| Presentation | 2007-07-20 Low Complexity TOA Localization Algorithm for NLOS Environments Takahiro FUJITA, Tomoaki OHTSUKI, Toshinobu KANEKO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The location estimation in sensor networks is of great current interest. A general approach to location estimation is to gather Time-of-Arrival (TOA) measurements from a number of nodes and to estimate a target location. The two major sources of range measurement errors in geolocation techniques are measurement error and Non-Line-of-Sight (NLOS) error. NLOS errors caused by blocking of direct paths have been considered as a serious issue in the location estimation. Therefore, Iterative Minimum Residual (IMR) method, which identifies NLOS nodes and removes them from the data set used for localization, has been proposed. IMR improves location estimation precision in comparison with the technique that does not identify and remove NLOS nodes. However, IMR needs a lot of calculation to identify NLOS nodes. In this report, we propose a new location estimation method with low complexity NLOS node identification. We show that the proposed method achieves almost the same root mean square error (RMSE) as the conventional method with lower complexity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless Sensor Networks / Time-of-Arrival (TOA) / Non-Line-of-Sight (NLOS) / Localization |
| Paper # | USN2007-34 |
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| Conference Information | |
| Committee | USN |
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| Conference Date | 2007/7/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Ubiquitous and Sensor Networks(USN) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low Complexity TOA Localization Algorithm for NLOS Environments |
| Sub Title (in English) | |
| Keyword(1) | Wireless Sensor Networks |
| Keyword(2) | Time-of-Arrival (TOA) |
| Keyword(3) | Non-Line-of-Sight (NLOS) |
| Keyword(4) | Localization |
| 1st Author's Name | Takahiro FUJITA |
| 1st Author's Affiliation | Graduate School of Science and Technology, Tokyo University of Science() |
| 2nd Author's Name | Tomoaki OHTSUKI |
| 2nd Author's Affiliation | Faculty School of Science and Technology, Keio University |
| 3rd Author's Name | Toshinobu KANEKO |
| 3rd Author's Affiliation | Graduate School of Science and Technology, Tokyo University of Science |
| Date | 2007-07-20 |
| Paper # | USN2007-34 |
| Volume (vol) | vol.107 |
| Number (no) | 152 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |