Blockchain Model Testing and Implementation Based on Improved PBFT Consensus

Abstract

The main study focuses on the shortcomings of the traditional PBFT consensus algorithm and the DPOS consensus algorithm, and then combines the two algorithms to form a new consensus algorithm from the perspective of optimising the consensus performance of the blockchain, which can achieve several advantages in terms of node reduction view switching, node dynamics, bandwidth overhead reduction, transaction throughput and lower system latency performance. The advantages of the improved PBFT algorithm are illustrated by the experimental data on throughput, system latency of account creation and bandwidth overhead, which are compared to illustrate the effect of the improved PBFT algorithm.