Catch-up

摘要: In-network data aggregation is a useful technique to reduce redundant and improve communication efficiency. One challenge in how reports can be routed the same node so that merged. Most of existing approaches rely on maintaining routing structure achieve this purpose. However, these are not applicable mobile environment Vehicular Ad hoc Networks (VANETs). In paper, we design cooperative model facilitate adjacent traffic reports. The basic idea behind work adaptively change forwarding delay individual manner report have better chance meet other decision made distributedly by each vehicle based local observations. Actually, our scheme also tradeoff between overhead propagation delay. Simulation results realistic map models demonstrate effectively with acceptable