| Presentation | 2023-03-01 A Proposal of Reference Signal on the Grassmann Manifold Naoki Endo, Hiroki Iimori, Chandan Pradhan, Szabolcs Malomsoky, Naoki Ishikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the 5G NR standard, a training method using demodulation reference signals (DM-RS) is adopted for channel estimation, but the frequent transmission of DM-RS may cause a decrease in spectral efficiency, especially in high-mobility scenarios. In this manuscript, we propose the concept of a data-carrying reference signal (DC-RS) that simultaneously estimates data symbols and channel coefficients, where symbols on the Grassmann manifold convey additional information and assist in channel estimation. We also use equivalence relations on the manifold to improve the accuracy of channel estimation and group the Grassmann constellation to reduce its detection complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G NR / channel estimation / Grassmann manifold / noncoherent detection |
| Paper # | RCS2022-267 |
| Date of Issue | 2023-02-22 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2023/3/1(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(Tokai Univ.) / Kazuto Yano(NTT) / Keiichi Mizutani(KUT) / Kentaro Saito(NIigata Univ.) / Hirokazu Sawada |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Mai Ohta(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) / Maki Arai(Nihon Univ.) / Yuichi Masuda(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of Reference Signal on the Grassmann Manifold |
| Sub Title (in English) | |
| Keyword(1) | 5G NR |
| Keyword(2) | channel estimation |
| Keyword(3) | Grassmann manifold |
| Keyword(4) | noncoherent detection |
| 1st Author's Name | Naoki Endo |
| 1st Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 2nd Author's Name | Hiroki Iimori |
| 2nd Author's Affiliation | Ericsson Research Japan(ERJ) |
| 3rd Author's Name | Chandan Pradhan |
| 3rd Author's Affiliation | Ericsson Research Japan(ERJ) |
| 4th Author's Name | Szabolcs Malomsoky |
| 4th Author's Affiliation | Ericsson Research Japan(ERJ) |
| 5th Author's Name | Naoki Ishikawa |
| 5th Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| Date | 2023-03-01 |
| Paper # | RCS2022-267 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-399 |
| Page | pp.pp.118-123(RCS), |
| #Pages | 6 |
| Date of Issue | 2023-02-22 (RCS) |