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Blockchain-Based Dynamic Spectrum Sharing for 6G UIoT Networks

The Ubiquitous IoT (UIoT) is a three-dimensional network that spans space-air-ground. It contains multiple network elements such as satellites, terrestrial cellular networks, terrestrial gateways, and data centers. Due to the need for openness and sharing among different operators, it is necessary to research wireless spectrum sharing. The new technologies of blockchain and the 6G hybrid cloud pose a potential solution. We propose to migrate the spectrum sharing system of 6G to the hybrid blockchain. Subdividing the granularity of the spectrum resources of UIoT devices in multiple dimensions can enable reliable and secure random access to a large amount of UIoT terminal data. Cloud computing and smart contract technology can effectively ensure the interconnection of massive data and the authenticity of externally perceived data.