区块链适合数据新鲜度吗？--信息量视角
Is Blockchain Suitable for Data Freshness? -- Age-of-Information Perspective
摘要：
区块链的最新进展引发了人们对开发基于区块链的应用程序的浓厚兴趣。虽然数据可以保留在区块链中，但存储的值可以被删除或更新。从搜索数据的用户角度来看，目前还不清楚从区块链存储中发现的数据是否与基于区块链的应用程序的实时决策过程相关。数据新鲜度问题是一个关键因素，特别是在处理实时信息的动态网络中。一般来说，更新数据的交易需要区块链网络内部的额外处理时间，这被称为账本提交延迟。由于这个问题，一些用户可能会收到过时的数据。因此，调查区块链是否适合提供实时数据服务是很重要的。在本文中，我们首先描述了使用Hyperledger Fabric（HLF）的区块链启用（BCE）网络。然后，我们定义了BCE网络的信息年龄（AoI），并研究了影响AoI的因素。分析和实验进行，以支持我们提出的框架。最后，我们将讨论未来的一些挑战。
英文摘要：
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 Due to this problem, some users may receive outdated data.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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
