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| Presentation | 2018-02-28 09:40 Wireless Physical Layer Security Schemes Using Random Phases for MIMO-OFDM Communications and Its Security Rate Analysis Tsuyoshi Yoneda, Kazuhiko Fukawa, Yuyuan Chang (Tokyo Tech)  RCS2017-327 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | As conventional physical layer security schemes for multiple-input single-output (MISO) wireless communications, the artificial noise (AN) and artificial fast fading (AFF) schemes assume that channel state information (CSI) is known to transmitters. To prevent eavesdroppers from receiving desired signals that legitimate users should correctly receive, the AN scheme transmits AN in addition to the desired signals while the AFF scheme does not consider transmit power levels and multiplies transmit signals by random weights. The AN and random weights can deteriorate transmission performance of the eavesdroppers. However, the AN and AFF schemes have a major drawback that they require a large amount of transmit power. To cope with such a problem, the proposed scheme called the random phase (RP) avoids transmitting AN. Instead of AN, RP randomly changes phases of the transmit signals, and controls amplitudes of the transmit signals so that the transmit power can be minimized under the constraint that the legitimate user should correctly receive the desired signals. This report extends RP from MISO to multiple-input multiple-output (MIMO) communications, and analyzes security rates of the conventional and proposed schemes on the assumption that the eavesdropper performs blind estimation of the equivalent channel frequency response matrix. Then, we conduct computer simulations of MIMO-OFDM under multipath fading conditions with OFDM subcarrier modulation being 16QAM. It is demonstrated that the proposed scheme can degrade bit error rates (BERs) of the eavesdropper and can improve the secrecy rate more than the AN and AFF schemes while reducing the transmit power more drastically. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MIMO-OFDM wireless communications / physical layer security / random phase / security rate / transmit power / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 456, RCS2017-327, pp. 57-62, Feb. 2018. | |
| Paper # | RCS2017-327 | |
| Date of Issue | 2018-02-21 (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 | RCS2017-327 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2018-02-28 - 2018-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2018-02-RCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wireless Physical Layer Security Schemes Using Random Phases for MIMO-OFDM Communications and Its Security Rate Analysis |
| Sub Title (in English) | |
| Keyword(1) | MIMO-OFDM wireless communications |
| Keyword(2) | physical layer security |
| Keyword(3) | random phase |
| Keyword(4) | security rate |
| Keyword(5) | transmit power |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tsuyoshi Yoneda |
| 1st Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
| 2nd Author's Name | Kazuhiko Fukawa |
| 2nd Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
| 3rd Author's Name | Yuyuan Chang |
| 3rd Author's Affiliation | Tokyo Institute of Technology (Tokyo Tech) |
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| Speaker | Author-1 |
| Date Time | 2018-02-28 09:40:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2017-327 |
| Volume (vol) | vol.117 |
| Number (no) | no.456 |
| Page | pp.57-62 |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (RCS) |
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