On Potentials and Limitations of a Hybrid WLAN-RFID Indoor Positioning Technique

Table 2

Location estimation error for maximum RSSI and average RSSI techniques.

Δ	𝑁𝐴	Algorithm		Average Error (cm)	Error90% (cm)
240 cm	4	WLAN Fingerprinting		504	904
		Hybrid 3 zones	Max	308	554
			Average	264	526
		Hybrid 6 zones	Max	291	516
			Average	212	326
	7	WLAN Fingerprinting		350	732
		Hybrid 3 zones	Max	270	509
			Average	215	366
		Hybrid 6 zones	Max	221	416
			Average	194	311
120 cm	4	WLAN Fingerprinting		441	952
		Hybrid 3 zones	Max	250	461
			Average	213	337
		Hybrid 6 zones	Max	198	380
			Average	168	284
	7	WLAN Fingerprinting		249	455
		Hybrid 3 zones	Max	198	342
			Average	158	270
		Hybrid 6 zones	Max	168	295
			Average	143	260