Table 6.

Comparison of the significant differences among three deployments

Group	Sensor	First deployment			Second deployment			Third deployment
		$\mathrm{\Delta }P$	$\mathrm{\Delta }P$(95%CI)	$P$	$\mathrm{\Delta }P$	$\mathrm{\Delta }P$(95%CI)	$P$	$\mathrm{\Delta }P$	$\mathrm{\Delta }P$(95%CI)	$P$
		(dBm)	(dBm), (dBm)		(dBm)	(dBm), (dBm)		(dBm)	(dBm), (dBm)
1	Sensor 1	8.63	8.44, 8.81	0.00	0.36	$-$0.33, 1.05	0.30	8.63	8.44, 8.81	0.00
	Sensor 4
2	Sensor 2	0.54	$-$0.08, $-$1.16	0.09	5.65	5.39, 5.91	0.00	5.65	5.39, 5.91	0.00
	Sensor 3