A wireless engineer needs to implement client tracking. Which method does the angle of arrival use to determine the location of a wireless device?

Received signal strength (RSSI) is used in proximity-based and fingerprinting location methods, not in AoA, which relies on phase-difference calculations across antenna elements rather than signal power measurements.

Triangulation describes a higher-level positioning method that combines multiple bearing or distance measurements, but it is not the underlying physical mechanism used by AoA to derive the direction of the incoming signal.

Time Distance of Arrival (TDoA) is a distinct location technique that computes position from the time differences of signal arrival at multiple sensors, not from the angle at which the signal arrives at an antenna array.

AoA technology uses an array of antenna elements and computes the phase difference of the incoming signal across those elements to derive the angle of incidence - the precise angle at which the radio wave strikes the array - allowing the system to calculate the direction of the transmitting device and resolve its physical location.