2018 9th International Conference on Information Technology in Medicine and Education (ITME)

1 / 2018-06-30 11:52:23

Model Checking PBFT Consensus Mechanism in Healthcare Blockchain Network

Healthcare, Blockchain network, CTMC, PBFT

now blockchain network is used in some domains such as healthcare, energy trading and so on. However, the research about how to evaluate the performance of the blockchain network is still lacking. In some papers, the performance of blockchain is analyzed by running real blockchain applications. However, the devices and services cost should be considered. In this paper, we aim to use continuous-time Markov chain (CTMC) model to simulate the time response of PBFT (Practical Byzantine Fault Tolerance)-based blockchain network. Some influencing factors such as replica nodes delay and primary node delay will be analyzed. The simulation results also contribute to optimizing the design of blockchain network.