论文标题
增强多用户和多eve系统的自由度
Increasing Security Degree of Freedom in Multi-user and Multi-eve Systems
论文作者
论文摘要
在本文中考虑了多用户和多动能器（MUME）方案中的安全通信。已经表明，当发射器同时将信息信号传输到预期的接收器和人造噪声以混淆窃听者时，可以改善保密性。已经提出了几种处理方案，以限制共沟通干扰（CCI）。在本文中，我们提出了提高的自由度（ISDF）方法的提高，该方法从肮脏的纸编码（DPC）和ZF梁形成中获取想法。通过在发射器上的已知干扰预算法，我们根据先前设计的预编码矩阵而不是其他用户的渠道设计每个预言器，而这些矩阵为返回提供了额外的自由度，可以设计预编码器的设计。模拟表明，所提出的方法可以实现更好的性能和相对较低的复杂性。
Secure communication in the Multi-user and Multi-eavesdropper (MUME) scenario is considered in this paper. It has be shown that secrecy can be improved when the transmitter simultaneously transmits information-bearing signal to the intended receivers and artificial noise to confuse the eavesdroppers. Several processing schemes have been proposed to limit the co-channel interference (CCI). In this paper, we propose the increasing security degree of freedom (ISDF) method, which takes idea from the dirty-paper coding (DPC) and ZF beam-forming. By means of known interference pre-cancelation at the transmitter, we design each precoder according to the previously designed precoding matrices, rather than other users' channels, which in return provides extra freedom for the design of precoders. Simulations demonstrate that the proposed method achieves the better performance and relatively low complexity.
