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arXiv 1202.5529cs.ITmath.IT
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带约束随机化的保密通信

On Secure Communication with Constrained Randomization

Matthieu R. Bloch, Joerg Kliewer

摘要:

在本文中,我们调查如何限制在编码过程中的随机化影响的保密率可实现窃听信道。特别是,我们的特点的保密能力与一个有限的本地源的随机性和一个能力较低的窃听者的信道,这表明,有限的速率招致的保密率惩罚,但不排除保密。我们还讨论了一个更实际的方面,速率限制随机化的背景下,合作干扰。最后,我们表明,安全的通信是可能的随机性的非均匀源,这表明设计强大的编码方案的可能性。

英文摘要:

In this paper, we investigate how constraints on the randomization in the encoding process affect the secrecy rates achievable over wiretap channels. In particular, we characterize the secrecy capacity with a rate-limited local source of randomness and a less capable eavesdropper's channel, which shows that limited rate incurs a secrecy rate penalty but does not preclude secrecy. We also discuss a more practical aspect of rate-limited randomization in the context of cooperative jamming. Finally, we show that secure communication is possible with a non-uniform source for randomness; this suggests the possibility of designing robust coding schemes.

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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