基于高斯窃听信道的安全编码方法性能分析

Performance Analysis of Secure Coding Method Based on Gaussian Wiretap Channel

本文基于极化码的安全编码技术,分析了在高斯退化窃听信道环境下做使用安全编码的性能,当安全编码方法运用在码长较大的情况时,其未充分利用信道极化产生的比特信道传输秘密消息,针对此情况本文提出了一种传输秘密消息的安全比特信道的选取方法。与传统的安全编码方法相比,本方案能够在主信道传输误比特率受限时,提高传输安全性能。

A secure coding method based on a polar coding technique in gaussian channel degradation tapped environment is proposed in this paper.It did not make full use of the channel polarization bits secret news channel transmission when the proposed security coding method used in the case of long code length. Aimed at the situation, this paper puts forward a method of choosing the safe secret message bit transmission channel at the same time. Compared with the traditional secure coding method, this scheme can improve the transmission security performance when the bit-error rate is limited.