| Presentation | 2014/3/3 Study on Model of Radio Wave Shadowing by a Human Body at High Frequency Bands : Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network Ngochao Tran, Tetsuro IMAI, Yukihiko OKUMURA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Facing rapid increase in data traffic of mobile communication network, the hierarchical network configuration based on the phantom cell concept, in which small cells with high bit rate communications overlay macro cell with securing coverage and mobility has been proposed. At here, UHF bands have been used for macro cell and higher frequency bands (SHF bands, EHF bands) have been used for small cells. Considering that the environment of introducing small cells are dense-users-environments with mainly line of sight (LOS) communications and very high data traffic, the shadowing characteristics by human body are important parameters of propagation characteristics. In this paper, we propose the model of shadowing characteristics by human body included shadowing width and median value of shadowing loss. From predicted results using theory of knife edge diffraction and calculated results using uniform geometrical theory of diffraction (UTD), we also show that the shadowing width and median value of shadowing loss can be expressed by simple formulas included frequency, transmission distance between transmission point and the human body, receive distance between receive point and the human body, the human body width, antenna height, and direction of the human body. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Small cells / very high frequency bands / Model of Shadowing by Human body / UTD method / predicted formula |
| Paper # | A・P2013-198 |
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| Conference Information | |
| Committee | AP |
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| Conference Date | 2014/3/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Antennas and Propagation (A・P) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Model of Radio Wave Shadowing by a Human Body at High Frequency Bands : Radio Wave Propagation Technology for Future Radio Access and Mobile Optical Network |
| Sub Title (in English) | |
| Keyword(1) | Small cells |
| Keyword(2) | very high frequency bands |
| Keyword(3) | Model of Shadowing by Human body |
| Keyword(4) | UTD method |
| Keyword(5) | predicted formula |
| 1st Author's Name | Ngochao Tran |
| 1st Author's Affiliation | NTT DOCOMO, INC.() |
| 2nd Author's Name | Tetsuro IMAI |
| 2nd Author's Affiliation | NTT DOCOMO, INC. |
| 3rd Author's Name | Yukihiko OKUMURA |
| 3rd Author's Affiliation | NTT DOCOMO, INC. |
| Date | 2014/3/3 |
| Paper # | A・P2013-198 |
| Volume (vol) | vol.113 |
| Number (no) | 487 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |