Research Article
Multi-user UAV Relayed Half-Duplex Uplink Cellular Networks with Direct Links and Control and Back-Haul Links
@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
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.
