Providing Databases for Different Indoor Positioning Technologies: Pros and Cons of Magnetic Field and Wi-Fi Based Positioning

Table 11

Pros and cons for magnetic field and Wi-Fi fingerprinting positioning.

	Pros	Cons
Magnetic field	Being fully infrastructure-less	Vector only contains 3 values
	Good accuracy	Requires user movement
	Continuous mapping	High dependence on user’s velocity
	Continuous positioning	High dependence on user’s orientation
	Fast mapping procedure	Large reference database
	Refreshment frequency @ 10 Hz
Wi-Fi fingerprinting	Being partially infrastructure-less	Affected by people presence
	Good accuracy	Affected by user movement
	Average of 17 WAPs per FP	5 GHz band not being in all devices
	“Small” reference database	Refreshment frequency @ 0.2 to 0.3 Hz
	Discrete database	Required feature selection
	Allows precise spatiotemporal analysis	Presence of mobile hotspots
	1-NN valid and fast solution