| Presentation | 2022-03-02 Random-Phase based Physical-Layer Security Scheme Robust against Time-Variant MIMO Channels Yurika Matsumoto, Yuyuan Chang, Kazuhiko Fukawa, |
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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 wireless communications, artificial noise (AN) and artificial fast fading (AFF) suffer from significant increase in the transmit power. To drastically reduce the amount of the transmit power, the random phase (RP) has been proposed. RP randomly sets the phase of each transmitted signal, and controls the amplitude using channel state information (CSI), so that it can minimize the transmit power under the constraint that the legitimate receiver should correctly receive the desired signal. Due to the channel reciprocity of the time division duplex (TDD), the RP transmitter can estimate the CSI of the downlink, which should be equal to that of the uplink. When the channel is time variant, however, a large difference between the estimated and true values of CSI at the transmission timing can deteriorate the transmission performance of the legitimate receiver. To alleviate the degradation, this report firstly introduces channel prediction schemes into the RP transmitter. Furthermore, RP is extended from MISO (Multiple-Input Single-Output) to MIMO (Multiple-Input Multiple-Output), whereas both compensation techniques for the channel prediction error and receive diversity combining are employed by the legitimate receiver. Computer simulations demonstrate that the channel prediction by the transmitter and the compensation for the channel prediction error on the receiver side can improve the average block error rate (BLER) performance more significantly than the conventional RP. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / physical layer security scheme / random phase / channel prediction / iterative reception processing |
| Paper # | RCS2021-252 |
| Date of Issue | 2022-02-23 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2022/3/2(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Suguru Kameda(Hiroshima Univ.) / Hanako Noda(Anritsu) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(Mie Univ.) / Osamu Takyu(Tokai Univ.) / Kentaro Ishidu(NTT) / Kazuto Yano(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hirokazu Sawada |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Akihito Noda(Nanzan Univ.) |
| 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) | Random-Phase based Physical-Layer Security Scheme Robust against Time-Variant MIMO Channels |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | physical layer security scheme |
| Keyword(3) | random phase |
| Keyword(4) | channel prediction |
| Keyword(5) | iterative reception processing |
| 1st Author's Name | Yurika Matsumoto |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 2nd Author's Name | Yuyuan Chang |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 3rd Author's Name | Kazuhiko Fukawa |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| Date | 2022-03-02 |
| Paper # | RCS2021-252 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-391 |
| Page | pp.pp.7-12(RCS), |
| #Pages | 6 |
| Date of Issue | 2022-02-23 (RCS) |