Study On Optical Communications, Volume. 50, Issue 3, 23007201(2024)

Economic Modeling and Fast Planning Algorithm of Undersea Optical Cable System

Wenjing GAO and Guanjun GAO*
Author Affiliations
  • National Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
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    Figures & Tables(11)
    The process of cascade genetics-lexicographic order algorithm
    The iterative result of genetic algorithm when span distance=6 000 km and transmission capacity=100 Tbit/s
    The calculation times of the two algorithms under different longest span
    The optimal cost of submarine cable communication system at different span distances
    • Table 1. System cost parameter

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      Table 1. System cost parameter

      参数名称参数值
      每公里敷设成本0.7
      每公里海缆成本(LW,光单元外径为2.65 mm)0.2
      每公里光纤成本(PSCF110)0.005
      中继器-光放大器成本2
      中继器-核心结构件18
      100 Gbit/s相干收发机成本1
    • Table 2. Submarine cable cost parameter

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      Table 2. Submarine cable cost parameter

      光单元外径/mmLWSADA
      2.65(Nfp≤12)1.0001.3442.025
      3.70(Nfp≤30)1.0421.4102.117
      4.40(Nfp>30)1.0781.4462.179
    • Table 3. Optical fiber cost parameter

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      Table 3. Optical fiber cost parameter

      光纤类型成本衰减系数(dB/km)非线性系数(1/W/km)色散系数(ps/km/nm)有效面积/μm2
      SSMF1.00.1851.3118.080
      PSCF1105.00.1600.8120.5110
      PSCF1307.50.1620.6820.5130
      PSCF15010.00.1540.5920.8150
    • Table 4. System parameter

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      Table 4. System parameter

      参数名称参数值
      跨段距离Lspan/km[40,120]
      中继器光功率[16,22]
      调制格式QPSK,8QAM,16QAM,32QAM,64QAM
      光纤对数[1,32]
      符号速率/Gbaud30
      波长数[1,80]
      放大器噪声指数/dB5
      光电转换效率η1.5%
      控制电路ε10%
      海缆电阻/Ω/km1
      Qlimit6
    • Table 5. Comparison of planning results of submarine cable system with transmission capacity of 100 Tbit/s and transmission distance of 6 000~16 000 km

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      Table 5. Comparison of planning results of submarine cable system with transmission capacity of 100 Tbit/s and transmission distance of 6 000~16 000 km

      传输距离/km供电电压/kV全遍历法级联遗传-字典序法C(%)
      CTQBOLQEOL实际容量/Tbit/sCGQBOLQEOL实际容量/Tbit/s
      6 0001513 384.68.3757.164100.8013 384.68.3757.164100.800
      8 0001517 618.88.1187.053100.8017 618.88.1187.053100.800
      10 0001522 645.08.0437.076100.8022 645.08.0437.076100.800
      12 0003026 697.28.0547.075100.8026 697.28.0547.075100.800
      14 0003030 963.88.6407.416100.3230 963.88.6407.416100.320
      16 0003036 190.08.1867.104100.3236 314.08.2817.211100.320.34
    • Table 6. The planning scheme of the total traversal algorithm

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      Table 6. The planning scheme of the total traversal algorithm

      传输距离/km供电电压/kV跨段距离/km光纤类型光纤对数调制格式信道数中继器功率/dBm
      6 00015118PSCF11078QAM8020
      8 00015104PSCF11078QAM8019
      10 0001596PSCF15078QAM8017
      12 0003097PSCF15078QAM8019
      14 00030120PSCF11011QPSK7619
      16 00030106PSCF11011QPSK7617
    • Table 7. The planning scheme of cascade genetic-lexicographical algorithm

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      Table 7. The planning scheme of cascade genetic-lexicographical algorithm

      传输距离/km供电电压/kV跨段距离/km光纤类型光纤对数调制格式信道数中继器功率/dBm
      6 00015118PSCF11078QAM8020
      8 00015104PSCF11078QAM8019
      10 0001596PSCF15078QAM8017
      12 0003097PSCF15078QAM8019
      14 00030120PSCF11011QPSK7619
      16 00030105PSCF11011QPSK7617
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    Wenjing GAO, Guanjun GAO. Economic Modeling and Fast Planning Algorithm of Undersea Optical Cable System[J]. Study On Optical Communications, 2024, 50(3): 23007201

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    Paper Information

    Category: Research Articles

    Received: May. 3, 2023

    Accepted: --

    Published Online: Jul. 19, 2024

    The Author Email: GAO Guanjun (ggj@bupt.edu.cn)

    DOI:10.13756/j.gtxyj.2024.230072

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