| Presentation | 2021-05-10 Extensions of Indoor Localization System Using IEEE802.15.4 Protocol for Multiple Users Kazushi Hamazaki, Pradini Puspitaningayu, Nobuo Hunabiki, Minoru Kuribayashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For the low-cost, small-size, and long-life system, we have developed the fingerprint-based indoor localization system (FB-ILS) using the IEEE802.15.4 protocol that has been used for low-speed short-range wireless communications. By limiting the detection resolution to one room, this FB-ILS system is intended to achieve the high accuracy. The current FB-ILS can detect only one user location using one transmitter. However, it is necessary to detect the locations of multiple users at the same time. In this study, we extend the FB-ILS to afford multiple transmitters, by 1) extending the room detection program in the system, 2) reducing packet losses due to the contentions among the packets from multiple transmitters at each receiver, and 3) avoiding misdetections due to the signal fluctuations caused by the interferences between multiple radio signals from multiple transmitters. For evaluations, we implemented the extended testbed system, and conducted experiments using up to 10 transmitters at the third floor of #2 Engineering Building in Okayama University. The results confirm the effectives of the extended system |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | indoor localization system / IEEE802.15.4 / multiple users / packet loss / interference |
| Paper # | LOIS2021-3 |
| Date of Issue | 2021-05-03 (LOIS) |
| Conference Information | |
| Committee | LOIS / IPSJ-SPT / IPSJ-GN |
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| Conference Date | 2021/5/10(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toru Kobayashi(Nagasaki Univ.) / 金岡 晃(東邦大) / 斉藤 典明(東京通信大) |
| Vice Chair | Hiroyuki Toda(NTT) |
| Secretary | Hiroyuki Toda(NTT) / (Nagasaki Univ.) / (DataSign) |
| Assistant | Shigeru Fujimura(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Life Intelligence and Office Information Systems / Special Interest Group on Security Psychology and Trust / Special Interest Group on Groupware and Network Services |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Extensions of Indoor Localization System Using IEEE802.15.4 Protocol for Multiple Users |
| Sub Title (in English) | |
| Keyword(1) | indoor localization system |
| Keyword(2) | IEEE802.15.4 |
| Keyword(3) | multiple users |
| Keyword(4) | packet loss |
| Keyword(5) | interference |
| 1st Author's Name | Kazushi Hamazaki |
| 1st Author's Affiliation | Okayama University(Okayama Univ) |
| 2nd Author's Name | Pradini Puspitaningayu |
| 2nd Author's Affiliation | Okayama University(Okayama Univ) |
| 3rd Author's Name | Nobuo Hunabiki |
| 3rd Author's Affiliation | Okayama University(Okayama Univ) |
| 4th Author's Name | Minoru Kuribayashi |
| 4th Author's Affiliation | Okayama University(Okayama Univ) |
| Date | 2021-05-10 |
| Paper # | LOIS2021-3 |
| Volume (vol) | vol.121 |
| Number (no) | LOIS-12 |
| Page | pp.pp.13-18(LOIS), |
| #Pages | 6 |
| Date of Issue | 2021-05-03 (LOIS) |