Performance Evaluation of Message Suppression Method for DTN Routing Protocols

In previous work, we proposed a Message Suppression (MS) method for Vehicular Delay Tolerant Networking (Vehicular-DTN) considering Epidemic routing protocol. In this paper, we evaluate our proposed MS method considering three different DTN routing protocols under highly stressed environment. In order to evaluate the performance of MS method, we use Direct Delivery, Spray and Wait and Epidemic as DTN routing protocols. The simulations for two scenarios are conducted considering obstacles (buildings), where MS with Road side units (MSRs) are present and not present. We consider 802.11p standard and send bundle messages in a Manhattan grid scenario. We use the packet delivery ratio, end-to-end delay, number of replicated messages and storage usage as evaluation metrics. Based on simulation results, we found that our proposed method with Epidemic routing has better performance compared with other DTN routing protocols.