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| Presentation | 2020-07-08 13:25 Optimization of repeater combinations using integer programming Riku Ohmiya, Tomoki Murakami, Masashi Iwabuchi, Masaaki Nishino, Tomoaki Ogawa, Yasushi Takatori (NTT)  RCS2020-63 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In recent years, a new type repeater called IRS (Intelligent Reflecting Surface) that can reconfigure the propagation path by controlling the reflection direction and amplitude of the incident electromagnetic wave has been studied. So far, we have proposed a technique that can actively suppress inter-cell interference power by using multiple IRS repeaters in combination. However, the computational complexity for the optimum combination of repeaters increases exponentially as the number of repeaters increases. Therefore, in this paper, we formulated the combination of repeaters as a 0-1 integer programming problem, and used a general-purpose solver to find a combination that maximizes the transmission capacity to the desired wireless station while suppressing the inter-cell interference amount below a certain value. In addition, we proposed a method for clustering by selecting repeaters with similar characteristics and using only their representative values as combination search candidates in order to significantly reduce the computational complexity. As a result of evaluation by computer simulation, the proposed method was more effective in improving the capacity when the number of clusters is smaller than the conventional method, and especially the worst value was improved. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IRS(Intelligent Reflecting Surface) / Passive repeater / 0-1 0-1 integer programming problem / Clustering algorithm / Calculation reduction / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 89, RCS2020-63, pp. 31-36, July 2020. | |
| Paper # | RCS2020-63 | |
| Date of Issue | 2020-07-01 (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) | |
| Download PDF | RCS2020-63 |
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| Conference Information | |
| Committee | SR NS SeMI RCC RCS |
| Conference Date | 2020-07-08 - 2020-07-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Communication and Network Technology of the AI Age, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2020-07-SR-NS-SeMI-RCC-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimization of repeater combinations using integer programming |
| Sub Title (in English) | |
| Keyword(1) | IRS(Intelligent Reflecting Surface) |
| Keyword(2) | Passive repeater |
| Keyword(3) | 0-1 0-1 integer programming problem |
| Keyword(4) | Clustering algorithm |
| Keyword(5) | Calculation reduction |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Riku Ohmiya |
| 1st Author's Affiliation | NTT (NTT) |
| 2nd Author's Name | Tomoki Murakami |
| 2nd Author's Affiliation | NTT (NTT) |
| 3rd Author's Name | Masashi Iwabuchi |
| 3rd Author's Affiliation | NTT (NTT) |
| 4th Author's Name | Masaaki Nishino |
| 4th Author's Affiliation | NTT (NTT) |
| 5th Author's Name | Tomoaki Ogawa |
| 5th Author's Affiliation | NTT (NTT) |
| 6th Author's Name | Yasushi Takatori |
| 6th Author's Affiliation | NTT (NTT) |
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| Speaker | Author-1 |
| Date Time | 2020-07-08 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2020-63 |
| Volume (vol) | vol.120 |
| Number (no) | no.89 |
| Page | pp.31-36 |
| #Pages | 6 |
| Date of Issue | 2020-07-01 (RCS) |
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