Performance Evaluation of Delayed ACK Method for Message Suppression in VANETs

Vehicular Ad hoc Networks (VANETs) are an important component of the advanced information networking for inter-operable communications with a wide range of networks. In our previous work, we proposed a method of Enhanced Message Suppression Controller (EMSC) considering delayed ack for vehicular Delay/Disruption Tolerant Networking (DTN). In this paper, we evaluate the performance of our proposed method for message suppression in VANETs using delay, number of sent bundles and MS-ACK metrics. We consider 802.11p standard and send bundle messages in a Manhattan grid scenario for different number of vehicles. From the simulation results, we observed that our proposed delayed ack method embedded in EMSC can increase the efficiency with less reply of MS-ACKs.