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IoT as a Service. Third International Conference, IoTaaS 2017, Taichung, Taiwan, September 20–22, 2017, Proceedings

Research Article

T-SCMA: Time Domain Sparse Code Multiple Access for Narrow Band Internet of Things (NB-IoT) (Invited Paper)

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  • @INPROCEEDINGS{10.1007/978-3-030-00410-1_43,
        author={Zhenzhen Yan and Bo Li and Mao Yang and Zhongjiang Yan and Zhicheng Bai},
        title={T-SCMA: Time Domain Sparse Code Multiple Access for Narrow Band Internet of Things (NB-IoT) (Invited Paper)},
        proceedings={IoT as a Service. Third International Conference, IoTaaS 2017, Taichung, Taiwan, September 20--22, 2017, Proceedings},
        proceedings_a={IOTAAS},
        year={2018},
        month={10},
        keywords={Internet of Things Sparse code multiple access NB-IoT Connectivity Network capacity},
        doi={10.1007/978-3-030-00410-1_43}
    }
    
  • Zhenzhen Yan
    Bo Li
    Mao Yang
    Zhongjiang Yan
    Zhicheng Bai
    Year: 2018
    T-SCMA: Time Domain Sparse Code Multiple Access for Narrow Band Internet of Things (NB-IoT) (Invited Paper)
    IOTAAS
    Springer
    DOI: 10.1007/978-3-030-00410-1_43
Zhenzhen Yan1,*, Bo Li1,*, Mao Yang1,*, Zhongjiang Yan1,*, Zhicheng Bai1,*
  • 1: Northwestern Polytechnical University
*Contact email: yanzhenzhen@mail.nwpu.edu.cn, libo.npu@nwpu.edu.cn, yangmao@nwpu.edu.cn, zhjyan@nwpu.edu.cn, baizhicheng@mail.nwpu.edu.cn

Abstract

Nowadays the development of internet of things (IoT) has become the next major growth point of wireless communication. And narrow band has become a new trend in the development of IoT. Achieving massive connectivity and ever-increasing network capacity has become an important subject of our research. We find that sparse code multiple access (SCMA), a type of non-orthogonal multiple access, is supposed to meet these needs, but it can hardly apply to NB-IoT because narrow band does not have the ability of spread spectrum. On this basis, we introduce SCMA into time domain, named T-SCMA, for NB-IoT. By multiplexing SCMA in the time domain and defining a MAC frame structure, we can significantly improve both connectivity and network capacity, ultimately obtain a much higher throughput property gain over time division multiple address (TDMA).

Keywords
Internet of Things Sparse code multiple access NB-IoT Connectivity Network capacity
Published
2018-10-17
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-030-00410-1_43
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