Whenever a new wifi router/network is set up in a place I’ve lived, the wifi only works within the immediate confines of the house or apartment. Wifi works through some walls, but how do localized wifi networks (for businesses and stuff too) know where exactly to stop connecting?
In: Technology
Usable signal will primarily depend on the power output of the access point (minus any interference, of course). For a business that may have many access points to cover a building, you essentially have a map of a floorplan and import it into a program. That program can tell you how many access points you need for various qualities of coverage, where to put them, and what power settings to use.
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