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| Presentation | 2014-05-15 10:55 CSI Reference Signal Multiplexing Using Carrier Frequency Swapping for FDD High-Order MIMO SDM Mamoru Sawahashi (Tokyo City Univ.), Teruo Kawamura, Yuichi Kakishima (NTT DOCOMO)  RCS2014-20 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes channel state information - reference signal (CSI-RS) multiplexing employing carrier frequency swapping for frequency division duplex (FDD) high-order multiple-input multiple-output (MIMO) spatial division multiplexing (SDM). In the proposed time division duplex (TDD) CSI-RS multiplexing method, carrier frequency of one or a few FFT blocks for multiplexing CSI-RS within a subframe is swapped in between downlink and uplink. By using the proposed TDD CSI-RS multiplexing method, CSI for precoding and link adaptation is estimated in the reverse link by taking advantage of the channel reciprocity feature. By using the proposed TDD CSI-RS multiplexing, RS overhead is decreased according the increase in the simultaneously accessing user equipment (UE) for multiuser MIMO SDM. Moreover, the proposed TDD CSI-RS multiplexing method does not need feedback signals including channel quality indicator (CQI), rank indicator (RI), and precoding matrix indicator (PMI), which leads to the significant decrease in the feedback signal overhead compared to the conventional CSI-RS multiplexing. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MIMO SDM / channel state information measurement / reference signal / feedback signal / channel reciprocity / FDD / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 30, RCS2014-20, pp. 7-12, May 2014. | |
| Paper # | RCS2014-20 | |
| Date of Issue | 2014-05-08 (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 | RCS2014-20 |
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| Conference Information | |
| Committee | IN RCS |
| Conference Date | 2014-05-15 - 2014-05-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Internet, Multi-hop network, Mesh network, Network coding, Cross layer technique, Wireless communication, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2014-05-IN-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | CSI Reference Signal Multiplexing Using Carrier Frequency Swapping for FDD High-Order MIMO SDM |
| Sub Title (in English) | |
| Keyword(1) | MIMO SDM |
| Keyword(2) | channel state information measurement |
| Keyword(3) | reference signal |
| Keyword(4) | feedback signal |
| Keyword(5) | channel reciprocity |
| Keyword(6) | FDD |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Mamoru Sawahashi |
| 1st Author's Affiliation | Tokyo City University (Tokyo City Univ.) |
| 2nd Author's Name | Teruo Kawamura |
| 2nd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 3rd Author's Name | Yuichi Kakishima |
| 3rd Author's Affiliation | NTT DOCOMO, INC., (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2014-05-15 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2014-20 |
| Volume (vol) | vol.114 |
| Number (no) | no.30 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2014-05-08 (RCS) |
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