Influence of inter-channel nonlinear interference on the QoT estimation for elastic optical fiber networks

被引：2
|
作者：
Bai, Jing [1 ]
Shen, Yifan [1 ]
Xu, Cheng [1 ]
Gao, Guanjun [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
来源：
2019 18TH INTERNATIONAL CONFERENCE ON OPTICAL COMMUNICATIONS AND NETWORKS (ICOCN) | 2019年
关键词：
quality of transmission (QoT); QoT estimation; inter-channel nonlinear interference (ICNI); optical networks; NOISE;
D O I：
10.1109/icocn.2019.8934920
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Accurate quality of transmission (QoT) estimation has become an essential function for elastic optical networks. This paper investigates the influence of inter-channel nonlinear interference (ICNI) on the QoT estimation under flexible network configurations. Based on the modulation format dependent inter-channel nonlinearity calculation, the influence of interfering channel modulation format, channel spacing, and optical power on the QoT estimation is compared and analyzed. Numerical results show the Gaussian noise (GN) model- based nonlinearity estimation can underestimate the Q factor by 3.6 dB for ICNI limited systems.
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收藏
页数：3
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