| Presentation | 2021-06-23 MmWave V2I Beam Alignment with Past Beam Information and Time-Series Validation of CVs’ Sum Rate Yuta Yamada, Tomoaki Ohtsuki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In V2I (Vehicle-to-Infrastructure) communication that connects a vehicle and RSUs (Roadside Unit), various information about the vehicles is exchanged with the RSU, which is a BS (Base Station). For 5G V2I communication, the use of millime-ter-wave bands that can secure a wide band is being considered. Since the millimeter-wave band has a large propagation loss in the air, beamforming is used to enable long-distance propagation. In beamforming using a codebook, the beam ejection direction is determined based on a predetermined codebook. However, in V2I communication, it is difficult to search the entire codebook from the viewpoint of calculation time because the channel changes drastically due to mobility. In the con-ventional method for beam alignment in V2I communication, a non-standalone network is assumed, and beam alignment is performed using the position information of surrounding vehicles collected by communication in the low frequency band with the vehicles. However, the performance of this method depends on whether the RSU has the location information of surrounding vehicles. When the connected rate of surrounding vehicles is low, the alignment accuracy deteriorates. In this paper, by using the past beam alignment information for the target vehicle and the time-series validation of the sum rate as the features, even if the peripheral vehicle arrangement cannot be collected in the RSU, the beam alignment is performed only with the information of the allocation target vehicle. suggest. Computer simulation shows that even if the proposed method is RSU and the surrounding vehicle arrangement cannot be collected, the deterioration of allocation accuracy is sup-pressed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | mmWave Communication / V2I Communication / Autonomous Driving |
| Paper # | RCS2021-42 |
| Date of Issue | 2021-06-16 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2021/6/23(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Fumihide Kojima(NICT) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) |
| Secretary | Fumihide Kojima(Panasonic) / Toshihiko Nishimura(NEC) / Tomoya Tandai |
| 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 |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | MmWave V2I Beam Alignment with Past Beam Information and Time-Series Validation of CVs’ Sum Rate |
| Sub Title (in English) | |
| Keyword(1) | mmWave Communication |
| Keyword(2) | V2I Communication |
| Keyword(3) | Autonomous Driving |
| 1st Author's Name | Yuta Yamada |
| 1st Author's Affiliation | Keio University(Keio Univ.) |
| 2nd Author's Name | Tomoaki Ohtsuki |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| Date | 2021-06-23 |
| Paper # | RCS2021-42 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-72 |
| Page | pp.pp.81-86(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-06-16 (RCS) |