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| Presentation | 2021-06-25 10:10 A Study on Suppression of Self-noise Propagation in Gaussian BP and GAMP for Correlated MIMO Detection Ryota Tamaki, Kenta Ito, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doushisya Univ.), Seiichi Sanpei (Osaka Univ.)  RCS2021-67 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Generalized approximate message passing (GAMP) is a strong framework to realize low-complexity and high-accuracy multi-user detection (MUD) in large multi-input multi-output (MIMO) systems. However, it is well-known that since the GAMP-based detector separates high-dimensional signals based on matched filters (MFs), the convergence property of iterative detection is severely degraded when the spatial fading correlation between base station (BS) antenna elements is high. To iron out this issue, in MF-based belief propagation (BP) detector, a method to design messages, ...information propagated between iterative processes, has been proposed to mitigate such performance degradation. In this paper, we firstly show that introducing a similar message design method for GAMP-based MUD in highly correlated MIMO channels can dramatically improve the detection capability compared to the other MF-based iterative MUD schemes. Based on the results, we qualitatively describe and analyze why such a dramatic improvement is possible only in the GAMP-based MUD, from the viewpoint of the algorithmic structure; and then, computer simulations demonstrate the validity. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Large MIMO detection / generalized approximate message passing / correlated channels / belief scaling / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 72, RCS2021-67, pp. 220-225, June 2021. | |
| Paper # | RCS2021-67 | |
| Date of Issue | 2021-06-16 (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 | RCS2021-67 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2021-06-23 - 2021-06-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2021-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Suppression of Self-noise Propagation in Gaussian BP and GAMP for Correlated MIMO Detection |
| Sub Title (in English) | |
| Keyword(1) | Large MIMO detection |
| Keyword(2) | generalized approximate message passing |
| Keyword(3) | correlated channels |
| Keyword(4) | belief scaling |
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| 1st Author's Name | Ryota Tamaki |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Kenta Ito |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Takumi Takahashi |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
| 4th Author's Name | Shinsuke Ibi |
| 4th Author's Affiliation | Doshisya Univercity (Doushisya Univ.) |
| 5th Author's Name | Seiichi Sanpei |
| 5th Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-06-25 10:10:00 |
| Presentation Time | 10 minutes |
| Registration for | RCS |
| Paper # | RCS2021-67 |
| Volume (vol) | vol.121 |
| Number (no) | no.72 |
| Page | pp.220-225 |
| #Pages | 6 |
| Date of Issue | 2021-06-16 (RCS) |
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