| Presentation | 2022-01-14 Study of the Amount of Mutual Information of Secure Polarization Multiplexed M-QAM Signal with Symbol Placement Retention Masking Method Keiji Shimada, Mizuki Inagaki, Takahiro Kodama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, optical communication transceivers have been required to have high confidentiality for data. A shared key cryptosystem at the physical layer has been introduced in digital signal processing. We proposed a symbol arrangement retention masking M-QAM method that changes regularly according to the encryption key bit while retaining the symbol arrangement containing data. In this time, we applied the symbol arrangement retention masking method to the polarization multiplex M-QAM signal. We evaluated the bit error rate (BER) characteristics by hard decision using threshold processing. In addition, assuming a case where an eavesdropper attempts soft-judgment decryption using likelihood, the amount of information is evaluated by mutual information (GMI: Generalized Mutual Information) as an evaluation index of security strength. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical coherent communication / digital signal processing / quadrature amplitude modulation / common key cryptography |
| Paper # | OCS2021-36 |
| Date of Issue | 2022-01-06 (OCS) |
| Conference Information | |
| Committee | OCS / CS |
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| Conference Date | 2022/1/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Conference room 204A・B at KDDI Ishin-hall |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Core and metro system, Submarine telecommunications system, Optical access system and next generation PON, Ethernet, Optical Transport Network (OTN), Transmission monitoring and control, Design and tool for optical transmission system, Co-operation between optical and mobile, etc. |
| Chair | Takeshi Hoshida(Fujitsu) / Jun Terada(NTT) |
| Vice Chair | / Daisuke Umehara(Kyoto Inst. of Tech.) |
| Secretary | (NTT) / Daisuke Umehara(Fujikura) |
| Assistant | / Takahiro Yamaura(Toshiba) / Yuta Ida(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Optical Communication Systems / Technical Committee on Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of the Amount of Mutual Information of Secure Polarization Multiplexed M-QAM Signal with Symbol Placement Retention Masking Method |
| Sub Title (in English) | |
| Keyword(1) | Optical coherent communication |
| Keyword(2) | digital signal processing |
| Keyword(3) | quadrature amplitude modulation |
| Keyword(4) | common key cryptography |
| 1st Author's Name | Keiji Shimada |
| 1st Author's Affiliation | Kagawa University(Kagawa Univ.) |
| 2nd Author's Name | Mizuki Inagaki |
| 2nd Author's Affiliation | Kagawa University(Kagawa Univ.) |
| 3rd Author's Name | Takahiro Kodama |
| 3rd Author's Affiliation | Kagawa University(Kagawa Univ.) |
| Date | 2022-01-14 |
| Paper # | OCS2021-36 |
| Volume (vol) | vol.121 |
| Number (no) | OCS-320 |
| Page | pp.pp.16-21(OCS), |
| #Pages | 6 |
| Date of Issue | 2022-01-06 (OCS) |