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| Presentation | 2015-11-05 11:20 Open-Loop Correlation Reduction Precoding in Overloaded MIMO-OFDM Systems Hikari Matsuoka, Yoshihito Doi, Tatsuro Yabe, Yukitoshi Sanada (Keio Univ.)  RCS2015-212 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This report proposes an open-loop correlation reduction precoding scheme for overloaded multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems. In overloaded MIMO-OFDM systems, frequency diversity through joint maximum likelihood (ML) decoding suppresses performance degradation owing to spatial signal multiplexing. However, on a line-of-sight (LOS) channel, a channel matrix may have a large correlation between coded symbols transmitted on separate subcarriers. The correlation reduces the frequency diversity gain and deteriorates the signal separation capability. Thus, in the proposed scheme, open-loop precoding is employed at the transmitter of an overloaded MIMO system in order to reduce the correlation between codewords transmitted on different signal streams. The proposed precoding scheme changes the amplitude as well as the phase of the coded symbols transmitted on different subcarriers. Numerical results obtained through computer simulation show that the proposed scheme improves the bit error rate performance on Rician channels. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Open-Loop Precoding / Overloaded MIMO / Line-of-Sight Propagation / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 288, RCS2015-212, pp. 133-138, Nov. 2015. | |
| Paper # | RCS2015-212 | |
| Date of Issue | 2015-10-28 (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 | RCS2015-212 |
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| Conference Information | |
| Committee | AP RCS WPT SAT |
| Conference Date | 2015-11-04 - 2015-11-06 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Prefectural Museum & Art Museum |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antenna and Propagation, Radio Communication, Satelite Communication, Wireless Power Transfer |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2015-11-AP-RCS-WPT-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Open-Loop Correlation Reduction Precoding in Overloaded MIMO-OFDM Systems |
| Sub Title (in English) | |
| Keyword(1) | Open-Loop Precoding |
| Keyword(2) | Overloaded MIMO |
| Keyword(3) | Line-of-Sight Propagation |
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| 1st Author's Name | Hikari Matsuoka |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Yoshihito Doi |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
| 3rd Author's Name | Tatsuro Yabe |
| 3rd Author's Affiliation | Keio University (Keio Univ.) |
| 4th Author's Name | Yukitoshi Sanada |
| 4th Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2015-11-05 11:20:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2015-212 |
| Volume (vol) | vol.115 |
| Number (no) | no.288 |
| Page | pp.133-138 |
| #Pages | 6 |
| Date of Issue | 2015-10-28 (RCS) |
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