| Parameters | Symbol | Default Values |
|---|---|---|
| The number of beacon nodes | N | 7 |
| The standard deviation of measurement noise | σi | 1 |
| The NLOS errors | U (a, b) | U(0,10) |
| The number of measurements | Ms | 500 |
| The significance level | α | 0.05 |
| The number of particles in PSO | L | 20 |
| The number of cells | r | 7 |