A Caching-Enabled Permissioned Blockchain Scheme for Industrial Internet of Things Based on Deep Reinforcement Learning

Figure 2

Network architecture. A network includes a number of organizations as its participants. Each organization holds consensus nodes, storage nodes, storage-constrained computing nodes, and many IIoT devices. The computing nodes collect data from IIoT devices and handle them by smart contracts. New transactions will be submitted to the consensus nodes. These transactions will be ordered, assembled into new blocks, and delivered. Finally, the new blocks will be stored completely in the specific storage nodes, and their headers will be delivered to all other nodes.