Line-of-sight + first-order NLoS reflection under 4-panel ceiling LEDs, with human blocker shadows on the floor.
| Room W × D × H | 10 × 8 × 3 m |
| Ceiling / LED height | 3.0 m |
| UE height (on floor) | 0.05 m |
| PD area APD | 1 × 10⁻⁴ m² |
| Wall reflectivity ρ | 0.65 |
| Blocker r × h | 0.35 × 1.75 m |
| LEDs on ceiling | 2×2 · 4 |
| LED half-angle Φ½ | 60° |
| Lambertian order m | 1.00 |
| Walking blockers | 3 |