Environment | Path loss exponent, n |
Free space | 2 |
Urban area cellular radio | 2.7 to 3.5 |
Shadowed urban cellular radio | 3 to 5 |
In building line-of-sight | 1.6 to 1.8 |
Obstructed in building | 4 to 6 |
Obstructed in factories | 2 to 3 |