Distributed Direct Neighbour Comparison Based Approach

Mobile Ad-hoc Network (MANET) is a unique-designing network of mobile devices called mobile nodes. Vehicular Ad-hoc Network (VANET) is a prime concept of MANET where security, privacy and reliability are major issues. To support message differentiation in VANET, IEEE 802.11p standard is incorporated in vehicular communication. There are the number of resolution of regarding VANET for driving services, traffic collection data services, user able communication and knowledge services. This network, with its huge cover size, plays a morose role in communication so all types of people use it to gain daily routine necessary service. A tiny poorly error in these can cause great disaster upon roads vitally. Just Imagining an attacker take it control over a worldwide located VANET-based network then he will be able to break it and making cause chaos over all roads. VANET will perform reliable communication by accessing routing info. In this survey paper, we analyze various security aspects and threats in VANET. False messages can take the outcome in serious circumstances like collisions. This breaks in the root application of Perron- Frobenius theorem. It is hiked that the Eigen values of the matrix going well with along the interaction graph can be availed to compute trust values in the VANET enough setting. First of all the trust is calculated by the node or vehicle on the type of messages it received from the other nodes. It sends the calculated trust value to the RSU. The RSU on the other hand again calculate the value of trust And compare the calculated value and received trust value from the node if the match is found it sends a confirmation message to the node. And if match is not found it sends a false message to the node that the message it received is not correct. The node only then send a reply message to other neighbor node about the falsity of the message and the id of the node from which it got this message.