Localize Vehicles Using Wireless Traffic Sensors

Recently, wireless traffic sensors present themselves as a low cost and non-intrusive alternative to wired traffic sensors. We propose a vehicle localization method that utilizes the signals of the wireless sensors. A vehicle is equipped with a receiver and overhears the geo-tagged packets transmitted by wireless traffic sensors. An onboard computer then computes the distribution of possible vehicle locations using an algorithm based on the principles of particle filtering. In our simulation, the proposed method outperforms the proximity centroid method by an average of 79%.