BRTCM: Black Hole Removal Using Threshold and Co-operative Method
Aditya P. Bakshi, Atul Mishra, Heena Batra · 2014
A Mobile Ad-hoc Network is an infrastructure-less network and it is prone to various attacks at due to its unique characteristics such as open peer-to-peer network architecture, shared wireless medium, stringent resource constraints, and highly dynamic network topology. Secure communication between the mobile nodes is our prime concern. MANET is vulnerable to various attacks at different layers. One of the attacks is Black Hole attack at network layer. Black Hole attack is a kind of Denial of Service attack in which an adversary node advertise itself as it is having the shortest path from source to destination in order to get selected as a part of the path through which data is to be sent. When data is sent through this node, it just drops the packet or delays it to prevent the communication. In this paper, new algorithm has been proposed to remove Black Hole nodes to provide secure communication between mobile nodes. The proposed algorithm first of all finds out the probable list of malicious node using a threshold method and then it confirms the malicious behavior of node using co-operative method. The proposed algorithm is very efficient to find out the Black Hole node than the existing solutions proposed earlier.