Key focus of RSU deployment for vehicular ad-hoc networks is typically on minimization of deployment cost while still ensuring maximized enhancement of network performance. A hotspot-based RSU deployment scheme is firstly proposed in this study. Multiple RSU is placed along road to form a backbone link and these links are placed between hotspot regions to connect these ?isolated island? for maximized enhancement of network connectivity. A RSU based data dissemination scheme is also proposed in this study. Vehicles use the probability flooding method to diffusion RSU location and vehicles outside the wireless transmission range of RSU also can use RSU to forward the packets. The simulation results show that our scheme can achieve more significant and better performance compare to the existing RSU deployment and data dissemination scheme.
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