Trajectory Planning for Multiple UAVs in UAV-aided Wireless Relay Network

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5 Citations (Scopus)


The integration of Unmanned Aerial Vehicle (UAV) as flying base station (FBS) assisted wireless communications has recently attracted significant attention. However, there is a need for efficient optimization trajectory techniques to allow for continuous service connectivity for FBSs operating at regions beyond single-hop backhauling to their depot (i.e., fixed macro base station). This work proposes an optimization trajectory planning framework to provide continuous service delivery of FBSs by utilizing aerial relay nodes which can also serve ground users (GUs). The proposed joint optimization framework of FBSs trajectories where a subset of them acts as relay nodes called relay-FBS (rFBS) provides tangible gains compared to previously proposed nominal techniques. More specifically, a wide set of numerical investigations reveals that the proposed framework reduces aggregate travel time (ATT) more than 14% for the entire fleet of FBSs, whilst for rFBS to enable continuous service support, this average gain is more than 38%.

Original languageEnglish
Title of host publicationICC 2022 - IEEE International Conference on Communications
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781538683477
Publication statusPublished - 11 Aug 2022
Event2022 IEEE International Conference on Communications, ICC 2022 - Seoul, Korea, Republic of
Duration: 16 May 202220 May 2022

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607


Conference2022 IEEE International Conference on Communications, ICC 2022
Country/TerritoryKorea, Republic of


  • B5G
  • Flying Base Station (FBS)
  • Mixed Integer Linear Programming (MILP)
  • Path Planning
  • UAV Relay network
  • Unmanned Aerial Vehicle (UAV)
  • Wireless Networks


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