I looked for further info regarding the AP height - and I don't think it's a verbose that VisualRF or AirWave using in indoor deployment so much,Please read the following info:
AirWave Increasing Location Accuracy
The Location Service will utilize all RF information available to increase location accuracy of
clients, tags, and rogue devices. Understanding your infrastructure‟s inherit capabilities is key to
understand how much extra effort is required to ensuring location accuracy.
There are three key elements read from controllers or access points that increase location
accuracy: signal strength of a client as heard by the AP of association, signal strength of a client
as heard by APs other than the AP of association, and signal strength that an AP hears other
APs
AMP provides four main methods to increase accuracy once your access points are deployed.
Location Probability Regions – Probability regions will increase or decrease the chances of a
device being located within the region.
Adding Exterior Walls – increases location accuracy by reducing the statistical probability of
placements outside the office confines
Client Training for Stationary Devices – ensure non-mobile clients like desktops or scales will
always remain in a defined static location. Statically assigning non-mobile devices reduces the
CPU load on your server, because the VisualRF service does not evaluate any signal metrics for
this MAC address when associated with an AP on the floor plan.
Remote Client Surveys – provides additional attenuation inputs for corners and low-coverage
areas without the burden of actually carrying a laptop to the physical location.
Please let me know if it clarify your question.
Me