论文标题
区块链适合数据新鲜度吗？ - 信息年龄的观点
Is Blockchain Suitable for Data Freshness? -- Age-of-Information Perspective
论文作者
论文摘要
区块链的最新进展引起了人们对开发基于区块链的应用的重大兴趣。尽管数据可以保留在区块链中，但可以删除或更新存储的值。从搜索数据的用户观点来看，尚不清楚区块链存储中发现的数据是否与基于区块链应用程序的实时决策过程有关。数据新鲜问题是关键因素，尤其是在处理实时信息的动态网络中。通常，用于续订数据的交易需要在区块链网络中进行额外的处理时间，这称为Ledger-Commitment Litency。由于这个问题，一些用户可能会收到过时的数据。结果，重要的是研究区块链是否适合提供实时数据服务。在本文中，我们首先用HyperLeDger Fabric（HLF）描述了支持区块链（BCE）网络。然后，我们定义了BCE网络的信息年龄（AOI），并研究了该AOI中的影响因素。进行分析和实验以支持我们提出的框架。最后，我们通过讨论一些未来的挑战来得出结论。
Recent advances in blockchain have led to a significant interest in developing blockchain-based applications. While data can be retained in blockchains, the stored values can be deleted or updated. From a user viewpoint that searches for the data, it is unclear whether the discovered data from the blockchain storage is relevant for real-time decision-making process for blockchain-based application. The data freshness issue serves as a critical factor especially in dynamic networks handling real-time information. In general, transactions to renew the data require additional processing time inside the blockchain network, which is called ledger-commitment latency. Due to this problem, some users may receive outdated data. As a result, it is important to investigate if blockchain is suitable for providing real-time data services. In this article, we first describe blockchain-enabled (BCE) networks with Hyperledger Fabric (HLF). Then, we define age of information (AoI) of BCE networks and investigate the influential factors in this AoI. Analysis and experiments are conducted to support our proposed framework. Lastly, we conclude by discussing some future challenges.
