Outage Performance of Multitier UAV Communication With Random Beam Misalignment

Weihao Wang, Zesong Fei, Jing Guo*, Salman Durrani, Halim Yanikomeroglu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

By exploiting the degree of freedom on the altitude, unmanned aerial vehicle (UAV) communication can provide ubiquitous communication for future wireless networks. In the case of concurrent transmission of multiple UAVs, the directional beamforming formed by multiple antennas is an effective way to reduce co-channel interference. However, factors, such as airflow disturbance or estimation error for UAV communications, can cause the occurrence of beam misalignment. In this article, we investigate the system performance of a multitier UAV communication network with the consideration of unstable beam alignment. In particular, we propose a tractable random model to capture the impacts of beam misalignment in the 3-D space. Based on this, by utilizing stochastic geometry, an analytical framework for obtaining the outage probability in the downlink of a multitier UAV communication network for the closest distance association scheme and the maximum average power association scheme is established. The accuracy of the analysis is verified by Monte Carlo simulations. The results indicate that in the presence of random beam misalignment, the optimal number of UAV antennas needs to be adjusted to be relatively larger when the density of UAVs increases or the altitude of UAVs becomes higher.

Original languageEnglish
Pages (from-to)4163-4178
Number of pages16
JournalIEEE Internet of Things Journal
Volume11
Issue number3
DOIs
Publication statusPublished - 1 Feb 2024

Keywords

  • Beam misalignment
  • beamforming
  • outage performance
  • stochastic geometry
  • unmanned aerial vehicle (UAV) communication

Fingerprint

Dive into the research topics of 'Outage Performance of Multitier UAV Communication With Random Beam Misalignment'. Together they form a unique fingerprint.

Cite this

Wang, W., Fei, Z., Guo, J., Durrani, S., & Yanikomeroglu, H. (2024). Outage Performance of Multitier UAV Communication With Random Beam Misalignment. IEEE Internet of Things Journal, 11(3), 4163-4178. https://doi.org/10.1109/JIOT.2023.3299279