A UAV-Mounted Free Space Optical Communication: Trajectory Optimization for Flight Time

Ju-Hyung Lee, Kihong Park, Young-Chai Ko, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


In this work, we address the trajectory optimization of a fixed-wing unmanned aerial vehicle (UAV) using free space optical communication (FSOC). Here, we focus on maximizing the flight time of the UAV by considering practical constraints for wireless UAV communication, including limited propulsion energy and required data rates. We find optimized trajectories in various atmospheric environments (e.g., moderate-fog and heavy-fog conditions), while also considering the channel characteristics of FSOC. In addition to maximizing the flight time, we consider the energy efficiency maximization and operation-time minimization problem to find the suboptimal solutions required to meet those constraints. Furthermore, we introduce a low-complexity approach to the proposed framework. In order to address the optimization problem, we conduct a bisection method and sequential programming and introduce a new feasibility check algorithm. Although our design considers suboptimal solutions owing to the nonconvexity of the problems, our simulations indicate that the proposed scheme exhibits a gain of approximately 44.12% in terms of service time when compared to the conventional scheme.
Original languageEnglish (US)
Pages (from-to)1-1
Number of pages1
JournalIEEE Transactions on Wireless Communications
Issue number3
StatePublished - Dec 4 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01


Dive into the research topics of 'A UAV-Mounted Free Space Optical Communication: Trajectory Optimization for Flight Time'. Together they form a unique fingerprint.

Cite this