Secure Polar Coding for the Two-Way Wiretap Channel

Secure Polar Coding for the Two-Way Wiretap Channel
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双向窃听通道的安全极性编码

DOI:
10.1109/access.2018.2813998
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发表时间:
2016-12
期刊:
影响因子:
3.9
通讯作者:
Cong Ling
Cong Ling
中科院分区:
计算机科学3区
文献类型:
--
作者:
Mengfan Zheng;Meixia Tao;Wen Chen;Cong Ling

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在本文中,我们考虑的问题极化编码的安全通信的双向窃听信道,其中两个合法的用户相互通信同时,而一个被动的窃听者偷听到他们交换的信号的组合。设计了一种低复杂度的极化编码协同干扰方案,在强保密准则下,实现了一般双向窃听信道的整个保密率域。链接方法用于使极坐标索引正确对齐。两个合法用户之间共享所需的随机性被视为一个有限的资源,我们表明,它的速率可以忽略不计,通过增加块的长度和链接块的数量。针对窃听者信道相对于合法信道退化的特殊情况,提出了一种简化方案,该方案在单个传输块内同时保证可靠性和弱保密性。
In this paper, we consider the problem of polar coding for secure communications over the two-way wiretap channel, where two legitimate users communicate with each other simultaneously, while a passive eavesdropper overhears a combination of their exchanged signals. We design a low complexity polar coded cooperative jamming scheme that achieves the whole secrecy rate region of the general two-way wiretap channel under the strong secrecy criterion. The chaining method is used to make proper alignment of polar indices. The randomness required to be shared between two legitimate users is treated as a limited resource and we show that its rate can be made negligible by increasing the blocklength and the number of chained blocks. For the special case when the eavesdropper channel is degraded with respect to the legitimate ones, a simplified scheme is proposed which can simultaneously ensure reliability and weak secrecy within a single transmission block.
DOI: --
发表时间: 2014-11
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