Demand map-based data dissemination scheme for location dependent data in VANETs

In this paper, we described the design of Demand map-based data distribution scheme and preliminary simulation results. The soft-state sketch is used for the data structure of elements of Dmap information to make the size of Dmap on memory small and the system scalable. We are working on developing detailed design of the Dmap and Dmap-based data dissemination.