A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks
Localization is one of the essential problems in the Internet of Things (IoT). Dynamic changes in the radio environment may lead to poor localization accuracy or discontinuous localization in non-line-of-sight (NLOS) scenarios. To address this problem, this paper proposes a localization enhancement...
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MDPI AG
2025-07-01
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| author | Yuhong Huang Youping Zhao |
| author_facet | Yuhong Huang Youping Zhao |
| author_sort | Yuhong Huang |
| collection | DOAJ |
| description | Localization is one of the essential problems in the Internet of Things (IoT). Dynamic changes in the radio environment may lead to poor localization accuracy or discontinuous localization in non-line-of-sight (NLOS) scenarios. To address this problem, this paper proposes a localization enhancement method based on direct-path identification and tracking. More specifically, the proposed method significantly reduces the range error and localization error by quickly identifying the line-of-sight (LOS) to NLOS transition and effectively tracking the direct path. In a large testing hall, localization experiments based on the ultra-wideband (UWB) signal have been carried out. Experimental results show that the proposed method achieves a root mean square localization error of less than 0.3 m along the user equipment (UE) movement trajectory with serious NLOS propagation conditions. Compared with conventional methods, the proposed method significantly improves localization accuracy while ensuring continuous localization. |
| format | Article |
| id | doaj-art-d5dd59f23b8e40ba97d2f3abc0423b47 |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-d5dd59f23b8e40ba97d2f3abc0423b472025-08-20T03:36:30ZengMDPI AGSensors1424-82202025-07-012515453810.3390/s25154538A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future NetworksYuhong Huang0Youping Zhao1School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaLocalization is one of the essential problems in the Internet of Things (IoT). Dynamic changes in the radio environment may lead to poor localization accuracy or discontinuous localization in non-line-of-sight (NLOS) scenarios. To address this problem, this paper proposes a localization enhancement method based on direct-path identification and tracking. More specifically, the proposed method significantly reduces the range error and localization error by quickly identifying the line-of-sight (LOS) to NLOS transition and effectively tracking the direct path. In a large testing hall, localization experiments based on the ultra-wideband (UWB) signal have been carried out. Experimental results show that the proposed method achieves a root mean square localization error of less than 0.3 m along the user equipment (UE) movement trajectory with serious NLOS propagation conditions. Compared with conventional methods, the proposed method significantly improves localization accuracy while ensuring continuous localization.https://www.mdpi.com/1424-8220/25/15/4538direct pathlocalizationlocation trackingnon-line-of-sight (NLOS)range errorultra-wideband (UWB) |
| spellingShingle | Yuhong Huang Youping Zhao A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks Sensors direct path localization location tracking non-line-of-sight (NLOS) range error ultra-wideband (UWB) |
| title | A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks |
| title_full | A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks |
| title_fullStr | A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks |
| title_full_unstemmed | A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks |
| title_short | A Localization Enhancement Method Based on Direct-Path Identification and Tracking for Future Networks |
| title_sort | localization enhancement method based on direct path identification and tracking for future networks |
| topic | direct path localization location tracking non-line-of-sight (NLOS) range error ultra-wideband (UWB) |
| url | https://www.mdpi.com/1424-8220/25/15/4538 |
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