Chinese Journal on Internet of Things ›› 2019, Vol. 3 ›› Issue (1): 37-44.doi: 10.11959/j.issn.2096-3750.2019.00092

• Theory and Technology • Previous Articles     Next Articles

Performance analysis of dual non-orthogonal multiple access technology in the Internet of things

Dongbo LI1,2,Min JIA1,Qing GUO1,Xuemai GU1,Xiaofeng LIU1   

  1. 1 School of Electronics and Information,Harbin Institute of Technology,Harbin 150001,China
    2 CETC Key Laboratory of Aerospace Information Applications,Shijiazhuang 050081,China
  • Revised:2019-03-06 Online:2019-03-01 Published:2019-04-04
  • Supported by:
    The National Natural Science Foundation of China(61671183);The National Natural Science Foundation of China(61771163);The Open Fund Project of CETC Key Laboratory of Aerospace Information Applications(SXX18629T022)

Abstract:

With the rapid development of many technologies such as smart city,artificial intelligence and edge computing,the future Internet of things will face the problems of massive terminal access and spectrum resource constraints.A dual non-orthogonal multiple access (D-NOMA) technology based on high spectral efficiency secure access (HSESA) was proposed,which combined non-orthogonal access in the code domain and non-orthogonal multiplexing in the frequency domain,and had good spectral efficiency performance.The sender and receiver were optimized,and multiple users were mapped directly to the overlapping subcarriers through the sparse codebook.The performance analysis under the Rician channel shows that D-NOMA has better bit error rate performance than HSESA.

Key words: Internet of things, dual non-orthogonal multiple access (D-NOMA), high spectral efficiency secure access (HSESA), spectral efficiency, bit error rate

CLC Number: 

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