10th EAI International Conference on Mobile Multimedia Communications

Research Article

Coexistence Study between NB-IoT and cdma2000 Systems

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  • @INPROCEEDINGS{10.4108/eai.13-7-2017.2270153,
        author={Chunhua Liu and Xingyu Chen and Yong Li and Mugen Peng},
        title={Coexistence Study between NB-IoT and cdma2000 Systems},
        proceedings={10th EAI International Conference on Mobile Multimedia Communications},
        keywords={coexistence interference nb-iot cdma2000},
  • Chunhua Liu
    Xingyu Chen
    Yong Li
    Mugen Peng
    Year: 2017
    Coexistence Study between NB-IoT and cdma2000 Systems
    DOI: 10.4108/eai.13-7-2017.2270153
Chunhua Liu1,*, Xingyu Chen2, Yong Li1, Mugen Peng1
  • 1: Beijing University of Posts and Telecommunications
  • 2: Nankai University
*Contact email: liuchunhua95@126.com


Narrowband Internet of things (NB-IoT) is a new communication system standard for future applications of Internet of things, which is expected to operate over 850MHz band. However, the existing cdma2000 system is also operating over adjacent band, so the coexistence study between the two systems has significant value. In this paper, the uplink and downlink performance simulation of coexistence between NB-IoT in stand-alone mode and cdma2000 system is studied, including both coordinated and uncoordinated deployment scenarios. To capture the dynamic distribution of users, Monte Carlo method is used. The simulation results show that the interference between the two systems is not quite severe in coordinated case. In addition, some deployment suggestions are proposed to achieve better coexistence between the two systems.