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An approach for physical layer security enhancement and PAPR reduction in OFDM-PON

机译:OFDM-PON中用于物理层安全性增强和PAPR降低的方法

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This work develops a solution for simultaneous physical layer security enhancement and peak-to-average power ratio (PAPR) reduction for orthogonal frequency division multiplexing passive optical network (OFDM-PON) systems. The encryption is carried out within the subcarriers with the help of three-dimensional (3-D) chaotic cat map. Experimental results demonstrate that the OFDM-PON system under the protection of the proposed technique is high sensitive to the secret key, invalid optical network units cannot obtain any useful information from the ciphertext. Besides, the PAPR of the OFDM symbols has also been significantly reduced, and hence the system is more robust against various nonlinear disturbances. (C) 2017 Elsevier Inc. All rights reserved.
机译:这项工作为正交频分复用无源光网络(OFDM-PON)系统开发了同时增强物理层安全性和降低峰均功率比(PAPR)的解决方案。借助三维(3-D)混沌猫图在子载波内进行加密。实验结果表明,在所提出的技术保护下的OFDM-PON系统对密钥高度敏感,无效的光网络单元无法从密文中获得任何有用的信息。此外,OFDM符号的PAPR也已大大降低,因此系统对各种非线性干扰具有更强的鲁棒性。 (C)2017 Elsevier Inc.保留所有权利。

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