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High security OFDM-PON with a physical layer encryption based on 4D-hyperchaos and dimension coordination optimization.
Optics Express ( IF 3.2 ) Pub Date : 2020-07-01 , DOI: 10.1364/oe.399703
Jianye Zhao , Bo Liu , Yaya Mao , Rahat Ullah , Jianxin Ren , Shuaidong Chen , Lei Jiang , Shun Han , Jingyi Zhang , Jiajia Shen

In this article we have enhanced the security of an orthogonal frequency division multiplexed passive optical network (OFDM-PON) based on four dimensional (4D) encryption, including constellation, subcarrier, symbol and time, which is proposed for the first time in this paper. 4D-hyperchaotic mapping is used to generate four masking factors to achieve ultra-high security encryption in four different dimensions. During the encryption, dimension coordination optimization is adopted, which effectively reduces the time cost of the system and improves the encryption efficiency by 3 times. At the same time, probabilistic shaping (PS) technology is used to further optimize the system that has effectively improved the bit error performance by about 1 dB. The proposed encryption technique for OFDM-PON has been demonstrated successfully with the help of experiments. The generated OFDM signal is modulated by the quadrature amplitude modulation (QAM) technique, which transmitted 16 Gb/s data rate across a 25 km fiber span of standard single-mode fiber. The values of bit error rate (BER) and peak-to-average-power ratio (PAPR) are analyzed during the experiments, and the obtained results show that the proposed security-enhanced OFDM-PON has high sensitivity and security and can be well compatible with PS and OFDM technologies. The proposed scheme has very reliable security performance and also has excellent benefit improvement, which is very promising in the future PS-OFDM-PON.

中文翻译:

高安全性OFDM-PON,具有基于4D超混沌和尺寸协调优化的物理层加密功能。

本文我们首次提出了基于星座,子载波,符号和时间的四维(4D)加密的正交频分复用无源光网络(OFDM-PON)的安全性。4D-超混沌映射用于生成四个掩蔽因子,以实现四个不同维度的超高安全性加密。加密过程中采用维数协调优化,有效降低了系统的时间成本,加密效率提高了3倍。同时,概率整形(PS)技术用于进一步优化系统,从而有效地将误码性能提高了约1 dB。通过实验成功地证明了所提出的OFDM-PON加密技术。生成的OFDM信号通过正交幅度调制(QAM)技术进行调制,该技术在标准单模光纤的25 km光纤跨度上以16 Gb / s的速率传输数据。在实验中分析了误码率(BER)和峰均功率比(PAPR)的值,得到的结果表明,所提出的安全性增强的OFDM-PON具有较高的灵敏度和安全性,可以很好与PS和OFDM技术兼容。所提出的方案具有非常可靠的安全性能,并且具有优异的收益改进,这在未来的PS-OFDM-PON中非常有前途。它在25公里的标准单模光纤的光纤跨度上传输了16 Gb / s的数据速率。在实验过程中分析了误码率(BER)和峰均功率比(PAPR)的值,得到的结果表明,所提出的安全性增强的OFDM-PON具有较高的灵敏度和安全性,并且可以很好地解决问题。与PS和OFDM技术兼容。所提出的方案具有非常可靠的安全性能,并且具有优异的收益改进,这在未来的PS-OFDM-PON中非常有前途。它在25公里的标准单模光纤的光纤跨度上传输了16 Gb / s的数据速率。在实验中分析了误码率(BER)和峰均功率比(PAPR)的值,得到的结果表明,所提出的安全性增强的OFDM-PON具有较高的灵敏度和安全性,可以很好与PS和OFDM技术兼容。所提出的方案具有非常可靠的安全性能,并且具有优异的收益改进,这在未来的PS-OFDM-PON中是非常有希望的。结果表明,所提出的增强安全性的OFDM-PON具有较高的灵敏度和安全性,可以很好地与PS和OFDM技术兼容。所提出的方案具有非常可靠的安全性能,并且具有优异的收益改进,这在未来的PS-OFDM-PON中非常有前途。结果表明,所提出的增强安全性的OFDM-PON具有较高的灵敏度和安全性,可以很好地与PS和OFDM技术兼容。所提出的方案具有非常可靠的安全性能,并且具有优异的收益改进,这在未来的PS-OFDM-PON中非常有前途。
更新日期:2020-07-06
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