In this paper, the physical layer security of uplink non-orthogonal multiple access transmission in cellular Internet of Things is analyzed. Using the stochastic geometry model where the location of users and eavesdroppers are respectively modeled by poisson cluster process and poisson point process, reliable performance and secrecy performance are analyzed in terms of coverage probability and secrecy outage probability, taking both intra-cell interference and inter-cell interference into consideration. Moreover, average effective secrecy throughput is analyzed which comprehensively characterize the network reliable performance and secrecy performance. The analytical and simulation results show that increasing intensity of base station bring an opposite effect to reliable performance and secrecy performance, thus there exist an optimal intensity of base station that maximizes the average effective secrecy throughput. In addition, our analysis allows an optimum selection of the system parameters like the intensity of base station and wyner's code rates.


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    Title :

    Analysis of Uplink NOMA in Cellular IoT: A Physical Layer Security Perspective


    Contributors:
    Zhang, Shuai (author) / Xu, Xiaoming (author) / Peng, Jianhua (author) / Chen, Yajun (author) / Wang, Shaoyu (author)


    Publication date :

    2018-08-01


    Size :

    183498 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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