| Presentation | 2022-07-15 Blockage prediction for millimeter-wave communications based on people flow data Hirofumi Nakajo, Takeo Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Thanks to the high bandwidth available at millimeter-wave (mmWave), mmWave communications support high data rates and large traffic volumes.However, mmWave communications are vulnerable to sudden blockage of the line-of-sight environment.Various discussions have been held on this issue because ensuring communication reliability is an important issue.In this paper, we predict the future state of pedestrians, the main cause of the blockage, utilizing time-series data of people flow, such as pedestrian flow and density, in a certain space.The average walking speed in the space is calculated by giving the predicted values of people flow to a pedestrian model used in urban space design.Furthermore, we define the occurrence of blockage as the existence of a person in the first Fresnel zone, and based on the above information, we calculate the estimated value of the time-series data of the duration of the blockage in the space. In this paper, we evaluate the above methods via human blockage experimental measurements and computer simulations.The estimation accuracy of the true duration of blockage obtained from the experimental measurements and that derived from the pedestrian model and the first Fresnel zone are evaluated.In the computer simulation, open data of people flow is utilized to predict the time series, and the effect of the prediction error of the people flow on the estimation accuracy of the duration of the blockage is clarified. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Millimeter-wave communications / blockage prediction / people flow data / pedestrians |
| Paper # | SR2022-42 |
| Date of Issue | 2022-07-06 (SR) |
| Conference Information | |
| Committee | NS / SR / RCS / SeMI / RCC |
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| Conference Date | 2022/7/13(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Kanazawa Theatre + Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Distributed Wireless Network, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Chair | Tetsuya Oishi(NTT) / Suguru Kameda(Hiroshima Univ.) / Kenichi Higuchi(Tokyo Univ. of Science) / Koji Yamamoto(Kyoto Univ.) / Shunichi Azuma(Nagoya Univ.) |
| Vice Chair | Takumi Miyoshi(Shibaura Insti of Tech.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Kazuya Monden(Hitachi) / Yasunori Owada(NICT) / Shunsuke Saruwatari(Osaka Univ.) / Shunichi Azuma(Hokkaido Univ.) / Koji Ishii(Kagawa Univ.) |
| Secretary | Takumi Miyoshi(NTT) / Osamu Takyu(Kogakuin Univ.) / Kentaro Ishidu(Mie Univ.) / Kazuto Yano(Tokai Univ.) / Tomoya Tandai(NTT) / Fumihide Kojima(Panasonic) / Osamu Muta(Univ. of Electro-Comm) / Kazuya Monden(Sharp) / Yasunori Owada(NTT DOCOMO) / Shunsuke Saruwatari(Tokyo Univ. of Agri. and Tech.) / Shunichi Azuma(Osaka Univ.) / Koji Ishii(CRIEPI) |
| Assistant | Kotaro Mihara(NTT) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Yuki Matsuda(NAIST) / Akihito Taya(Aoyama Gakuin Univ.) / Takeshi Hirai(Osaka Univ.) / SHAN LIN(NICT) / Ryosuke Adachi(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems / Technical Committee on Smart Radio / Technical Committee on Radio Communication Systems / Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Reliable Communication and Control |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Blockage prediction for millimeter-wave communications based on people flow data |
| Sub Title (in English) | |
| Keyword(1) | Millimeter-wave communications |
| Keyword(2) | blockage prediction |
| Keyword(3) | people flow data |
| Keyword(4) | pedestrians |
| 1st Author's Name | Hirofumi Nakajo |
| 1st Author's Affiliation | The University of Electro-Communications(UEC) |
| 2nd Author's Name | Takeo Fujii |
| 2nd Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2022-07-15 |
| Paper # | SR2022-42 |
| Volume (vol) | vol.122 |
| Number (no) | SR-107 |
| Page | pp.pp.96-103(SR), |
| #Pages | 8 |
| Date of Issue | 2022-07-06 (SR) |