Dynamic Spectrum Sharing Based on the Rentable NFT Standard ERC4907
Centralized dynamic spectrum sharing (DSS) faces critical challenges including data security vulnerabilities, high administrative overhead, and poor scalability. To address these issues, this paper proposes the first blockchain-based DSS system built upon the ERC-4907 rentable NFT standard. It introduces Non-Fungible Spectrum Tokens (NFSTs) to uniquely identify spectrum resources while decoupling ownership from usage rights. Leveraging on-chain smart contract–driven auctions and a Web3-enabled frontend platform, the system enables fine-grained, verifiable, and auditable decentralized spectrum leasing. Experimental evaluation demonstrates significant improvements in spectrum allocation security and transaction efficiency, substantial reduction in management costs, and robust support for high-concurrency leasing requests. This work constitutes the first empirical validation of ERC-4907’s feasibility and practicality for wireless spectrum governance.