In a vehicular ad hoc network (VANET). vehicles always move in high-speed which may cause the network topology changes frequently. This is challenging for routing protocols of VANET. Greedy Perimeter Stateless Routing (GPSR) is a representative routing protocol of VANET. https://www.spidertattooz.com/CND-Shellac-Be-Demure-0-5oz-p13568/