UAV-aided two-way mobile relaying systems

Subin Eom, Hoon Lee, Junhee Park, Inkyu Lee

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

This letter investigates a two-way mobile relaying strategy where a relay mounted on a unmanned aerial vehicle (UAV) helps bidirectional communication of a pair of ground nodes (GNs). In order to deal with the minimum average rate maximization problem between two GNs, UAV trajectory, transmit power, and bandwidth are jointly optimized by fully utilizing the mobility of UAV and communication resources. To solve this problem, we apply a successive convex approximation technique for non-convex constraints by introducing new surrogate functions. Since all variables are jointly updated at the same iteration, we can yield a Karush-Kuhn-Tucker (KKT) point at the convergence point from the proposed algorithm. The effectiveness of the proposed algorithm is demonstrated in numerical results.

Original languageEnglish
Article number8896023
Pages (from-to)438-442
Number of pages5
JournalIEEE Communications Letters
Volume24
Issue number2
DOIs
Publication statusPublished - 2020 Feb

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation through the Ministry of Science, ICT, and Future Planning (MSIP), Korean Government under Grant 2017R1A2B3012316.

Funding Information:
Manuscript received September 11, 2019; revised October 18, 2019; accepted November 5, 2019. Date of publication November 11, 2019; date of current version February 11, 2020. This work was supported by the National Research Foundation through the Ministry of Science, ICT, and Future Planning (MSIP), Korean Government under Grant 2017R1A2B3012316. The associate editor coordinating the review of this letter and approving it for publication was H. Tabassum. (Corresponding author: Inkyu Lee.) S. Eom, J. Park, and I. Lee are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: esb777@korea.ac.kr; pjh0585@korea.ac.kr; inkyu@korea.ac.kr).

Publisher Copyright:
© 1997-2012 IEEE.

Keywords

  • UAV communication
  • throughput maximization
  • trajectory optimization
  • two-way relay

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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