Scalability Impact on VANET Routing Protocols Performance

Vehicular Ad-hoc Networks (VANETs) represent a rapidly emerging, particularly challenging class of Mobile Ad Hoc Networks (MANETs). VANET often suffer from security attacks because of its features like open medium, changing its topology dynamically, lack of central monitoring and management, cooperative algorithms and no clear defense mechanism. In this research, we investigated the impact of Black Hole attack on network performance towards VANET environment in terms of throughput, packet loss ratio, packet delivery ratio and normalized routing load. Besides that, we also analyzed which routing protocol is more vulnerable to the Black Hole attack in VANET. We simulated Black Hole. The results shows that Black Hole attack gave negative impact towards network performance in VANET. We also determined that AODV is the most vulnerable routing protocol to Black Hole attack in VANET compared to OLSR routing protocol.