Crowdsource Based Indoor Localization by Uncalibrated Heterogeneous Wi-Fi Devices

Table 6

Average distance error with a reduced number of APs.

APs	34 sites	17 sites	8 sites
15	2.58	2.5	2.61
20	2.5	2.01	1.45
25	2.31	1.98	1.6
All	2.77	3.01	3.08