Topology-Aware Cooperative Data Protection in Blockchain-Based Decentralized Storage Networks
Topology-Aware Cooperative Data Protection in Blockchain-Based Decentralized Storage Networks
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DOI：
10.1109/isit44484.2020.9174443
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发表时间：
2020-01
期刊：
影响因子：
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通讯作者：
Siyi Yang;Ahmed Hareedy;A. Calderbank;L. Dolecek
中科院分区：
文献类型：
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作者：
Siyi Yang;Ahmed Hareedy;A. Calderbank;L. Dolecek
区块链技术的不断崛起，正在推动各种信息系统走向去中心化。与与特定供应商关联的集中式云存储相比，基于区块链的分布式存储网络(DSN)为客户提供了显著更高的隐私和更低的成本。需要编码来检索存储在故障组件上的数据。虽然用于集中存储的编码解决方案已经被深入研究，但用于DSN的编码解决方案尚未被讨论。在本文中，我们提出了一种编码方案，其中每个节点通过与任意给定拓扑的异类DSN中的邻居节点合作来获得额外的保护。与已有的网络编码方法相比，我们的方案可以获得更快的恢复速度，并且与我们以前的工作相比，我们的方案可以纠正更多的删除模式。
The continuous rise of the blockchain technology is moving various information systems towards decentralization. Blockchain-based decentralized storage networks (DSNs) offer significantly higher privacy and lower costs to customers compared with centralized cloud storage associated with specific vendors. Coding is required to retrieve data stored on failing components. While coding solutions for centralized storage have been intensely studied, those for DSNs have not yet been discussed. In this paper, we propose a coding scheme where each node receives extra protection through cooperation with nodes in its neighborhood in a heterogeneous DSN with any given topology. Our scheme can achieve faster recovery speed compared with existing network coding methods, and can correct more erasure patterns compared with our previous work.