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arXiv 1202.6597cs.ITcs.CRmath.IT
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基于中断约束的协同干扰保密率最大化

Outage Constrained Secrecy Rate Maximization Using Cooperative Jamming

Shuangyu Luo, Jiangyuan Li, Athina Petropulu

摘要:

我们考虑一个高斯MISO窃听信道,其中一个多天线源与一个单天线目的地在一个单天线窃听者的存在。通信是由多天线助手协助,充当干扰窃听者。每个辅助器独立地将位于信道的零空间中的噪声发送到目的地,因此不对目的地产生干扰。假设窃听者信道的不确定性,我们推导出源信号的最佳协方差矩阵,使保密率最大化的中断概率和功率约束。假设窃听信道服从零均值高斯模型,且协方差已知,推导了系统中断概率的封闭形式。仿真结果支持的分析。

英文摘要:

We consider a Gaussian MISO wiretap channel, where a multi-antenna source communicates with a single-antenna destination in the presence of a single-antenna eavesdropper. The communication is assisted by multi-antenna helpers that act as jammers to the eavesdropper. Each helper independently transmits noise which lies in the null space of the channel to the destination, thus creates no interference to the destination. Under the assumption that there is eavesdropper channel uncertainty, we derive the optimal covariance matrix for the source signal so that the secrecy rate is maximized subject to probability of outage and power constraints. Assuming that the eavesdropper channels follow zero-mean Gaussian model with known covariances, we derive the outage probability in a closed form. Simulation results in support of the analysis are provided.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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