VANET Coverage Analysis for GPS Augmentation Data in Rural Area

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Enhanced position accuracy is key for modern navigation systems, location based\udservices and applications based on Inter-Vehicle Communication (IVC). Position data are\udthe foundation for deriving vehicle trajectories used for assessing a situation's criticality in\udvehicle safety. Thus, especially Advanced Driver Assistance Systems (ADASs) and integral\udsafety applications bene t from nearby vehicles spreading their positions periodically with high\udaccuracy. Positioning based on Global Navigation Satellite System (GNSS) measurements can\udbe enhanced by established Cooperative Positioning (CP) methods like Real-Time Kinematic\ud(RTK) and Di fferential GNSS (DGNSS). Conventional CP relies on positioning correction\uddata from a third party, whereas this paper introduces a self-su fficient CP system based on\udPrecise Point Positioning (PPP) and Vehicular Ad-Hoc Network (VANET) technology requiring\udno infrastructure. Furthermore, the data dissemination process and achievable coverage are\udanalysed by a simulation study for a rural area in Bavaria, Germany. For this purpose, the\udsimulation employs the European IVC protocol stack ITS-G5. While the general feasibility of\udthis CP approach could be assured, some remaining issues regarding employed network protocols\udwere discovered as well