Abstract
Low transaction efficiency remains one of the primary constraints to the development of permission blockchain. To enhance the communication performance of blockchain, the majority of research focuses on optimizing the local architecture of blockchain and improving consensus. In practice, increasing the block dissemination capability at the network layer can significantly improve transaction efficiency. We find that the redundancy and instability of the gossip protocol as a broadcast method in Hyperledger Fabric have a significant impact on communication performance. In this work, we introduce the idea of density clustering to propose the DC-Gossip broadcast protocol, constructing a stable network architecture with highly dense connectivity for the blockchain network layer. This architecture can effectively reduce the propagation latency and ensure the integrity of the distributed ledger. In our experiments with Fabric, DC-Gossip reduces latency by more than 19% after 40 blocks are propagated in a stable network environment with more than 100 nodes. Moreover, the latency decreases by 14% in a dynamic network under the identical circumstances.
This work is supported by the National Natural Science Foundation of China under Grant No. 61772180, the Key-Area Research and Development Program of Guangdong Province 2020B1111420002, and the Science and Technology Project of Department of Transport of Hubei Province 2022-11-4-3, and the Innovation Fund of Hubei University of Technology BSQD2019027BSQD2019020 and BSQD2016019. We sincerely thank the anonymous reviewers for their very comprehensive and constructive comments.
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Xu, Z. et al. (2022). DC-Gossip: An Enhanced Broadcast Protocol in Hyperledger Fabric Based on Density Clustering. In: Wang, L., Segal, M., Chen, J., Qiu, T. (eds) Wireless Algorithms, Systems, and Applications. WASA 2022. Lecture Notes in Computer Science, vol 13473. Springer, Cham. https://doi.org/10.1007/978-3-031-19211-1_1
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