Multiple access wiretap channel with noiseless feedback
Multiple access wiretap channel with noiseless feedback
复制标题
具有无噪声反馈的多路访问窃听通道
DOI：
10.1049/iet-com.2016.1287
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发表时间：
2017-01
影响因子：
1.6
通讯作者：
Ma Zheng
中科院分区：
文献类型：
--
作者：
Dai Bin;Ma Zheng
无线通信系统上行链路的物理层安全通常被建模为多址窃听信道（MAC-WT），近年来受到了广泛的关注。在本文中，MAC-WT已被重新考虑的情况下，合法的接收机反馈他的接收信道输出通过两个无噪声的信道，分别返回到发射机。该模型被称为具有无噪声反馈的MAC-WT。给出了该反馈模型的保密容量区域的内界和外界。具体地说，我们首先在该反馈模型的保密容量区域上给出一个解码转发（DF）内界，该内界是通过允许每个发送器从反馈中解码另一个发送器发送的消息来构造的，然后每个发送器使用解码的消息重新编码自己的消息，即，该DF内边界允许独立的发射机彼此协作。然后，我们提供了一个严格大于DF内界的混合内界，它是通过使用反馈作为一种工具，不仅允许独立的发射机相互合作，而且还产生两个秘密密钥之间的合法接收机和两个发射机共享。最后，我们给出了该反馈模型的秘密容量区域的一个sato型外界。本文的结果通过一个高斯分布的例子得到了进一步的解释。
The physical layer security in the up-link of the wireless communication systems is often modeled as the multiple access wiretap channel (MAC-WT), and recently it has received a lot attention. In this paper, the MAC-WT has been re-visited by considering the situation that the legitimate receiver feeds his received channel output back to the transmitters via two noiseless channels, respectively. This model is called the MAC-WT with noiseless feedback. Inner and outer bounds on the secrecy capacity region of this feedback model are provided. To be specific, we first present a decode-and-forward (DF) inner bound on the secrecy capacity region of this feedback model, and this bound is constructed by allowing each transmitter to decode the other one's transmitted message from the feedback, and then each transmitter uses the decoded message to re-encode his own messages, i.e., this DF inner bound allows the independent transmitters to co-operate with each other. Then, we provide a hybrid inner bound which is strictly larger than the DF inner bound, and it is constructed by using the feedback as a tool not only to allow the independent transmitters to co-operate with each other, but also to generate two secret keys respectively shared between the legitimate receiver and the two transmitters. Finally, we give a sato-type outer bound on the secrecy capacity region of this feedback model. The results of this paper are further explained via a Gaussian example.
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DOI：
--
发表时间：
1961-01
期刊：
--
影响因子：
--
作者：
J. Wozencraft;M. Horstein
通讯作者：
J. Wozencraft;M. Horstein
DOI：
10.1109/isit.2006.261988
发表时间：
2006-05
期刊：
2006 IEEE International Symposium on Information Theory
影响因子：
--
作者：
Ender Tekin;A. Yener
通讯作者：
Ender Tekin;A. Yener
DOI：
10.1109/tifs.2015.2419182
发表时间：
2015-07-01
影响因子：
6.8
作者：
Dai, Bin;Ma, Zheng;Fang, Xuming
通讯作者：
Fang, Xuming
影响因子：
2.5
作者：
COVER, TM;LEUNG, CSK
通讯作者：
LEUNG, CSK
DOI：
10.1007/11889342_13
发表时间：
2005-08
期刊：
Electron. Notes Discret. Math.
影响因子：
--
作者：
R. Ahlswede;N. Cai
通讯作者：
R. Ahlswede;N. Cai