Private Blockchain-Based Fog-IoT Platform for Wearables in Healthcare

The introduction of wearable Internet of Things (IoT) devices in healthcare services has recently increased due to their convenience and effectiveness. As a result, more devices are added to the network daily, creating concerns about data security and privacy, network management, and device standardization. In response, we propose a fog-based IoT platform to address these issues. We use the fog’s distributed structure to allow a more systematic organization of wearable IoT devices. We reinforce the security and privacy of the data within the network by implementing a private blockchain design. Each addition aims to improve the organization of wearable IoT devices within the healthcare network and patient data protection. To examine its performance, we designed a testbed to evaluate the advantages and feasibility of our platform. The results suggest that the decentralized design is viable over unbalanced networks in terms of network size and growing transmitted data overhead.