A Scalable Multi-Layer PBFT Consensus for Blockchain

• Published in: IEEE transactions on parallel and distributed systems Vol. 32; no. 5; pp. 1146 - 1160
• Main Authors: Li, Wenyu, Feng, Chenglin, Zhang, Lei, Xu, Hao, Cao, Bin, Imran, Muhammad Ali
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.05.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Blockchain; Communication; communication complexity; Complexity; Complexity theory; consensus mechanism; Cryptography; Fault tolerance; Group communication; Internet of Things; Multilayers; node scalability; Nodes; PBFT; Peer-to-peer computing; Scalability; Security; System effectiveness; Throughput

Practical Byzantine Fault Tolerance (PBFT) consensus mechanism shows a great potential to break the performance bottleneck of the Proof-of-Work (PoW)-based blockchain systems, which typically support only dozens of transactions per second and require minutes to hours for transaction confirmation. Ho...