The Security Challenges with Cognitive Radio Environments for VANETS

Vehicle networks have become a prominent research area in Intelligent Transportation System (ITS) due to the nature of and Feature providing a high level of road safety and improved tracking management ITS can provide services to tracking authorities and precautionary measures for drivers and passengers, and VANETs is a new platform with a bright future ahead of it, but it still faces significant obstacles. Furthermore, the most important aspect of cognitive radio networks is security, and it is one of the features that should be given particular consideration, particularly in the field of security. We concentrate on general VANETs protection mechanisms in this article, which is divided into three sections. The first section provides a comprehensive overview of VANETs security features, risks, and requirements. To implement a robust VANETs infrastructure that allows for effective contact between parties, these requirements must be taken into account. Current security architectures and well-known security specification protocols are described in detail. The second approach relies on reclassifying the various VANET attacks and remedies that have been discussed in the literature. The third approach compares each of these innovations in VANETs using well-known security principles. Then we go through some of the open problems and technical challenges surrounding VANETs security, which can help researchers decide whether or not to pursue this field.