Mismatched Models to Lower Bound the Capacity of Dual-Polarization Optical Fiber Channels
Mismatched Models to Lower Bound the Capacity of Dual-Polarization Optical Fiber Channels
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DOI：
10.1109/jlt.2021.3069686
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发表时间：
2021-06-01
影响因子：
4.7
通讯作者：
Kramer, Gerhard
中科院分区：
文献类型：
--
作者：
Garcia-Gomez, Francisco Javier;Kramer, Gerhard
正则微扰施加到Manakov方程，并激发了一个广义的相关相位和加性噪声模型的波分复用双偏振光纤信道。该模型包括三个隐藏的高斯马尔可夫过程：相位噪声，极化旋转，和加性噪声。粒子滤波被用来计算具有频率相关的功率和延迟的多载波通信的容量的下限。相对于现有模型，在其峰值数据速率下，实现了频谱效率中0.17 bits/s/Hz/pol的增益或功率效率中0.8 dB的增益。频率相关的延迟也增加了单偏振信道的频谱效率。
Regular perturbation is applied to the Manakov equation and motivates a generalized correlated phase-and-additive noise model for wavelength-division multiplexing over dual-polarization optical fiber channels. The model includes three hidden Gauss-Markov processes: phase noise, polarization rotation, and additive noise. Particle filtering is used to compute lower bounds on the capacity of multi-carrier communication with frequency-dependent powers and delays. A gain of 0.17 bits/s/Hz/pol in spectral efficiency or 0.8 dB in power efficiency is achieved with respect to existing models at their peak data rate. Frequency-dependent delays also increase the spectral efficiency of single-polarization channels.