Reflecting Surface (IRS) Aided Cell-Free Network |
| Sub Title (in English) | IRS Reflection Coefficients Optimization by Quantum Computing for MIMO Channel Capacity Maximization |
| Keyword(1) | Intelligent Reflecting Surface (IRS) |
| Keyword(2) | Cell-Free Network |
| Keyword(3) | Reflection Coefficients Optimization |
| Keyword(4) | Quantum Computing |
| 1st Author's Name | Takahiro Ohyama |
| 1st Author's Affiliation | Panasonic System Networks R&D Lab. Co., Ltd.(PSNRD) |
| 2nd Author's Name | Yuichi Kawamoto |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Nei Kato |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2021-10-21 |
| Paper # | RCS2021-125 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-210 |
| Page | pp.pp.43-48(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-10-14 (RCS) |