Research Article
A Model with Leaf Area Index and Trunk Diameter for LoRaWAN Radio Propagation in Eastern China Mixed Forest
Table 3
Path loss measurement result (dB) in the spring stage with transmitting height 0.5 m.
| Radial no. | Degree | 5 m | 10 m | 20 m | 30 m | 40 m | 50 m | 60 m | 70 m | 80 m | 90 m | 100 m |
| 1 | 0 | 54.5 | 60.1 | 78.6 | 81.9 | 84.2 | 90.5 | 89.8 | 101.3 | 105.4 | 110.7 | 115.0 | 2 | 30 | 52.2 | 64.3 | 82.1 | 85.2 | 81.7 | 93.2 | 97.3 | 97.1 | 110.5 | 112.2 | 118.3 | 3 | 60 | 55.1 | 66.9 | 75.3 | 79.7 | 86.9 | 94.1 | 98.8 | 95.6 | 112.4 | 123.8 | 109.9 | 4 | 90 | 56.9 | 68.2 | 73.7 | 83.8 | 88.2 | 97.7 | 96.9 | 103.4 | 107.6 | 121.1 | 117.1 | 5 | 120 | 49.8 | 69.5 | 79.9 | 89.7 | 78.4 | 86.9 | 85.4 | 106.8 | 103.2 | 126.7 | 114.6 | 6 | 150 | 51.6 | 63.3 | 83.5 | 86.5 | 82.5 | 88.1 | 88.7 | 109.7 | 99.3 | 117.5 | 107.3 | 7 | 180 | 56.9 | 59.2 | 85.4 | 83.4 | 89.6 | 89.4 | 99.4 | 103.5 | 98.8 | 111.2 | 109.7 | 8 | 210 | 59.3 | 65.7 | 89.1 | 90.3 | 92.3 | 92.5 | 98.5 | 101.9 | 104.7 | 107.5 | 119.2 | 9 | 240 | 53.6 | 67.8 | 80.6 | 84.9 | 85.1 | 85.8 | 91.0 | 97.6 | 108.1 | 106.4 | 110.8 | 10 | 270 | 48.8 | 62.6 | 77.2 | 81.1 | 86.8 | 94.3 | 94.7 | 93.4 | 102.6 | 109.3 | 133.5 | 11 | 300 | 55.2 | 70.3 | 79.8 | 88.3 | 88.9 | 93.6 | 93.9 | 108.2 | 104.9 | 104.6 | 128.4 | 12 | 330 | 58.4 | 64.8 | 78.4 | 82.6 | 84.6 | 87.7 | 95.5 | 110.1 | 103.8 | 109.9 | 116.7 |
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