Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (5): 1435-1442.doi: 10.13229/j.cnki.jdxbgxb.20210881

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TBCM consensus mechanism and parallel storage structure

Jian-feng CHU1(),Yi-ming WANG1,Xiao-chun HUANG2,Liang HU1   

  1. 1.College of Computer Science and Technology，Jilin University，Changchun 130012，China
    2.College of Geoexploration Science and Technology，Jilin University，Changchun 130061，China
  • Received:2021-09-07 Online:2023-05-01 Published:2023-05-25

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Abstract:

The blockchain consensus mechanism with directed acyclic graph structure can be executed transactions in parallel， but its efficiency and stability are poor. Therefore， some consensus mechanisms deal with transactions in the way of alliance chain. In this paper， a parallel storage structure based on directed acyclic graph is designed and proposed to realize the Transaction block confirmation mechanism （TBCM） consensus mechanism through this storage structure. Therefore， TBCM consensus mechanism can effectively improve the parallel processing ability of the alliance chain for a large number of transactions. In TBCM， the nodes are organized in the way of alliance chain， and the verification node groups verifie the transaction blocks generated in the network. The synchronous users in the network of parallel storage structure do not have to deal with the transaction load of the whole network， and the verification node group processes the blocks in the network of parallel. The consensus mechanism designed by this structure makes the alliance chain system have the ability to process transactions in parallel， so as to improve the real-time performance of transactions. TBCM has the advantage of parallel real-time transaction， and can achieve higher stability and transaction confirmation efficiency.

Key words: blockchain, consensus algorithm, alliance chain, directed acyclic graph, parallel processing

CLC Number: 

  • TP311.13

Fig.1

Sync nodes"

Fig.2

Inspected nodes"

Fig 3

Inspected/Supervised nodes"

Fig.4

Comparison of parallel transaction verification capability"

Fig.5

Comparison of transaction processing capacity"

Fig.6

Correlation comparison between the number of verification nodes and verification cycle"

Fig.7

Comparison of transaction verification efficiency"

Table 1

Comparison of consensus algorithms for different data structures"

共识机制IoTANanoTBCM
并行性60 b/T10 b/T90 b/T
验证效率5 T100 T12 T
可监督性弱监督中等监督强监督
分支问题无分支无分支无分支
去中心化程度高度去中心化部分去中心化部分去中心化
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