基于改进PBFT算法的区块链模型测试与实现

Blockchain Model Testing and Implementation Based on Improved PBFT Consensus

主要研究传统的PBFT共识算法和DPOS共识算法的不足之处,然后根据两种算法的缺陷,从优化区块链共识性能的角度,将两种算法结合形成新的共识算法,改进之后的算法,可以实现节点的减少视图切换,节点动态性增减,减少带宽开销,提升交易吞吐量以及优秀系统时延性能几个方面优点,并且分别从吞吐量和创建账户事务时延以及带宽开销的实验数据来做对比分析,进而说明对传统PBFT算法改进的效果。

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 optimizing 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 excellent system latency performance.The advantages of the improved PBFT algorithm are illustrated by the experimental data on throughput,account creation transaction latency and bandwidth overhead,which are compared to illustrate the effect of the improved PBFT algorithm.