A High Efficiency Network Using DAG and Consensus in Blockchain
Kaituo Cao, Fei Lin, Chaohui Qian, Keyu Li · 2019
Decentralized autonomous system based on blockchain has replaced traditional trusted third parties to process electronic payments. Blockchain has the advantages of decentralization, transparency, security, etc. and thus has great potential for development. But the chain structure and mining in the blockchain increase transaction latency and reduce the number of transactions per second (TPS). Therefore, the SDVP model is proposed to solve the problem in this paper. The model uses a self-referencing directed acyclic graph (DAG) structure and a voting-based PBFT consensus algorithm. The new model not only has good reliability, but also significantly improves the speed of transaction generation and verification, and has high efficiency of transaction processing. These experimental results demonstrate that the TPS of SDVP model under different parameters is between 600 and 1400, which is better than PayPel and has highly efficient transaction processing capabilities. It can also be observed that the model exhibits good fault tolerance when attacked.