Trust Management Approaches in Mobile Adhoc Networks

TLDR: Three trust management approaches has been proposed to avoid the misbehaving nodes from routing in MANET, evaluating nodes parameters intimacy, Energy, packet delivery and co-ordination as context values over time and healthier packet delivery ratio, reduced end-to-end delay.

Abstract: Mobile Adhoc Networks are a collection of mobile nodes interconnected by wireless media links. Here nodes misconduct owing to topology variations, exposed medium, short signal range, the absence of centralized approach and limited Energy. Node misbehaviors are critical concerns for routing in MANET. Under the given scenario, the nodes in MANET might decline to collaborate by not forwarding data with others for egoistic causes. However, it mandated that the nodes must collaborate or cooperate to route the packets towards the appropriate destination. The trust relationship among the nodes in a disseminated way helps in detecting the misbehaviors/selfish nodes. To avoid the misbehaving nodes from routing three trust management approaches has been proposed. In the first approach, Trust approach for Discovering and Quarantine the Misbehaviors (TDQM), the number of dropped packets as a parameter in the neighbor observation trust evaluation. Energy utilized for forwarding all types of packets, packet integrity, and neighbor observation, trust is recommended for trust evaluation. A node with high trust elected as a certification agency to release certificates for routing packets between the desired nodes. Moreover, untrustworthy nodes trust, computed is redeemed and isolated from routing. A Second approach proposed is Context residual Energy Based Trust Management in MANET (CEBTM), Retrieved context data like residual Energy and packets dropping of the nodes considered with weights for neighbor observation trust evaluation and reputation-based trust based on fuzzy for analysis. Revocation of trust of a generated negative alarm is verified based on the probability of reliability. In the Enhancing Trust in a MANET using trust and dynamic with Energy Efficient Multipath Routing Protocol approach (ETMRP), evaluating nodes parameters intimacy, Energy, packet delivery and co-ordination as context values over time. Here trust based path chosen by Energy efficient multipath routing. The simulation results of the proposed approaches provide healthier packet delivery ratio, reduced end-to-end delay as compared with other methods.