Research Article
Study of Activity Tracking through Bluetooth Low Energy-Based Network
Table 1
Path loss exponents
for different environments.
| Environment | Path loss exponent |
| Free space | 2 | In building (line-of-sight) | 1.6-1.8 | In building (obstructed) | 2.7-4.3 | Outdoor urban areas | 2.7-3.5 | Outdoor shadowed urban areas | 3-5 |
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