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