Table 2.
The maximum distance, minimum distance, average distance and mean square error of one sensor node in VFA-SF and VFA-SF-OPT for different time steps.
| Algorithm | Time Steps | Max. Dist. | Min. Dist. | Ave. Dist. | Mean Error |
|---|---|---|---|---|---|
| VFA-SF | 0–5000 | 10.6086 | 5.0186 | 7.0081 | 1.1784 |
| VFA-SF | 0–800 | 8.6336 | 2.9020 | 5.4846 | 1.1939 |
| VFA-SF | 800–1600 | 1.6464 | 0.1735 | 0.4947 | 0.1707 |
| VFA-SF | 1600–2400 | 0.9941 | 0.1747 | 0.4104 | 0.1373 |
| VFA-SF | 2400–3200 | 1.0669 | 0.1637 | 0.4703 | 0.1370 |
| VFA-SF | 3200–4000 | 1.0382 | 0.1418 | 0.5533 | 0.1818 |
| VFA-SF-OPT | 0–4200 | 5.4899 | 1.4948 | 2.6038 | 0.5719 |
| VFA-SF + VFA-SF-OPT | 800 + 4200 | 11.7351 | 5.0064 | 8.0883 | 1.3212 |
| VFA-SF-OPT | 0–5000 | 5.5319 | 1.5424 | 2.6454 | 0.5740 |
| VFA-SF + VFA-SF-OPT | 800 + 5000 | 11.7858 | 5.0172 | 8.1300 | 1.3226 |