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Temporal Index Scheme of Hyperledger Fabric System in IoT
Wireless Communications and Mobile Computing ( IF 2.146 ) Pub Date : 2021-07-12 , DOI: 10.1155/2021/9945530
Yongqiang Lu 1 , Zhaobin Liu 1 , Shaoqi Wang 1 , Zhiyang Li 1 , Weijiang Liu 1 , Xuhui Chen 2
Affiliation  

As a large number of mobile terminals are connected to the IoT, the security problem of IoT is a challenge to the IoT technology. Blockchain technology has the characteristics of decentralization, data encryption, smart contract, and so on, especially suitable in the complex heterogeneous network. However, sequential access based on block files in the blockchain hinders efficient query processing. The problem is due to current blockchain solutions do not support temporal data processing. In this paper, we propose two index building methods (TISD and TIF) to address this issue in Hyperledger Fabric System. TISD (temporal index based on state databases) segments the historical data by time interval in the time dimension and indexes events at the same time interval. TIF (temporal index based on files) builds the index of files by the block transaction data, which is arranged in chronological order and is stored at a certain time interval. In the experimental part, we compare the query time on two datasets and analyse the query performance. Experiments demonstrated that our two methods are relatively stable in overall time performance on different datasets in the Hyperledger Fabric System.

中文翻译:

物联网中Hyperledger Fabric系统的时序索引方案

由于大量移动终端接入物联网,物联网的安全问题对物联网技术提出了挑战。区块链技术具有去中心化、数据加密、智能合约等特点,特别适用于复杂的异构网络。然而,基于区块链中块文件的顺序访问阻碍了高效的查询处理。问题是由于当前的区块链解决方案不支持时间数据处理。在本文中,我们提出了两种索引构建方法(TISD 和 TIF)来解决 Hyperledger Fabric 系统中的这个问题。TISD(基于状态数据库的时间索引)在时间维度上按时间间隔对历史数据进行分段,并在同一时间间隔内索引事件。TIF(基于文件的时间索引)通过区块交易数据建立文件索引,按时间顺序排列,按一定时间间隔存储。在实验部分,我们比较了两个数据集上的查询时间并分析了查询性能。实验表明,我们的两种方法在 Hyperledger Fabric 系统中不同数据集上的整体时间性能相对稳定。
更新日期:2021-07-12
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