Indoor Localisation Using a Context-Aware Dynamic Position Tracking Model

Table 2

Comparison with assisted GPS—power and accuracy.

Method	Accuracy—position error (m)	Latency (s)	Power (mW)	TX power (mW)	RX sensitivity (dBm)	Indoor range
Assisted GPS^1	57 m	30	300	—	−155 dBm	Global
GSM^2	20 m	—	1162	3.16	−14 dBm	200 m
Wireless LAN^3	3 m to 30 m	11 s	858	31.62	−74 dBm	100 m
Bluetooth^4	3 m to 4 m	20 s	231	2.51	−88 dBm	30 m
Context-aware tracking algorithm	1.21 m (Table 1)	2 s	97.2	0 dBm	−92 dBm	30 m

References: 1[11], 2[12], 3[4, 13], 4[4, 14].