Comprehensive Trust Based Scheme to Combat Malicious Nodes in MANET Based Cyber Physical Systems

A large scale Wireless Sensor Network (WSN) or Mobile Ad hoc Network is to be definitely integrated into Internet as a backbone of Cyber Physical System (CPS), it is indispensable to believe that Cyber physical systems are free from security challenges, such as the detection of malicious attacks. A trust based model is attributed as an important door to defend a large distributed sensor networks in CPS. Trust is perceived as a critical tool to detect malicious node attacks in distributed computing and communication entities, detection of unreliable entities, and uphold decision-making process of various protocols. In this paper, Trust is invoked between participating nodes to improve the performance of Cyber physical systems by improving the degree of cooperation among them. The proposed schemes are also used to establish reliable path in packet forwarding and route finding. The realism, robustness and effectiveness of the proposed model is validated through a broad set of simulations.