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| Presentation | 2015-06-25 10:13 Iterative Time-Domain Compression Method of MIMO Channel State Information Tomohiro Nabeshima, Kenichi Higuchi (Tokyo Univ. of Science)  RCS2015-66 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we propose an iterative time-domain compression method multiple-input multiple-output (MIMO) channel state information (CSI). An efficient MIMO-CSI compression is essential for reducing the feedback overhead of MIMO-CSI from the user terminal receiver to the base station transmitter for beamforming (precoding), especially when the number of antennas is large. The proposed method is based on the time-domain CSI compression method with frequency-domain CSI bundling and interpolation for all combinations of transmitter and receiver antennas in the literature. In this method, how much the CSI compression is achieved or how accurate the compressed CSI is dominantly dependent on the the interpolation between CSI of different antenna sets. While the previous works assume simple linear or spline interpolation, the proposed method iteratively updates the interpolation vector so that the CSI error due to compression is minimized. The numerical results show that the proposed method can improve the accuracy of the compressed CSI or enhance the CSI compression ratio compared to the conventional method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MIMO / beamforming / precoding / channel state information / CSI / compression / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 113, RCS2015-66, pp. 119-124, June 2015. | |
| Paper # | RCS2015-66 | |
| Date of Issue | 2015-06-17 (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 | RCS2015-66 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2015-06-24 - 2015-06-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2015-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Iterative Time-Domain Compression Method of MIMO Channel State Information |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | beamforming |
| Keyword(3) | precoding |
| Keyword(4) | channel state information |
| Keyword(5) | CSI |
| Keyword(6) | compression |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomohiro Nabeshima |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Kenichi Higuchi |
| 2nd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
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| Speaker | Author-1 |
| Date Time | 2015-06-25 10:13:00 |
| Presentation Time | 8 minutes |
| Registration for | RCS |
| Paper # | RCS2015-66 |
| Volume (vol) | vol.115 |
| Number (no) | no.113 |
| Page | pp.119-124 |
| #Pages | 6 |
| Date of Issue | 2015-06-17 (RCS) |
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