Journal on Communications ›› 2020, Vol. 41 ›› Issue (10): 48-58.doi: 10.11959/j.issn.1000-436x.2020211

Special Issue: 区块链 6G

• Topics: Convergence of Communications and Computing for the IoE • Previous Articles     Next Articles

6G oriented blockchain based Internet of things data sharing and storage mechanism

Yu’na JIANG1,Xiaohu GE1,Yang YANG2,3(),Chengxiang WANG4,5,Jie LI6   

  1. 1 School of Electronic Information and Communication,Huazhong University of Science and Technology,Wuhan 430074,China
    2 School of Information Science and Technology,ShanghaiTech University,Shanghai 201210,China
    3 Research Center for Network Communication,Peng Cheng Laboratory,Shenzhen 518000,China
    4 National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China
    5 National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China
    6 School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Revised:2020-10-10 Online:2020-10-25 Published:2020-11-05
  • Supported by:
    The National Key Research and Development Program of China(SQ2020YFB210291);The National Natural Science Foundation of China(61932014);Graduates’ Innovation Fund,Huazhong University of Science and Technology(2020yjsCXCY060)

Abstract:

Considering the heterogeneity of various IoT system and the single point failure of centralized data-processing platform,a decentralized IoT data sharing and storage method based on blockchain technology was proposed.The block consensus and decentralized storage of shared data were realized through the PoS consensus mechanism.A block layered propagation mechanism between consensus node and verified node was proposed based on the Gossip protocol.The block propagation delay model and decentralization evaluation model of blockchain networks were derived.The trade-off between the block propagation delay and the decentralization degree of networks was analyzed.The simulation results demonstrate that the block propagation delay and degree of network decentralization decrease with the increase of minimal capabilities of consensus nodes.As an application example,in the trajectory data sharing scenario of confirmed patients,the data sharing smart contract is implemented and tested based on the Ethereum development platform.

Key words: blockchain, data sharing, data storage, block propagation delay, decentralization

CLC Number: 

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