| Presentation | 2021-08-27 Low Latency Beam-Sweeping for Millimeter-Wave Partially Connected Arrays Andre Saito Guerreiro, Hiroki Iimori, Koji Ishibashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Millimeter-wave communication has been widely studied due to its potential to attain higher data rates by providing a significantly larger spectrum than lower frequency bands such as the 800MHz band. However, it imposes severe propagation loss on the channel gains. To this end, hybrid arrays are commonly used in millimeter-wave systems. In our work, we propose an algorithm that generates the transmitting beamforming codebook for partially connected hybrid arrays exploring the concept of the worst-case channel, which reduces non-negligible latency due to the initial beam-sweeping before data transmission by minimizing the number of transmitted beams while ensuring a minimum signal-to-noise ratio (SNR) level between a common base-station (BS) and user equipments (UEs). Simulations are performed to show the efficiency of the proposed beam codebook design in lowering latency and maintaining minimal SNR. We also show via simulations that the performance gap between fully and partially connected hybrid arrays is marginal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Millimeter wave communication / beam sweeping / partially connected hybrid arrays / beamforming codebook |
| Paper # | RCS2021-117 |
| Date of Issue | 2021-08-19 (RCS) |
| Conference Information | |
| Committee | RCS / SAT |
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| Conference Date | 2021/8/26(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Hiroyasu Ishikawa(Nihon Univ.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Tetsushi Ikegami(Meiji Univ.) / Takana Kaho(Shonan Inst. of Tech.) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(KDDI Research) / Tetsushi Ikegami(NICT) / Takana Kaho |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Daisuke Goto(NTT) / Yuuki Koizumi(NHK) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Satellite Telecommunications |
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| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low Latency Beam-Sweeping for Millimeter-Wave Partially Connected Arrays |
| Sub Title (in English) | |
| Keyword(1) | Millimeter wave communication |
| Keyword(2) | beam sweeping |
| Keyword(3) | partially connected hybrid arrays |
| Keyword(4) | beamforming codebook |
| 1st Author's Name | Andre Saito Guerreiro |
| 1st Author's Affiliation | University of Electro-Communications(UEC) |
| 2nd Author's Name | Hiroki Iimori |
| 2nd Author's Affiliation | Jacobs University(JUB) |
| 3rd Author's Name | Koji Ishibashi |
| 3rd Author's Affiliation | University of Electro-Communications(UEC) |
| Date | 2021-08-27 |
| Paper # | RCS2021-117 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-153 |
| Page | pp.pp.97-102(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-08-19 (RCS) |