Modeling Distributed and Configurable Hierarchical Blockchain over SDN and Fog-Based Networks for Large-Scale Internet of Things

With an emphasis on the role of automation in Industry 4.0, there has been widespread growth in the adoption of industrial Internet of Things (IoT). However, as IoT networks become larger with billions of heterogeneous devices, scalability and efficient data routing become issues, especially in the context of existing blockchain models. Managing network traffic, latency as well as facilitating high throughput is essential for the fluid functioning of real-time systems. This paper aims to deal with such existing issues by discussing newer hierarchical blockchain models over existing SDN and fog-based networking frameworks for large-scale IoT applications. We also prove the model’s feasibility through performance testing through both native and platform-based implementations to support our quest for enhanced scalability and security.