DABFT: A Novel Adaptive Byzantine Fault Tolerance Framework for High-Performance Blockchain Consensus

Authors

  • Veeramma Yatnalli JSS Academy of Technical Education, Bengaluru, India
  • Saroja S. Bhusare JSS Academy of Technical Education, Bengaluru, India
  • Praveen M. Dhulavvagol School of Computer Science and Engineering, KLE Technological University, Hubli, India
  • Guruprasad Konnurmath School of Computer Science and Engineering, KLE Technological University, Hubli, India
  • Rajani Shetty SJB Institute of Technology, Bengaluru, India
Volume: 15 | Issue: 4 | Pages: 25313-25317 | August 2025 | https://doi.org/10.48084/etasr.11970

Received: 7 May 2025 | Revised: 28 May 2025 | Accepted: 6 June 2025 | Online: 11 July 2025


Corresponding author: Saroja S. Bhusare

Abstract

Byzantine Fault Tolerance (BFT) consensus mechanisms are vital for ensuring reliability in permissioned blockchain networks. However, existing BFT implementations such as Quorum-based BFT (QBFT), Istanbul BFT (IBFT) 2.0, and CLIQUE within the Hyperledger Besu framework face significant challenges, including high resource consumption, limited throughput, and scalability bottlenecks, particularly under complex and high-volume smart contract workloads. In this paper, we propose Dynamic Adaptive Byzantine Fault Tolerance (DABFT), a novel consensus framework designed to address these limitations through Adaptive Quorum Selection (AQS) and Optimized Transaction Batching (OTB). We evaluate DABFT using Hyperledger Caliper, benchmarking its performance against established BFT protocols under diverse transaction loads and operational conditions. The results demonstrate that DABFT achieves up to 30% higher throughput, 25% lower latency, and a 15% reduction in resource usage compared to QBFT. These improvements highlight DABFT’s potential to significantly enhance the performance, scalability, and resource efficiency of enterprise-grade blockchain deployments.

Keywords:

Byzantine Fault Tolerance (BFT), blockchain, Quorum-based BFT (QBFT), CLIQUE, ERC-20, hyperledger caliper

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How to Cite

[1]
V. Yatnalli, S. S. Bhusare, P. M. Dhulavvagol, G. Konnurmath, and R. Shetty, “DABFT: A Novel Adaptive Byzantine Fault Tolerance Framework for High-Performance Blockchain Consensus”, Eng. Technol. Appl. Sci. Res., vol. 15, no. 4, pp. 25313–25317, Aug. 2025.

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Copyright (c) 2025 Veeramma Yatnalli, Saroja S. Bhusare, Praveen M. Dhulavvagol, Guruprasad Konnurmath, Rajani Shetty

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