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| Presentation | 2016-04-22 11:00 A Study on Low-Complexity Belief Propagation Detection Using Sorted-QR Decomposition for Large MIMO Systems Shogo Tanabe, Koji Ishibashi (The Univ. Electro-Commun.)  RCS2016-15 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we propose a low-complexity signal detection for large multi-input multi-output (MIMO) systems with around ten transmit/receive antennas. Specifically, we first propose sorted QR-decomposed Gaussian belief propagation (Sorted QR-GA-BP) and show that the performance of Sorted QR-GA-BP is close to that of conventional belief propagation (BP) detection while its complexity is almost same as conventional Gaussian belief propagation (GA-BP) detection. Furthermore, we propose a novel subgraph decomposition of the factor graph defined by QR decomposed channel matrix and further propose QR-decomposed subgraph belief propagation (QR-SG-BP) detection. Computer simulations reveal that proposed QR-SG-BP achieves the superior performance close to maximum likelihood detection (MLD) while its complexity is lower than conventional BP. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Large MIMO system / Gaussian belief propagation / Sorted QR decomposition / Subgraph decomposition / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 11, RCS2016-15, pp. 83-88, April 2016. | |
| Paper # | RCS2016-15 | |
| Date of Issue | 2016-04-14 (RCS) | |
| ISSN | Print edition: ISSN 0913-5685 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 | RCS2016-15 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2016-04-21 - 2016-04-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Romantopia, A Landscape of Forest and Stars, Hirosaki City |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio Access Technologies, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2016-04-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Low-Complexity Belief Propagation Detection Using Sorted-QR Decomposition for Large MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | Large MIMO system |
| Keyword(2) | Gaussian belief propagation |
| Keyword(3) | Sorted QR decomposition |
| Keyword(4) | Subgraph decomposition |
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| Keyword(8) | |
| 1st Author's Name | Shogo Tanabe |
| 1st Author's Affiliation | The University of Electro-Communications (The Univ. Electro-Commun.) |
| 2nd Author's Name | Koji Ishibashi |
| 2nd Author's Affiliation | The University of Electro-Communications (The Univ. Electro-Commun.) |
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| Speaker | Author-1 |
| Date Time | 2016-04-22 11:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2016-15 |
| Volume (vol) | vol.116 |
| Number (no) | no.11 |
| Page | pp.83-88 |
| #Pages | 6 |
| Date of Issue | 2016-04-14 (RCS) |
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