|By changing the apparent distance of multiple APs, we provide an environment that emulates moving through a series of AP coverage areas. We can set the rate of change to emulate the speed of the station's movement. We can set the emulated distance for APs so it appears that the APs are further apart or closer together.
This cookbook scenario illustrates a minimal motion emulation setup: two Candela CT520 systems are providing a 1x1 AP signal to a CT703 Programmable Attenuator. A cell phone is sitting near the attenuator. (Illustration at right.)
There are many possible testing scenarios. One ideal method would be to place each AP and phone into isolation chambers, and wire a programmable attenuator to each AP, placing the antennas in the phone's isolation chamber. (Illustration below.)
It is possible to use third-party access points, but then the LANforge would not be able to report as many statistics, and would be used mostly for just operating the programmable attenuator(s). Third-party APs may be able to provide their own reporting to make this scenario more useful.