Deploying APs for location tracking requires
additional consideration above the standard AP deployment guidelines for coverage and capacity.
The following are best practices for AP deployment:
Minimum Received RSS. No fewer than three APs
should be detecting and reporting the RSS of any client station. Only RSS readings stronger
than -75 dBm are used by the Location Engine.
Use the same AP model for the entire floor
plan.
Design your floor plan with the APs installed at the corners of the
floor plan, along the perimeter of the location area. (An area is considered a closed polygon.)
Do not cluster APs in the center of the location area. The following illustration shows a
recommended AP placement.
Recommended AP Placement
The maximum distance between APs depends on
environmental factors such as the presence of walls and structures, but as rule of thumb, in a
location-aware deployment, place the APs 10 to 20 meters apart.
Install APs at the same height on the wall, and do not install APs
behind walls or ceilings.
Install APs away from metal structures like poles or racks, because
metal can affect the radiated pattern.
