Research Article
A Fusion Approach of RSSI and LQI for Indoor Localization System Using Adaptive Smoothers
Table 2
Error reduction comparison of RSSI filter, fusion filter, proposed LQI filter, and BOTH filter.
| Path | Filter name | Av. error | Max. error | RSSI filter | LQI filter | Fusion filter | BOTH filter |
| 1 | Nonfilter | 1.2750 | 4.0577 | | | | | | | | | RSSI filter | 1.0911 | 3.1117 | | | | | | | | | LQI filter | 1.0962 | 2.7127 | | | | | | | | | Fusion filter | 1.2807 | 3.0742 | | | | | | | | | BOTH filter | 1.0959 | 2.6453 | | | | | | | | | 2 |
Non filter |
3.0142 |
15.183 | Av. RDC. of Av. Error 33% | Av. RDC. of Max. Error 50% | Av. RDC. of Av. Error 41% | Av. RDC. of Max. Error 49% | Av. RDC. of Av. Error 49% | Av. RDC. of Max. Error 62% | Av. RDC. of Av. Error 56% | Av. RDC. of Max. Error 68% | RSSI filter | 1.0943 | 5.4847 | LQI filter | 1.0040 | 3.4574 | Fusion filter | 0.8408 | 3.3281 | BOTH filter | 0.6495 | 1.8214 | 3 |
Non filter |
5.3016 |
21.183 | | | | | | | | | RSSI filter | 2.3972 | 7.2861 | | | | | | | | | LQI filter | 3.0213 | 13.609 | | | | | | | | | Fusion filter | 1.3088 | 3.1259 | | | | | | | | | BOTH filter | 1.3174 | 3.8351 | | | | | | | | |
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