采用PSK调制的安全传输中人工噪声的优化利用

发布时间：2018-05-09 20:22

本文选题：物理层安全 + 人工噪声　；参考：《北京邮电大学学报》2017年01期

【摘要】：在采用波束赋形和人工噪声的物理层安全传输系统中,利用人工噪声提高合法接收端的性能.发送端根据发送符号和信道系数判断人工噪声的分量是否对合法接收端的信号检测有益,并由此将人工噪声分为有益噪声和普通噪声,分别进行不同的波束赋形处理.在不改变人工噪声干扰窃听端接收的前提下,利用人工噪声提高合法接收端的接收性能.对采用相移键控(PSK)调制时的误码性能和保密容量进行理论分析和仿真,结果显示,与传统的人工噪声方案相比,所提出的人工噪声方案可提高合法接收端的性能,改善保密容量.
[Abstract]:In the physical layer secure transmission system with beamforming and artificial noise, artificial noise is used to improve the performance of the legitimate receiver. The transmitter determines whether the component of artificial noise is beneficial to the signal detection of the legitimate receiver according to the transmission symbol and the channel coefficient, and then divides the artificial noise into useful noise and ordinary noise, and carries out different beamforming processing. Without changing the artificial noise to interfere with the eavesdropping receiver, the artificial noise is used to improve the receiving performance of the legitimate receiver. The error performance and security capacity of PSK modulation are theoretically analyzed and simulated. The results show that compared with the traditional artificial noise scheme, the proposed artificial noise scheme can improve the performance of the legitimate receiver. Improve confidentiality capacity.
【作者单位】：重庆邮电大学移动通信技术重庆市重点实验室;
【基金】：国家自然科学基金项目(61471076) 重庆市基础与前沿研究计划(cstc2015jcyj A40047) 长江学者和创新团队发展计划(IRT1299) 重庆市科委重点实验室专项经费重庆市教委科学技术研究项目(KJ160043)
【分类号】：TN918

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