Proof-of-QoS: QoS based blockchain consensus protocol

作者: Bin Yu , Joseph Liu , Surya Nepal , Jiangshan Yu , Paul Rimba

DOI: 10.1016/J.COSE.2019.101580

关键词:

摘要: Abstract The consensus protocol is the foundation of all blockchain systems. Existing protocols like Proof-of-Work (PoW) consume a vast amount energy. However, they are severely limited to transaction throughput. Consensus Proof-of-Stake (PoS) have been proposed address this challenge. these compromised fairness by discouraging “poorer” participants and allowing “richest” stakeholders full control over generation blocks. Towards meeting conflicting requirements on throughput fairness, we propose based Quality-of-Service (QoS). In our Proof-of-QoS (PoQ) protocol, entire network divided into small regions. Each region nominates node its QoS. A deterministic Byzantine Fault Tolerance (BFT) then run among nominated nodes. PoQ aims achieve very high as permissionless provides fairer environment for participants. Our experimental results show that can 9.7K transactions per second (TPS) 12

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