A Decentralized Oracle Architecture for a Blockchain-Based IoT Global Market

【Author】 Gigli, Lorenzo; Zyrianoff, Ivan; Montori, Federico; Aguzzi, Cristiano; Roffia, Luca; Di Felice, Marco

【Source】IEEE COMMUNICATIONS MAGAZINE

【影响因子】9.030

【Abstract】The Internet of Things (IoT) envisions a global market in which it would be possible to easily get data from IoT devices across the globe. However, the potential of this idea still needs to be unlocked. Centralized architectures fall short due to their lack of transparency and tendency to create silos. On the other hand, blockchain technology enables the creation of distributed and trustworthy systems, but its integration with the IoT is still a matter of research. IoT-based scenarios often employ numerous devices for the same sensing task, which may be heterogeneous and unreliable by purpose. In our vision, IoT applications should rely on data and its quality rather than on single providers. For this purpose, we propose an architecture that enables a decentralized IoT global market in which clients pay for data and device owners are rewarded for providing it. Our solution employs a distributed oracle layer on top of smart contracts powered by a distributed global network of IoT devices. The system supports IoT data source decoupling since the end-user can perform semantic queries bounded to specific locations and data types without specifying the target devices. In addition, it features automatic discovery, interoperability mechanisms, and reputation algorithms for the selection of trustworthy data sources. Our results show that the proposed system is robust and consistently provides quality data, even with multiple malicious data sources.

【Keywords】Performance evaluation; Soft sensors; Smart contracts; Globalization; Systems support; Blockchains; Decentralized applications; Internet of Things; Semantic Web

【发表时间】2023 AUG

【收录时间】2023-10-19

【文献类型】实验仿真

【主题类别】

区块链技术-协同技术-物联网