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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (16): 329854-329854.doi: 10.7527/S1000-6893.2023.29854

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Multi-UAV relay connectivity optimization with constraint of hover time

Wu PAN1, Xiang WANG2, Na LYU2(), Zhiyuan REN3, Wenya LIU4   

  1. 1.Graduate School,Air Force Engineering University,Xi’an  710038,China
    2.Information and Navigation School,Air Force Engineering University,Xi’an  710077,China
    3.State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an  710071,China
    4.Unit 31576 of the PLA,Beijing  100144,China
  • Received:2023-11-08 Revised:2023-12-08 Accepted:2023-12-22 Online:2024-08-25 Published:2023-12-29
  • Contact: Na LYU E-mail:lvnn2007@163.com
  • Supported by:
    Key Research and Development Plan of Shaanxi Province(2022ZDLGY05-09)

Abstract:

Due to their special advantages of flexibility and ease of deployment, Unmanned Aerial Vehicles have found extensive uses in a variety of fields. To solve the problem of communication connectivity between heterogeneous users, the concept of heterogeneous multi-network relay is proposed by combining relay and gateway ideas. Multiple UAVs are deployed to provide relay services for heterogeneous users, and reliable relay connectivity links are constructed. The process of establishing a relay connectivity link between the source and destination user nodes is decomposed into two sub-problems for solving: relay coverage partitioning and relay selection connection. First, considering the constraint of the maximum hover time of the UAV, an Optimization Partitioning Method (OPM) is proposed based on a fair resource allocation scheme by looking for the optimal unit partition associated with the UAV to maximize the data volume of service users. Second, a Relay Selection Strategy (RSS) is created when building the connection link between UAVs with the aim of optimizing relay link throughput. Relay UAVs are chosen to act as a conduit for communication amongst UAVs that are scattered outside the communication radius. Finally, experimental comparison shows that the proposed strategy can increase the throughput of relay links and offer fairer relay services for heterogeneous users.

Key words: heterogeneous user, unmanned aerial vehicle, relay communication, hover time, fair distribution, throughput

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