Paper Abstract and Keywords |
Presentation |
2022-07-14 13:25
Deep Reinforcement Learning-based IRS-aided Wireless Communication without Channel State Information Hashida Hiroaki, Kawamoto Yuichi, Kato Nei (Tohoku Univ.), Iwabuchi Masashi, Murakami Tomoki (NTT) RCS2022-85 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Intelligent reflecting surfaces (IRSs) have attracted attention as devices that enable radio propagation, which has been originally treated as an uncertain element, to be treated as a variable element in wireless communication systems. In previous studies, optimization methods for IRS reflective coefficients based on channel state information (CSI) have been mainly investigated. However, due to the passive nature of IRS, it is difficult to estimate CSI explicitly. To address this problem, in this paper, we propose a deep reinforcement learning (DRL)-based algorithm that learns the precoding vector of BS and IRS phase shift from the wireless environment. In the algorithm, we develop a beam pattern-based learning framework that indirectly maps the wireless environment to the phase shift to deal with the huge state-action space caused by the large number of elements of BS and IRS. Simulation results reveal that the proposed algorithm is able to learn from the environment and obtain a transmission strategy that improves the transmission rate of the user. Results also verify that the proposed algorithm based on the beam pattern learning framework is more efficient and scalable to the number of IRS elements compared to the method that builds a mapping to the phase shift directly. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Intelligent Reflecting Surface (IRS) / Deep reinforcement learning. / / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 106, RCS2022-85, pp. 84-89, July 2022. |
Paper # |
RCS2022-85 |
Date of Issue |
2022-07-06 (RCS) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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RCS2022-85 |
Conference Information |
Committee |
NS SR RCS SeMI RCC |
Conference Date |
2022-07-13 - 2022-07-15 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
The Kanazawa Theatre + Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Distributed Wireless Network, M2M (Machine-to-Machine),D2D (Device-to-Device),IoT(Internet of Things), etc |
Paper Information |
Registration To |
RCS |
Conference Code |
2022-07-NS-SR-RCS-SeMI-RCC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Deep Reinforcement Learning-based IRS-aided Wireless Communication without Channel State Information |
Sub Title (in English) |
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Intelligent Reflecting Surface (IRS) |
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Deep reinforcement learning. |
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1st Author's Name |
Hashida Hiroaki |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Kawamoto Yuichi |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Kato Nei |
3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
4th Author's Name |
Iwabuchi Masashi |
4th Author's Affiliation |
NTT Corporation (NTT) |
5th Author's Name |
Murakami Tomoki |
5th Author's Affiliation |
NTT Corporation (NTT) |
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Speaker |
Author-1 |
Date Time |
2022-07-14 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2022-85 |
Volume (vol) |
vol.122 |
Number (no) |
no.106 |
Page |
pp.84-89 |
#Pages |
6 |
Date of Issue |
2022-07-06 (RCS) |
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