An intelligent wireless access system for a vehicle comprises a non-transitory computer-readable storage medium having stored thereon a computer program for tracking a target and estimating distance, a position, or direction of the target to a vehicle. The computer program comprises a routine of set instructions for causing the machine to perform receiving a beacon packet from the target, determining signal strength information for the beacon packet, transmitting a message comprising the signal strength information and the beacon packet for the target, and estimating based on received message, at least one of distance, position, or direction of the target to the vehicle.