GOT: Grid-Based On-Road Localization Through Inter-Vehicle Collaboration
GPS navigators have been widely adopted by drivers. However, due to the sensibility of GPS signals to terrain, vehicles cannot get their locations when they are inside a tunnel or on a road surrounded by high-rises where the satellite signal is blocked. This incurs the safety and convenience problems. To address this issue, the authors propose a novel Grid-based On-road localizaTion system (GOT), where vehicles, with or without accurate GPS signals, self-organize into a Vehicular Ad-hoc NETwork (VANET), exchange location and distance information and help each other to calculate an accurate position for all the vehicles inside the network. GOT evaluates the geometric relationship among vehicles.