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| Presentation | 2020-06-29 13:25 Distributed intelligent reflecting surfaces utilizing direction information in millimeter-wave communications Masashi Iwabuchi, Tomoki Murakami, Riku Ohmiya, Tomoaki Ogawa, Yasushi Takatori (NTT)  SRW2020-8 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a distributed intelligent reflecting surfaces (IRSs) based on direction information instead of channel state information (CSI) for realizing a practical artificial channel control scheme for millimeter-wave communications. The proposed scheme employs IRSs that comprise a massive number of antenna elements and the reflection characteristic can be adjusted dynamically by individually controlling the phase of each IRS element. The distributed IRSs can compensate coverage and blockage in millimeter-wave communications. However, since the distributed IRSs is composed of multiple IRSs consist of massive elements, it suffers from overhead to collect CSI for controlling phase weight on each IRS element. Thus, we introduce beamforming weighting method based on direction information from IRS to transmitter and receiver points. Since this method is not necessary to collect detailed CSI, the overhead can be reduced. Simulation result shows the distributed IRSs can avoid blockage and achieve approximately 3.5 dB than the single larger IRS. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Millimeter-wave communications / Artificial channel control / Intelligent reflecting surface / Beamforming / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 81, SRW2020-8, pp. 23-28, June 2020. | |
| Paper # | SRW2020-8 | |
| Date of Issue | 2020-06-22 (SRW) | |
| 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) | |
| Download PDF | SRW2020-8 |
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| Conference Information | |
| Committee | SRW |
| Conference Date | 2020-06-29 - 2020-06-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | WLAN， WPAN， Ad-hoc, mmWave, etc. |
| Paper Information | |
| Registration To | SRW |
| Conference Code | 2020-06-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Distributed intelligent reflecting surfaces utilizing direction information in millimeter-wave communications |
| Sub Title (in English) | |
| Keyword(1) | Millimeter-wave communications |
| Keyword(2) | Artificial channel control |
| Keyword(3) | Intelligent reflecting surface |
| Keyword(4) | Beamforming |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masashi Iwabuchi |
| 1st Author's Affiliation | NTT (NTT) |
| 2nd Author's Name | Tomoki Murakami |
| 2nd Author's Affiliation | NTT (NTT) |
| 3rd Author's Name | Riku Ohmiya |
| 3rd Author's Affiliation | NTT (NTT) |
| 4th Author's Name | Tomoaki Ogawa |
| 4th Author's Affiliation | NTT (NTT) |
| 5th Author's Name | Yasushi Takatori |
| 5th Author's Affiliation | NTT (NTT) |
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| Speaker | Author-1 |
| Date Time | 2020-06-29 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | SRW |
| Paper # | SRW2020-8 |
| Volume (vol) | vol.120 |
| Number (no) | no.81 |
| Page | pp.23-28 |
| #Pages | 6 |
| Date of Issue | 2020-06-22 (SRW) |
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