Localization concerns the problem of determining the physical location of a person or device. GPS is a commonly used localization method. However, this method does not work indoors due to the lack of a clear path between the GPS receiver and satellites. Wi-Fi positioning systems are commonly used to perform localization indoors. They involve measuring the position of a Wi-Fi receiver relative to a set of wireless access points (https://en.wikipedia.org/wiki/Wi-Fi_positioning_system). The aim of this project is to implement and evaluate a Wi-Fi positioning system.