Empirical Coefficient Values For Indoor Propagation
Empirical measurements of coefficients and in dB have shown the following values for a number of indoor wave propagation cases.
| Building Type | Frequency of Transmission | ||
|---|---|---|---|
| Vacuum, infinite space | 2.0 | 0 | |
| Retail store | 914 MHz | 2.2 | 8.7 |
| Grocery store | 914 MHz | 1.8 | 5.2 |
| Office with hard partition | 1.5 GHz | 3.0 | 7 |
| Office with soft partition | 900 MHz | 2.4 | 9.6 |
| Office with soft partition | 1.9 GHz | 2.6 | 14.1 |
| Textile or chemical | 1.3 GHz | 2.0 | 3.0 |
| Textile or chemical | 4 GHz | 2.1 | 7.0, 9.7 |
| Metalworking | 1.3 GHz | 1.6 | 5.8 |
| Metalworking | 1.3 GHz | 3.3 | 6.8 |
Read more about this topic: Log-distance Path Loss Model
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