Impact of Scalability on BSM PDR Messages in VANETs

Vehicular Ad-hoc Networks (VANET) has been considered as the prospective techniques for improving safety and providing other services to drivers and passengers. It has evolved as a critical component of the smart transport system. Several efforts have been made in this direction, but security in VANET has received little attention. Security is a crucial concern for VANET routing since various applications influence life-or-death decisions and unauthorized interference can impose critical disasters. When compared to other communication networks, the characteristics of VANETs exacerbate the difficulty faced in the secure routing problem. Another issue related to routing is effective data dissemination and data sharing in VANETs. More areas for advancement include the incorporation of privacy and security measures into routing protocols, as well as the establishment of priority routes for emergency and safety communications. 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. The designed VANET model is analyzed in this technical work across low and high scalable networks (based on number of nodes) and its impact on Basic Safety Messages (BSM) Packet Delivery Ratio (PDR) on a designed VANET scenario. The experiment is performed over four VANET routing protocols. The results are shown in graphical and tabular form, one of the best routing protocol is selected after the result analysis. Destination Sequenced Distance Vector (DSDV) is chosen as the best routing protocol in low and high scalable scenarios.