| Presentation | 2018-02-28 Wireless Physical Layer Security Schemes Using Random Phases for MIMO-OFDM Communications and Its Security Rate Analysis Tsuyoshi Yoneda, Kazuhiko Fukawa, Yuyuan Chang, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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 changesphases of the transmit signals, and controls amplitudes of the transmit signals so that the transmit power canbe 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 degradebit error rates (BERs) of the eavesdropper and can improve the secrecy rate more than the AN and AFF schemes while reducingthe transmit power more drastically. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO-OFDM wireless communications / physical layer security / random phase / security rate / transmit power |
| Paper # | RCS2017-327 |
| Date of Issue | 2018-02-21 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2018/2/28(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Hidekazu Murata(Kyoto Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Tadao Nakagawa(Tottori Univ.) |
| Vice Chair | Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Satoshi Denno(Okayama Univ.) / Makoto Hamaminato(Fujitsu labs.) |
| Secretary | Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda(NICT) / Satoshi Denno(Kyoto Univ.) / Makoto Hamaminato |
| Assistant | Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(NIT, Akashi College) / Kentaro Saito(Tokyo Inst. of Tech.) / Hiromasa Yamauchi(Fujitsu labs.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2018-02-28 |
| Paper # | RCS2017-327 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-456 |
| Page | pp.pp.57-62(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (RCS) |