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Many Internet of things (IoT) applications have been developed andimplemented on unreliable wireless networks like the Delay tolerant network(DTN), however, efficient data transfer in DTN is still an important issue forthe IoT applications. One of the application areas of DTN is Vehicular DelayTolerant Network (VDTN) where the network faces communication disruption due tolack of end-to-end relay route. It is challenging as some of the nodes showselfish behavior to preserve their resources like memory, and energy level andbecome non-cooperative. In this article, an Honesty based Democratic Scheme(HBDS) is introduced where vehicles with higher honesty level are elected asheads -- during the process. Vehicles involved in the process would maximizetheir rewards (reputation) through active participation in the networkactivities whereas nodes with non-cooperative selfish behavior are punished.The honesty level of the heads is analyzed using Vickrey, Clarke, and Groves(VCG) model. The mathematical model and algorithms developed in the proposedHBDS technique are simulated using the VDTNSim framework to evaluate theirefficiency. The performance results show that the proposed scheme dominatescurrent schemes in terms of packet delivery probability, packet delivery delay,number of packets drop, and overhead ratio.

Honesty Based Democratic Scheme to Improve Community Cooperation for IoT Based Vehicular Delay Tolerant Networks