| Presentation | 2017-07-14 Propagation Characteristics of 920Hz Radio Signal using Low Height Hirofumi Ogura, Kai Cai, Tomohito Takubo, Shinsuke Hara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The wireless signal in the 920MHz frequency band, as compared to the one in the 2.4GHz frequency band, has an advantage of longer transmittable range, on the other hand, a disadvantage of larger antenna form factor. When applying the 920MHz wireless signal to data collection from a vital sensor node put to the waist position of a man, its low antenna height affects the propagation characteristic. Furthermore, the girth of abdomen is different between adults and children, so it also affects the propagation characteristic. In this paper, we investigate the propagation characteristics of the 920Hz wireless signal using low antenna height. We conduct experiments using adult and child human phantoms, measure the distance attenuation, the antenna directivityand the attenuation by obstacle, and then characterize them with mathematical models. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 920MHz wireless signal / multi-hop sensor networks / low antenna height / propagation characteristics |
| Paper # | WBS2017-20,MICT2017-22 |
| Date of Issue | 2017-07-06 (WBS, MICT) |
| Conference Information | |
| Committee | WBS / MICT |
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| Conference Date | 2017/7/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | ACT CITY |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Poster Session, Wideband System, Healthcare and Medical Information Communication Technologies, etc. |
| Chair | Fumiaki Maehara(Waseda Univ.) / Masaru Sugimachi(National Cerebral and Cardiovascular Center) |
| Vice Chair | Masanori Hamamura(Kochi Univ. of Tech.) / Fumie Ono(NICT) / Shinsuke Hara(Osaka City Univ.) / Takahiro Aoyagi(Tokyo Inst. of Tech.) |
| Secretary | Masanori Hamamura(Mitsubishi Electric) / Fumie Ono(Ibaraki Univ.) / Shinsuke Hara(Niigata Univ.) / Takahiro Aoyagi(Saga Univ.) |
| Assistant | Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) / Takumi Kobayashi(Yokohama National Univ.) / Shintaro Izumi(Kobe Univ.) / Tomoko Tateyama(Hiroshima Inst. of Tech.) / Ami Tanaka(Ritsumeikan Univ.) / Daisuke Anzai(Nagoya Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Wideband System / Technical Committee on Healthcare and Medical Information Communication Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Propagation Characteristics of 920Hz Radio Signal using Low Height |
| Sub Title (in English) | |
| Keyword(1) | 920MHz wireless signal |
| Keyword(2) | multi-hop sensor networks |
| Keyword(3) | low antenna height |
| Keyword(4) | propagation characteristics |
| 1st Author's Name | Hirofumi Ogura |
| 1st Author's Affiliation | Osaka City University(Osaka City Univ.) |
| 2nd Author's Name | Kai Cai |
| 2nd Author's Affiliation | Osaka City University(Osaka City Univ.) |
| 3rd Author's Name | Tomohito Takubo |
| 3rd Author's Affiliation | Osaka City University(Osaka City Univ.) |
| 4th Author's Name | Shinsuke Hara |
| 4th Author's Affiliation | Osaka City University(Osaka City Univ.) |
| Date | 2017-07-14 |
| Paper # | WBS2017-20,MICT2017-22 |
| Volume (vol) | vol.117 |
| Number (no) | WBS-122,MICT-123 |
| Page | pp.pp.69-73(WBS), pp.69-73(MICT), |
| #Pages | 5 |
| Date of Issue | 2017-07-06 (WBS, MICT) |