A Vehicular Ad-Hoc Network or VANET is a form of Mobile Ad-Hoc Network or MANET which provides communication between vehicles and between vehicles and road-side base stations. A vehicle in VANET is considered to be an intelligent mobile node capable of communicating with its neighbors and other vehicles in the network. VANET is different from MANET due to high mobility of nodes and the large scale of networks. Security and privacy are the two main concerns in designing a VANET .Although there are many proposed solutions for improving securities in VANET but security still remains a delicate research subject. The main objective of the system are to propose the algorithm for detection of multiple malicious, invalid and irrelevant requests sent and received from multiple vehicles at a time and to analyze and detect the attacks in the efficient and effective manner for secure environment. In this system we are proposing the MIPDA algorithm for detecting and analyzing the denial-of-service (DOS) attack. And will also apply the proposed algorithm for detection of multiple malicious, invalid and irrelevant requests sent and received from multiple vehicles at a time. To analyze the behavior of proposed method using Avarious performance parameters such as: Packet loss, Life time of network, Total energy consumed, Number of dead nodes and alive nodes, Frequency, Node Velocity.
VANET, MIPDA, RSU, DOS, MANET, Packet Loss, Node Velocity