| Presentation | 2023-01-24 A Study on Bit Error Rate Improvement of Chaos Modulation By Bit Assignment Using Nonlinear Optimization Algorithm Ryo Tozawa, Keisuke Asano, Takumi Abe, Kenta Kato, Eiji Okamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, the number of Internet of things (IoT) devices has increased and they are used in industrial and medical applications. In these applications, personal information and device control information are exchanged via wireless communication, making the improvement of confidentiality a challenge. As a solution to this problem, we proposed a chaos modulation with physical layer confidentiality. Chaos modulation is a type of symmetric key encryption, in which a shared key is incorporated into the modulation, so that only the receiver with the correct symmetric key can decrypt the data, thus providing physical layer confidentiality. Furthermore, chaos modulation can obtain channel coding gain in addition to physical layer confidentiality, because it generates a Gaussian-distributed chaotic signal by convolving the information bits. However, due to its cryptographic nature, chaotic modulation has the problem that the coding gain is limited because there is no correlation between the Hamming distance of the information bits and the Euclidean distance of the signal points. To solve this problem, in this paper, we propose an appropriate mapping method of chaos modulation assigning proper bits to each signal point using the simulated annealing method, which is a kind of nonlinear optimization algorithm. We show that the proposed method can achieve 1 dB channel coding gain at a point with a bit error rate of 10^(-4) for a data length of 4, compared to the existing chaotic modulation method. We also compare the proposed method with other nonlinear optimization algorithms, such as bit assignment using genetic algorithms, and show that the simulated annealing method is effective. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | physical layer security / chaos modulation / optimization algorithm / simulated annealing / genetic algorithm |
| Paper # | IT2022-30,SIP2022-81,RCS2022-209 |
| Date of Issue | 2023-01-17 (IT, SIP, RCS) |
| Conference Information | |
| Committee | IT / RCS / SIP |
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| Conference Date | 2023/1/24(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Maebashi Terrsa |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tetsuya Kojima(Tokyo Kosen) / Kenichi Higuchi(Tokyo Univ. of Science) / Toshihisa Tanaka(Tokyo Univ. Agri.&Tech.) |
| Vice Chair | Yasuyuki Nogami(Okayama Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Koichi Ichige(Yokohama National Univ.) / Takayuki Nakachi(Ryukyu Univ.) |
| Secretary | Yasuyuki Nogami(Saitamai Univ.) / Tomoya Tandai(Nagaoka Univ. of Tech.) / Fumihide Kojima(Panasonic) / Osamu Muta(Univ. of Electro-Comm) / Koichi Ichige(Sharp) / Takayuki Nakachi(Tokyo Univ. Agri.&Tech.) |
| Assistant | Takayuki Nozaki(Yamaguchi Univ.) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Taichi Yoshida(UEC) / Shoko Imaizumi(Chiba Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Information Theory / Technical Committee on Radio Communication Systems / Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Bit Error Rate Improvement of Chaos Modulation By Bit Assignment Using Nonlinear Optimization Algorithm |
| Sub Title (in English) | |
| Keyword(1) | physical layer security |
| Keyword(2) | chaos modulation |
| Keyword(3) | optimization algorithm |
| Keyword(4) | simulated annealing |
| Keyword(5) | genetic algorithm |
| 1st Author's Name | Ryo Tozawa |
| 1st Author's Affiliation | Nagoya Institute of Technology(NIT) |
| 2nd Author's Name | Keisuke Asano |
| 2nd Author's Affiliation | Nagoya Institute of Technology(NIT) |
| 3rd Author's Name | Takumi Abe |
| 3rd Author's Affiliation | Nagoya Institute of Technology(NIT) |
| 4th Author's Name | Kenta Kato |
| 4th Author's Affiliation | Nagoya Institute of Technology(NIT) |
| 5th Author's Name | Eiji Okamoto |
| 5th Author's Affiliation | Nagoya Institute of Technology(NIT) |
| Date | 2023-01-24 |
| Paper # | IT2022-30,SIP2022-81,RCS2022-209 |
| Volume (vol) | vol.122 |
| Number (no) | IT-355,SIP-356,RCS-357 |
| Page | pp.pp.7-12(IT), pp.7-12(SIP), pp.7-12(RCS), |
| #Pages | 6 |
| Date of Issue | 2023-01-17 (IT, SIP, RCS) |