A Blockchain-Based Attack Detection Mechanism in Healthcare Cyber Physical Systems Against Jamming Attacks

Healthcare Cyber Physical Systems (CPS) are vulnerable to cyber risks due to their dependency on wireless communication. Due to its centralized safety features and limited security capabilities, CPS networks need help maintaining network and storage security. This paper suggests a jamming attack detection system for healthcare CPS based on trust and blockchain technology. The CPS and device layer and the fog layer are the two layers that make up the framework. In smart healthcare environments, it ensures secure and reliable communication between sensor nodes, wearable sensors, medical devices, and monitoring systems. The system uses blockchain technology for decentralized consensus, trust evaluation, and secure data management. Results show that the suggested approach successfully identifies and minimizes jamming assaults, with higher detection rates (i.e., 6.50–22.20%) and lower baseline packet loss rates (i.e., 3.90–33.30%).