Novel routing protocol for secure data transmission in wireless ad hoc networks

Abstract

The crucial requirement in MANET is to establish the efficient path among destination and source nodes based on the cooperation among the mobiles nodes. The routing protocols trust the mobile nodes for data transmission. However, MANETs are vulnerable to various security threats. The attacks like grayhole, blackhole, Denial of Service (DoS) attacks etc. performed on MANET. The presence of such malicious nodes in network may lead to serious concerns related to network security. The most of existing security methods for MANET consider the packet delivery rate (PDR) parameter to detect malicious nodes. However, the node mobility, frequent link breaks, queue overflow etc. may be the other reasons for less PDR in MANET. For any security method, detecting the main cause of packet loss is vital. Therefore, along with cooperative security solution, methods required to correctly identify the reason of packet losses. In this paper, we proposed hybrid cooperative bait detection system (HCBDS) in which the reverse tracing and correct identification of packet losses algorithms proposed to correctly detect the malicious node in network. Using the network parameters the accurate reason of dropped PDR determined. The results presented in this paper show that our security model achieves significant improvement in performance under the presence of malicious nodes.