
Assistance systems, such as GLOSA, collision warning, and Digital St. Andrew's Cross, can increase safety and comfort for road users, but also improve efficiency. For these assistance systems to be available to VRUs (“Vulnerable Road Users“) as well as passenger cars, highly accurate positioning is necessary. It is crucial to assign road users to the correct lane on a road, for example, to determine the correct traffic light sequence or to detect a possible collision.
GPS and other Global Navigation Satellite Systems (GNSS) often have a deviation of 5 meters or more when calculating positions. Since GPS positions on end devices are determined from the signals of satellites, there are various sources of error. Therefore, Fraunhofer FOKUS implemented Location as a Service (LaaS), a service that can improve users' positions as a Mobile Edge Cloud (MEC) service.