光网络中大功率带间串扰攻击研究

发布时间：2018-02-25 17:51

本文关键词： 光纤光学光网络大功率带间串扰攻击攻击信号功率光纤非线性　出处：《激光与光电子学进展》2014年08期 　论文类型：期刊论文

【摘要】：理论分析了光网络中大功率带间串扰攻击的产生机理,得出了攻击信号功率和光纤非线性折射率系数是大功率带间串扰攻击对用户信号质量产生破坏影响的主要因素。在VPI中搭建仿真实验系统,以误码率为信号质量评价指标,研究了大功率带间串扰攻击对用户信号质量的攻击影响及其攻击传播能力。结果表明,大功率带间串扰攻击会造成和攻击信号使用同一条光纤进行传输的用户信号质量劣化。攻击信号功率越高,信道间隔距攻击信号越近,光纤非线性折射率系数越大,用户信号受攻击影响越严重。大功率带间串扰攻击具有一定的攻击传播能力,当攻击信号功率高于用户信号功率27 dB时,攻击信号的攻击影响可传播至第四个光交叉连接器。
[Abstract]:The mechanism of large power inter-band crosstalk attacks in optical networks is theoretically analyzed. It is concluded that the power of attack signal and the nonlinear refractive index coefficient of optical fiber are the main factors that affect the quality of user signal caused by high-power inter-band crosstalk attack. A simulation experiment system is built in VPI, and the error rate is taken as signal quality evaluation index. The influence of high-power inter-band crosstalk attack on the signal quality of the user and its attack propagation ability are studied. The results show that, The high power inter-band crosstalk attack will result in the deterioration of the quality of the user signal transmitted by the same fiber as the attack signal. The higher the power of the attack signal, the closer the channel spacing is to the attack signal, and the greater the nonlinear refractive index coefficient of the fiber is. When the power of attack signal is 27 dB higher than that of user signal, the attack effect of attack signal can spread to the fourth optical cross connector.
【作者单位】：西安通信学院光纤通信教研室;西安通信学院指挥所信息系统教研室;
【基金】：国家自然科学基金(61072125) 中国人民解放军国防基金(2012JY002-260)
【分类号】：TN929.1

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