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Unmanned Aerial Vehicles (UAVs) routing methods have been studied using protocols for ad hoc networks composed of smart meter wireless devices. By using weighting, both safety and time could be judged comprehensively, and a "safe and shortest time route" could be constructed. The requirement of route construction corresponds to the service. We proposed a method in which multiple different routes can be listed as candidates, for the key requirement to deliver the object to the destination within the time limit by each service. The total number of messages received by the destination node could explode. Therefore, we propose a Route Request (RREQ) message discard method to suppress unnecessary RREQ messages. Simulation evaluation experiments were conducted using real maps. We were able to increase the number of RREQ messages that were safely routed. This confirmed the effectiveness of the proposed method.

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Currently, NDN-based VANETs protocols have several problems with packet overhead of rebroadcasting, control packet, and the accuracy of next-hop selection due to the dynamic topology. To deal with these problems in this paper, we propose a robust and lightweight forwarding protocol in Vehicular ad-hoc Named Data Networking. The concept of our forwarding protocol is adopting a packet-free approach. A vehicle collects its neighbor's visual identification by a pair of cameras (front and rear) to assign a unique visual ID for each node. Based on these IDs, we construct a hop-by-hop FIB-based forwarding strategy effectively. Furthermore, the Face duplication [1] in the wireless environment causes an allbroadcast problem. We add the visual information to Face to distinguish the incoming and outgoing Face to prevent broadcast-storm and make FIB and PIT work more accurate and efficiently. The performance evaluation results focusing on the communication overhead show that our proposal has better results in overall network traffic costs and Interest satisfaction ratio than previous works.