RF Lens Antenna Array-Based One-Shot Coarse Pointing for Hybrid RF/FSO Communications

Hyung Joo Moon, Hong Bae Jeon, Chan Byoung Chae

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Because of its high directivity, free-space optical (FSO) communication offers a number of advantages. It can, however, give rise to major system difficulties concerning alignment between two terminals. During the link-acquisition step (a.k.a. coarse pointing), a ground station can be prevented from acquiring optical links due to pointing errors and insufficient information about unmanned aerial vehicle locations. We propose, in this letter, a radio-frequency (RF) lens antenna array to increase the performance of coarse pointing in hybrid RF/FSO communications. The proposed algorithm using a novel closed-form angle estimator, compared to conventional methods, reduces the minimum outage probability by over a thousand times.

Original languageEnglish
Pages (from-to)240-244
Number of pages5
JournalIEEE Wireless Communications Letters
Issue number2
Publication statusPublished - 2022 Feb 1

Bibliographical note

Publisher Copyright:
© 2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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