无窃听者CSI干扰信道的安全自由度

2015 IEEE Information Theory Workshop - Fall (ITW) Pub Date : 2015-12-21 DOI:10.1109/ITWF.2015.7360787

P. Mukherjee, S. Ulukus

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引用次数: 3

摘要

我们考虑有外部窃听者的k用户干扰信道，在发射器处没有窃听者的信道状态信息(CSIT)。我们通过提供一个新的基于对齐的可实现方案和一个匹配的反向来确定该信道的精确和安全自由度。我们的研究结果表明，缺乏窃听者的CSIT对外部窃听者干扰信道的最佳s.d.o.f.没有显著影响，特别是当用户数量较大时。

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Secure degrees of freedom of the interference channel with no eavesdropper CSI

We consider the K-user interference channel with an external eavesdropper, with no eavesdropper's channel state information at the transmitters (CSIT). We determine the exact sum secure degrees of freedom (s.d.o.f.) for this channel by providing a new alignment based achievable scheme and a matching converse. Our results show that the lack of eavesdropper's CSIT does not have a significant impact on the optimal s.d.o.f. of the interference channel with an external eavesdropper, especially when the number of users is large.

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2015 IEEE Information Theory Workshop - Fall (ITW)

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