Topology-Aware Cooperative Data Protection in Blockchain-Based Decentralized Storage Networks

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Yang S., HAREEDY A., Calderbank R., Dolecek L.

2020 IEEE International Symposium on Information Theory, ISIT 2020, California, United States Of America, 21 - 26 July 2020, vol.2020-June, pp.622-627 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2020-June
  • Doi Number: 10.1109/isit44484.2020.9174443
  • City: California
  • Country: United States Of America
  • Page Numbers: pp.622-627
  • Keywords: Joint hierarchical coding, cooperative data protection, blockchain technology, decentralized storage networks, DISTRIBUTED STORAGE
  • Middle East Technical University Affiliated: No

Abstract

© 2020 IEEE.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.