Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning

Abstract Intelligent reflective surface (IRS) provides an effective solution for reconfiguring air‐to‐ground wireless channels, and intelligent agents based on reinforcement learning can dynamically adjust the reflection coefficient of IRS to adapt to changing channels. However, most exiting IRS con...

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Main Authors: Yifan Du, Nan Qi, Kewei Wang, Ming Xiao, Wenjing Wang
Format: Article
Language:English
Published: Wiley 2024-02-01
Series:IET Communications
Subjects:
Online Access:https://doi.org/10.1049/cmu2.12718
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author Yifan Du
Nan Qi
Kewei Wang
Ming Xiao
Wenjing Wang
author_facet Yifan Du
Nan Qi
Kewei Wang
Ming Xiao
Wenjing Wang
author_sort Yifan Du
collection DOAJ
description Abstract Intelligent reflective surface (IRS) provides an effective solution for reconfiguring air‐to‐ground wireless channels, and intelligent agents based on reinforcement learning can dynamically adjust the reflection coefficient of IRS to adapt to changing channels. However, most exiting IRS configuration schemes based on reinforcement learning require long training time and are difficult to be industrially deployed. This paper, proposes a model‐free IRS control scheme based on reinforcement learning and adopts transfer learning to accelerate the training process. A knowledge base of the source tasks has been constructed for transfer learning, allowing accumulation of experience from different source tasks. To mitigate potential negative effects of transfer learning, quantitative analysis of task similarity through unmanned aerial vehicle (UAV) flight path is conducted. After identifying the most similar source task to the target task, parameters of the source task model are used as the initial values for the target task model to accelerate the convergence process of reinforcement learning. Simulation results demonstrate that the proposed method can increase the convergence speed of the traditional DDQN algorithm by up to 60%.
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spelling doaj.art-6f9fff38dfcc4c1cad2674f0528da4302024-02-14T06:55:54ZengWileyIET Communications1751-86281751-86362024-02-0118321422410.1049/cmu2.12718Intelligent reflecting surface‐assisted UAV inspection system based on transfer learningYifan Du0Nan Qi1Kewei Wang2Ming Xiao3Wenjing Wang4Department of Electrical Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaDepartment of Electrical Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaDepartment of Electrical Engineering Nanjing University of Aeronautics and Astronautics Nanjing ChinaSchool of Electrical Engineering of KTH Royal Institute of Technology Stockholm SwedenSchool of Communication and Information Engineering Xi'an University of Posts and Telecommunications Xi'an ChinaAbstract Intelligent reflective surface (IRS) provides an effective solution for reconfiguring air‐to‐ground wireless channels, and intelligent agents based on reinforcement learning can dynamically adjust the reflection coefficient of IRS to adapt to changing channels. However, most exiting IRS configuration schemes based on reinforcement learning require long training time and are difficult to be industrially deployed. This paper, proposes a model‐free IRS control scheme based on reinforcement learning and adopts transfer learning to accelerate the training process. A knowledge base of the source tasks has been constructed for transfer learning, allowing accumulation of experience from different source tasks. To mitigate potential negative effects of transfer learning, quantitative analysis of task similarity through unmanned aerial vehicle (UAV) flight path is conducted. After identifying the most similar source task to the target task, parameters of the source task model are used as the initial values for the target task model to accelerate the convergence process of reinforcement learning. Simulation results demonstrate that the proposed method can increase the convergence speed of the traditional DDQN algorithm by up to 60%.https://doi.org/10.1049/cmu2.127186Glearning (artificial intelligence)
spellingShingle Yifan Du
Nan Qi
Kewei Wang
Ming Xiao
Wenjing Wang
Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning
IET Communications
6G
learning (artificial intelligence)
title Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning
title_full Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning
title_fullStr Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning
title_full_unstemmed Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning
title_short Intelligent reflecting surface‐assisted UAV inspection system based on transfer learning
title_sort intelligent reflecting surface assisted uav inspection system based on transfer learning
topic 6G
learning (artificial intelligence)
url https://doi.org/10.1049/cmu2.12718
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AT nanqi intelligentreflectingsurfaceassisteduavinspectionsystembasedontransferlearning
AT keweiwang intelligentreflectingsurfaceassisteduavinspectionsystembasedontransferlearning
AT mingxiao intelligentreflectingsurfaceassisteduavinspectionsystembasedontransferlearning
AT wenjingwang intelligentreflectingsurfaceassisteduavinspectionsystembasedontransferlearning