A Fusion Approach of RSSI and LQI for Indoor Localization System Using Adaptive Smoothers

Table 2

Error reduction comparison of RSSI filter, fusion filter, proposed LQI filter, and BOTH filter.

Path	Filter name	Av. error	Max. error	RSSI filter		LQI filter		Fusion filter		BOTH filter
1	Nonfilter	1.2750	4.0577
	RSSI filter	1.0911	3.1117
	LQI filter	1.0962	2.7127
	Fusion filter	1.2807	3.0742
	BOTH filter	1.0959	2.6453
2	Non filter	3.0142	15.183	Av. RDC. of Av. Error 33%	Av. RDC. of Max. Error 50%	Av. RDC. of Av. Error 41%	Av. RDC. of Max. Error 49%	Av. RDC. of Av. Error 49%	Av. RDC. of Max. Error 62%	Av. RDC. of Av. Error 56%	Av. RDC. of Max. Error 68%
	RSSI filter	1.0943	5.4847
	LQI filter	1.0040	3.4574
	Fusion filter	0.8408	3.3281
	BOTH filter	0.6495	1.8214
3	Non filter	5.3016	21.183
	RSSI filter	2.3972	7.2861
	LQI filter	3.0213	13.609
	Fusion filter	1.3088	3.1259
	BOTH filter	1.3174	3.8351