标题： 具有受限随机化的安全通信 显示英文标题

标题： On Secure Communication with Constrained Randomization

摘要： 在本文中，我们研究编码过程中对随机化约束如何影响窃听信道上的可实现保密速率。 特别是，我们表征了具有速率受限的局部随机源和能力较弱的窃听者信道的保密容量，这表明有限的速率会导致保密速率损失，但不会排除保密性。 我们还讨论了在协作干扰背景下速率受限随机化的更实际方面。 最后，我们表明，使用非均匀的随机源进行安全通信是可能的；这表明设计鲁棒编码方案的可能性。 显示英文摘要

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.