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Chinese Optics Letters, Volume. 22, Issue 4, 040602(2024)

High-security multi-constellation shaping modulation with asymmetric encryption

Lei Jiang1, Bo Liu2、*, Jianxin Ren2, Xiangyu Wu2, Rahat Ullah2, Yaya Mao2, Shuaidong Chen2, Yilan Ma2, Lilong Zhao2, and Feng Tian1
Author Affiliations
  • 1Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 2Nanjing University of Information Science & Technology, Nanjing 210044, China
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    Figures&Tables (10)
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    Figures & Tables(10)
    Schematic diagram of the proposed scheme.

    Fig. 1. Schematic diagram of the proposed scheme.

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    Principle of asymmetric encryption.

    Fig. 2. Principle of asymmetric encryption.

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    Constellation diagram of (a) user_1, (b) user_2, (c) user_3, (d) user_4, and (e) multi-constellation combination. (f) Top view of (e).

    Fig. 3. Constellation diagram of (a) user_1, (b) user_2, (c) user_3, (d) user_4, and (e) multi-constellation combination. (f) Top view of (e).

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    Experimental setup.

    Fig. 4. Experimental setup.

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    The BER varies with received optical power after back-to-back and multicore fiber transmission.

    Fig. 5. The BER varies with received optical power after back-to-back and multicore fiber transmission.

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    The BER varies with received optical power after seven-core fiber transmission.

    Fig. 6. The BER varies with received optical power after seven-core fiber transmission.

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    (a) BER curves versus received optical power, and (b)–(e) constellation graphs of users_1–4.

    Fig. 7. (a) BER curves versus received optical power, and (b)–(e) constellation graphs of users_1–4.

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    BER curve of the wrong private key.

    Fig. 8. BER curve of the wrong private key.

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    Images: (a) before encryption, (b) after illegal reception, (c) after legal reception. Histograms: (d) before encryption, (e) after illegal reception, (f) after legal reception.

    Fig. 9. Images: (a) before encryption, (b) after illegal reception, (c) after legal reception. Histograms: (d) before encryption, (e) after illegal reception, (f) after legal reception.

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    • Table 1. Mapping Relationship between Binary Symbols and Each Users’ Constellation Points Coordinates

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      Table 1. Mapping Relationship between Binary Symbols and Each Users’ Constellation Points Coordinates

      Binary DataConstellation Coordinates (p = 2.22, q = 1.41, u = 1.57, v = 2.42)
      User_1User_2User_3User_4
      0000(1, −1, −1)(q, 0, q)(q, 0, −1)(0, v, 0)
      0001(1, 1, −1)(q, 0, −q)(0, q, −1)(0, −v, 0)
      0010(−1, 1, −1)(−q, 0, −q)(−q, 0, −1)(−p, p, 0)
      0100(−1, −1, −1)(q, 0, q)(0, −q, −1)(−v, 0, 0)
      1000(1, −1, 1)(0, q, q)(q, 0, 1)(p, 0, p)
      1100(1, 1, 1)(0, q, −q)(0, q, 1)(p, 0, −p)
      1010(−1, 1, 1)(0, −q, −q)(−q, 0, 1)(0, −p, −p)
      1001(−1, −1, 1)(0, −q, q)(0, −q, 1)(−p, 0, p)
      0110(p, 0, p)(q, q, 0)(u, u, p)(−p, p, 0)
      0101(p, 0, −p)(q, −q, 0)(u, u, −p)(v, 0, 0)
      0011(−p, 0, p)(−q, −q, 0)(−u, −u, −p)(p, p, 0)
      1110(−p, 0, p)(−q, q, 0)(−u, −u, p)(0, p, p)
      1011(0, p, p)(q, q, q)(−u, u, p)(0, −p, p)
      1101(0, p, −p)(q, −q, −q)(−u, u, −p)(−p, 0, −p)
      0111(0, −p, −p)(−q, −q, q)(u, −u, −p)(p, −p, 0)
      1111(0, −p, p)(−q, q, −q)(u, −u, p)(0, p, −p)
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    Lei Jiang, Bo Liu, Jianxin Ren, Xiangyu Wu, Rahat Ullah, Yaya Mao, Shuaidong Chen, Yilan Ma, Lilong Zhao, Feng Tian, "High-security multi-constellation shaping modulation with asymmetric encryption," Chin. Opt. Lett. 22, 040602 (2024)

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Oct. 10, 2023

    Accepted: Jan. 6, 2024

    Published Online: Apr. 28, 2024

    The Author Email: Bo Liu (bo@nuist.edu.cn)

    DOI:10.3788/COL202422.040602

    CSTR:32184.14.COL202422.040602

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology