| Presentation | 2023-11-15 Performance Evaluation of Beam Search Scheme using Fast Beam Steering Hideya So, Kouki Namegaya, Kazuki Maruta, Takana Kaho, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes a multiple beam searches with fast beam steering within a single synchronization signal block (SSB), to reduce search overhead. Massive Multiple-Input Multiple-Output (Massive MIMO) with multiple antenna elements can increase antenna gain by beamforming to specific user equipment. However, the beam search time increases as the number of beam candidates increases, which is a problem. The proposed antenna combines horizontal beam steering using a Butler matrix and vertical beam steering using a fast phase shifter. Each beam and SSB are transmitted correspondingly in the horizontal direction, and beam search is performed as usual. In the vertical direction, beam steering is performed step by step within a single SSB, and the received power is calculated for each beam to find the beam with the maximum power. Computer simulations show that the proposed beam search scheme can select the horizontal and vertical beams corresponding to the user's location while reducing the number of SSBs relative to the number of beams. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive MIMO / fast beam steering / beam search / fast phase shifter |
| Paper # | RCS2023-156 |
| Date of Issue | 2023-11-08 (RCS) |
| Conference Information | |
| Committee | AP / RCS |
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| Conference Date | 2023/11/15(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kumamoto Prefectural Workers' Welfare Hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Kunio Sakakibara(Nagoya Inst. of Tech.) / Kenichi Higuchi(Tokyo Univ. of Science) |
| Vice Chair | YUAN Qiaowei(Tohoku Inst. of Tech.) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Naoto Ishii(NEC) |
| Secretary | YUAN Qiaowei(Iwate Univ.) / Fumihide Kojima(Mitsubishi Electric) / Osamu Muta(Univ. of Electro-Comm) / Naoto Ishii(Sharp) |
| Assistant | Tomoki Murakami(NTT) / 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 Antennas and Propagation / 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) | Performance Evaluation of Beam Search Scheme using Fast Beam Steering |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | fast beam steering |
| Keyword(3) | beam search |
| Keyword(4) | fast phase shifter |
| 1st Author's Name | Hideya So |
| 1st Author's Affiliation | Shonan Institute of Technology(SIT) |
| 2nd Author's Name | Kouki Namegaya |
| 2nd Author's Affiliation | Shonan Institute of Technology(SIT) |
| 3rd Author's Name | Kazuki Maruta |
| 3rd Author's Affiliation | Tokyo University of Science(TUS) |
| 4th Author's Name | Takana Kaho |
| 4th Author's Affiliation | Shonan Institute of Technology(SIT) |
| Date | 2023-11-15 |
| Paper # | RCS2023-156 |
| Volume (vol) | vol.123 |
| Number (no) | RCS-263 |
| Page | pp.pp.24-28(RCS), |
| #Pages | 5 |
| Date of Issue | 2023-11-08 (RCS) |