| Presentation | 2022-11-17 A study on relaying achieving low latency and high capacity in the millimeter wave bands Masahiro Takigawa, Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Yoshiaki Amano, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper evaluates the link-level throughput characteristics when Line-of-Sight MIMO(LoS-MIMO) is applied between a relay station (RS) and a base station (BS) in a low-latency, high-capacity relay scheme. In recent years, the use of millimeter wave bands such as the 28 GHz band has been progressing for high-capacity transmission. However, millimeter wave bands have the problem of high propagation loss. Relay methods such as RF repeaters and IABs have been proposed, but they are not suitable for low latency and large capacity data transmission. In response to this problem, the authors have proposed a relay scheme in which signals sent from a user terminal in frequency multiplexing are converted to spatial multiplexing at the RS. Since spatial multiplexing in the millimeter wave band is mainly based on direct waves, LoS-MIMO must be applied between the RS and the BS. However, since the distance between transmitting and receiving antenna elements is optimized for a certain communication distance, the orthogonality of the channel matrix deviates and the channel capacity drops drastically. This is a problem when considering drones and other mobile RSs. In this paper, we will discuss how such orthogonality of the channel matrix affects link-level throughput characteristics using a link-level simulator. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / Beyond 5G / Millimeter wave / Relay communication / LoS-MIMO |
| Paper # | RCS2022-176 |
| Date of Issue | 2022-11-08 (RCS) |
| Conference Information | |
| Committee | RCS / AP |
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| Conference Date | 2022/11/15(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu University, and Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Hiroshi Yamada(Niigata Univ.) |
| Vice Chair | Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Mitoshi Fujimoto(Fukui Univ) |
| Secretary | Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Mitoshi Fujimoto(National Defense Academy) |
| Assistant | Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Tomoki Murakami(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on relaying achieving low latency and high capacity in the millimeter wave bands |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | Beyond 5G |
| Keyword(3) | Millimeter wave |
| Keyword(4) | Relay communication |
| Keyword(5) | LoS-MIMO |
| 1st Author's Name | Masahiro Takigawa |
| 1st Author's Affiliation | KDDI Research(KDDI Research, Inc.) |
| 2nd Author's Name | Ryochi Kataoka |
| 2nd Author's Affiliation | KDDI Research(KDDI Research, Inc.) |
| 3rd Author's Name | Takeo Ohseki |
| 3rd Author's Affiliation | KDDI Research(KDDI Research, Inc.) |
| 4th Author's Name | Taishi Watanabe |
| 4th Author's Affiliation | KDDI Research(KDDI Research, Inc.) |
| 5th Author's Name | Yoshiaki Amano |
| 5th Author's Affiliation | KDDI Research(KDDI Research, Inc.) |
| Date | 2022-11-17 |
| Paper # | RCS2022-176 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-252 |
| Page | pp.pp.124-129(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-11-08 (RCS) |