Enhanced RSSI-Based Real-Time Position-Tracking System in Vehicular Networks

The next-generation vehicular tracking applications on the road bring many benefits, including aided travel time estimation, traffic trajectory observation, and quick congestion control. To meet such requirements, adopting the device-free positioning system with wireless received signal strength indicator (RSSI) samples is a cheap, reliable, simple, and robust solution because RSSI indicates the current condition of the signal by geographically overlaying across a region. Considering the usefulness of RSSI, this letter has investigated an enhanced vehicle-tracking scheme incorporating the environmental issues in the driving motions, where the moving vehicle on the road can be tracked by at most two successive base stations (BSs). In addition, due to the use of the minimum number of BSs, the associated data analysis platform with the vehicular network can quickly provide current information about the position of each vehicle.