Development Of SDR-based Blockchain Platform For Spectrum Management

With the commercial applications of 5G mobile communication and advancement of 6G research,mobile communication devices experience explosive growth.Meanwhile,for the natural scarcity of spectrum,the management of spectrum becomes more and more striking.With the appearance and fast development of blockchain technology,the advantages of blockchain(such as decentralization,security and so on)provide a new paradigm for the spectrum management.Blockchain-based spectrum management is regarded as a significant direction of 6G.At present,the research on blockchain-based spectrum management at home and abroad is mostly in the theoretical and simulation analysis stage and there is a lack of measurement and performance verification of blockchain-based spectrum management.In this thesis,a Software Defined Radio(SDR)-based blockchain platform is developed for spectrum management,which takes the characteristics of blockchain technology and the requirements of future spectrum management into consideration.The main content is as follows.Firstly,technical features and theoretical researches as well as current situation of practice in the aspect of spectrum management at home and abroad are summarized.Secondly,an architecture of SDR-based blockchain platform for spectrum management is designed.Based on this architecture,SDR is used to simulate the initiators and participants of spectrum transactions.An open source blockchain platform—Ethereum is used to build a spectrum management platform to deal with the spectrum transactions between spectrum owners,which can satisfy the different spectrum requirements of SDR.The testing process of SDR and blockchain are separately introduced in details.Meanwhile,the rationality of the architecture of SDR-based blockchain platform for spectrum management is verified.Thirdly,a method of data connecting between SDR and blockchain is introduced.For the problem in data transmission of SDR and blockchain,MATLAB is firstly used to debug SDR and communicate with blockchain.MATLAB transfers data into the Remix which supports smart contract.Data is processed through smart contracts and then smart contracts are deployed on the Ethereum to realize spectrum transactions and management.Finally,the results is fed back to SDR through Ethereum to form a closed data loop.Finally,the feasibility of blockchain-based spectrum management is verified.In this thesis,two nodes and three nodes are separately created on Ethereum.The smart contract deployed on the private chain manages the spectrum transactions between nodes and processes the spectrum data of each node.The feasibility of applying blockchain combined with smart contract to manage spectrum transactions is verified.