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Wireless and Satellite Systems. 12th EAI International Conference, WiSATS 2021, Virtual Event, China, July 31 – August 2, 2021, Proceedings

Research Article

Multi-user Shared Access Research in Cell-Free Massive MIMO

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  • @INPROCEEDINGS{10.1007/978-3-030-93398-2_72,
        author={Haoran Zhang and Shaochuan Wu},
        title={Multi-user Shared Access Research in Cell-Free Massive MIMO},
        proceedings={Wireless and Satellite Systems. 12th EAI International Conference, WiSATS 2021, Virtual Event, China, July 31 -- August 2, 2021, Proceedings},
        proceedings_a={WISATS},
        year={2022},
        month={1},
        keywords={Cell-free massive MIMO MUSA Spectrum efficiency},
        doi={10.1007/978-3-030-93398-2_72}
    }
    
  • Haoran Zhang
    Shaochuan Wu
    Year: 2022
    Multi-user Shared Access Research in Cell-Free Massive MIMO
    WISATS
    Springer
    DOI: 10.1007/978-3-030-93398-2_72
Haoran Zhang, Shaochuan Wu,*
    *Contact email: scwu@hit.edu.cn

    Abstract

    With the advent of the 5G era, massive device access and explosive data traffic grow rapidly, it is imperative to improve network throughput. As a new network architecture, Cell-Free Massive MIMO can effectively improve network throughput. MUSA (Multi-user shared access), as a kind of NOMA (non-orthogonal multiple access technology), has a great gain in spectrum efficiency. Integrating MUSA’s related technologies into the Cell-Free Massive MIMO system can effectively improve the spectrum efficiency and meet the massive access requirements.

    In this paper, by using MUSA, the Cell-Free Massive MIMO system is improved. A clustering method is proposed. Each cluster corresponds to a pilot. Users in the cluster use MUSA to distinguish and detect multi-users. For the new model, theoretical analysis and simulation of spectrum efficiency are carried out. The results show that the improved Cell-Free Massive MIMO system has better spectrum efficiency.

    Keywords
    Cell-free massive MIMO MUSA Spectrum efficiency
    Published
    2022-01-21
    Appears in
    SpringerLink
    http://dx.doi.org/10.1007/978-3-030-93398-2_72
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