A SAMA SCHEME FOR IMPROVING QOS IN 4G MULTIHOPS WIRELESS NETWORKS

There exists severalattributes for a data, and among them confidentiality and security is gained by the entity which is termed as Authentication. The defined entity exhibits the involvement of another entity called as identification involving two or more parties, which in turn confirms an identity. Worldwide interoperability for Microwave Access (WiMAX) and Long-Term Evolution (LTE) has been the alluring Fourth Generation (4G) wireless technology in the networking between vehicles providing explicit quality of service (QoS) and security architecture. In spite of its advantage it has some security threats such as denial of service (DOS), node capture attack, etc., which mainly occurs in Multihop wireless networks. It could be alleviated by secured and prompt authentication methods. In the VANET communication, especially in Multihop networks the forwarder node authentication is more important. So, we need to provide authentication for each and every hops. Hop by Hop message authentication is required to provide high level security in VANET. Simultaneously, the address of the data origin known by the attacker leads to node capture attack. So, to avoid this, we have to consider the source anonymity also. To provide Hop by hop authentication and the source anonymity, we are going to use the SAMA on Elliptic Curve Cryptography in VANET.