Survey: Comparison of mechanisms against denial of service attack in Mobile Ad-Hoc Networks

Mobile Ad-Hoc Network (MANET) is network of wireless communication, dynamic topology, limited resources and lack of centralized administration. MANETs are vulnerable to various types of Denial of Service attack on network layer. In Gray hole and Black hole attacks malicious nodes deliberately disturb data transmission in the network by sending incorrect routing information. It is a challenge to keep the communication route free from such attackers. In this paper, the comparative study of various techniques against Denial of Service attack is made.