Efficient Cluster Head Selection and Trust Based Routing in MANET

Abstract

Abstract Mobile Adhoc Network (MANET) faces different security challenges due to its collaborative and open communication behavior and restricted availability of resources. Routing is hard and vulnerabilities issues are regularly exposed to highly dynamic nature and numerous communication breakdowns induced by mobile nodes. Thus, security measures that can minimize the effects of various attacks must be included in the MANET’s routing protocols. Secure communication with optimal energy is a big challenge in such networks. This paper presents a secure optimal routing scheme. The objective of the scheme is to find the most optimal secure path with low energy consumption using the proposed function. This scheme is divided into two algorithms; the first algorithm finds cluster head effectively and the second computes the trust value of each path for secure communication. The trust value is computed using the trust-based scheme using packet forwarding information. On the basis of the trust value, this algorithm detects the malicious nodes and removes them from the network and then the other proposed routing scheme computes the optimal path. Then path with less hop count and minimum energy usage is selected optimally.