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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 UAV Relayed Half-Duplex Uplink Cellular Networks with Direct Links and Control and Back-Haul Links

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  • @INPROCEEDINGS{10.1007/978-3-030-93398-2_58,
        author={Tong Zhang and Gang Wang and Yikun Zou},
        title={Multi-user UAV Relayed Half-Duplex Uplink Cellular Networks with Direct Links and Control and Back-Haul Links},
        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={Spectrum efficiency NOMA UAV cellular networks Multi-user},
        doi={10.1007/978-3-030-93398-2_58}
    }
    
  • Tong Zhang
    Gang Wang
    Yikun Zou
    Year: 2022
    Multi-user UAV Relayed Half-Duplex Uplink Cellular Networks with Direct Links and Control and Back-Haul Links
    WISATS
    Springer
    DOI: 10.1007/978-3-030-93398-2_58
Tong Zhang1,*, Gang Wang1, Yikun Zou1
  • 1: Harbin Institute of Technology
*Contact email: 18B905025@stu.hit.edu.cn

Abstract

In this paper, we study a half-duplex multi-user unmanned aerial vehicle (UAV) aided communication system, with constraints of control and back-haul data rates. The UAV is connected to the cellular networks, and because of its line of sight channel, it also works as a relay to receive and transmit the information from the ground users to the base station. The users, categorized in non-orthogonal multiple access (NOMA) groups, have direct links to base stations. In the meantime, to economize spectrum resources, the UAV’s control and back-haul link is also multiplexed with users. In this paper, we design the communication scheme and resource allocation strategy to achieve higher spectrum efficiency. The numerical results show the convergence of the proposed scheme and show that the proposed scheme has better performance than OMA schemes.

Keywords
Spectrum efficiency NOMA UAV cellular networks Multi-user
Published
2022-01-21
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-030-93398-2_58
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