Is it possible to triangulate the location of a Wi-Fi access point with the following data?

Question

Say I have 3 or more peers connected to the same WiFi access point.

If they all give me: - latitude - longitude - their signal level (dBm) in relation to the same WiFi

Is there enough data to get the approximate location of the access point?

Answer 1

Yes, sort of. You will need a way to convert the signal level to a distance from the access point. To do this, you may need to know the signal power (W, mW, etc.). There is an interesting read from Cisco here , but being indoors can cause big errors because physical objects (like walls) between two antennas lose power in the signal.

There are several calculators that may be useful in Radiolabs .

Answer 2

Not in all possible situations. Each user will provide you with a circle of potential access points. The radius of the circle will depend on the signal level at a given location.

, , ( ) , . , , , .