TKM sharding algorithm for star blockchain architecture

Xu Keshenga
Xie Zhaochib
a. School of Software, b. School of Computer & Communication Engineering, Dalian Jiaotong University, Dalian Liaoning 116021, China

Abstract

The throughput of blockchain systems is severely insufficient, and the most effective solution to this problem is parallelization processing. The parallelization scheme is mainly a star architecture. Currently, the star architecture mostly uses account random sharding for node sharding in the system, and the system throughput of this sharding method is still insufficient. In response to this issue, this paper proposed a TKM sharding algorithm based on star structure, which improved the original K-means clustering algorithm and applied it to node sharding. The TKM sharding algorithm combined clustering algorithm with blockchain network sharding technology, allowing nodes to be sharded based on geographical location, greatly increasing the probability of transactions between neighboring nodes being intra chip transactions, thereby improving system throughput. At the same time, it introduced time stamps on the basis of the original algorithm to reduce attacks from malicious nodes. Simulation experiments show that this algorithm improves the maximum system throughput by 20% compared to traditional random sharding algorithms. Based on the above flux model, the optimal number of shards for the star blockchain system based on the TKM algorithm is obtained through experiments.

Foundation Support

辽宁省重点研发计划资助项目(2022JH2/101300269)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.06.0289
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 3
Section: Technology of Blockchain
Pages: 683-687
Serial Number: 1001-3695(2024)03-006-0683-05

Publish History

[2023-11-17] Accepted Paper
[2024-03-05] Printed Article

Cite This Article

徐克圣, 谢诏驰. 星型区块链架构的TKM分片算法 [J]. 计算机应用研究, 2024, 41 (3): 683-687. (Xu Kesheng, Xie Zhaochi. TKM sharding algorithm for star blockchain architecture [J]. Application Research of Computers, 2024, 41 (3): 683-687. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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