Comparative Analysis of Low and High Scalable VANET in Terms of Receive Rate, Packets Received, MAC/PHY Overhead and Average Goodput

The modern advancements in mobile and wireless communications have made an tremendous change in human lifestyles. Mobile Ad-hoc Networks (MANETs) are self-organized and self-configured networks consisting of moving nodes that communicate through wireless communication systems. Vehicular Ad-hoc Network (VANET) is a special category of MANETs with some distinctive set of characteristics. Some common features of VANET are its use of multi-hop communications between mobile vehicles with limited bandwidth and self-organization of the moving vehicles. Also, VANET is differed from MANET by the feature of high mobility of nodes. One significant advantage of VANET over MANET is that the computing devices get continuous power from its vehicles. Scalability refers to a VANET's ability to accept a rising number of communicating vehicles without experiencing disruption or loss in data transfer or traffic loading, which increases administrative complexity and reduces network performance. Because of its difficult properties, designing a scalable and robust network is an open topic of research in VANET. When VANETs go from sparse to dense mode, or from high mobility to slow traffic conditions, several design methods fall short. The performance metrics Average Goodput, MAC/PHY overhead, packet received, and receive rate over four VANET routing protocols- Ad-hoc On Demand Vector (AODV), Destination Sequenced Distance Vector (DSDV), Dynamic Source Routing (DSR), and Optimized Link State Routing (OLSR) in a defined area. The results showed that DSR performed well in average goodput,MAC/PHY overhead, receive rate, and packets received in low and highly scalable scenarios.