arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.3033cs.ITmath.IT
收藏

降级复合多接收机窃听信道

Degraded Compound Multi-receiver Wiretap Channels

Ersen Ekrem, Sennur Ulukus

摘要:

本文研究了退化的复合多接收机窃听信道。退化的复合多接收机窃听信道由两组用户和一组窃听者组成,其中,如果从每组用户中选取任意一个用户和任意一个窃听者,则它们满足一定的马尔可夫链。我们研究两种不同的通信方案,这个通道。在第一种情况下,发射机希望向第一(较强)组中的用户发送机密消息,并向第二(较弱)组中的用户发送不同的机密消息,其中两个消息都需要对窃听者保密。在这种情况下,我们假设只有一个窃听者。我们得到了一般离散无记忆信道模型、并行信道模型和高斯并行信道模型的保密容量域。对于高斯多输入多输出(MIMO)信道模型,当第二组中只有一个用户时,我们得到了保密容量区域。在第二种情况下,我们研究,发射机发送一个机密的消息,用户在第一组需要保密的第二组用户和窃听者。此外,发射机向第二组中的用户发送不同的机密消息,该机密消息仅需要对窃听者保密。在这种情况下,我们不限制窃听者的数量。在第一种情况下,我们得到了一般离散无记忆信道模型,并行信道模型,高斯并行信道模型的保密容量区域。对于高斯MIMO信道模型,我们建立了第二组中只有一个用户时的保密容量区域。

英文摘要:

In this paper, we study the degraded compound multi-receiver wiretap channel. The degraded compound multi-receiver wiretap channel consists of two groups of users and a group of eavesdroppers, where, if we pick an arbitrary user from each group of users and an arbitrary eavesdropper, they satisfy a certain Markov chain. We study two different communication scenarios for this channel. In the first scenario, the transmitter wants to send a confidential message to users in the first (stronger) group and a different confidential message to users in the second (weaker) group, where both messages need to be kept confidential from the eavesdroppers. For this scenario, we assume that there is only one eavesdropper. We obtain the secrecy capacity region for the general discrete memoryless channel model, the parallel channel model, and the Gaussian parallel channel model. For the Gaussian multiple-input multiple-output (MIMO) channel model, we obtain the secrecy capacity region when there is only one user in the second group. In the second scenario we study, the transmitter sends a confidential message to users in the first group which needs to be kept confidential from the second group of users and the eavesdroppers. Furthermore, the transmitter sends a different confidential message to users in the second group which needs to be kept confidential only from the eavesdroppers. For this scenario, we do not put any restriction on the number of eavesdroppers. As in the first scenario, we obtain the secrecy capacity region for the general discrete memoryless channel model, the parallel channel model, and the Gaussian parallel channel model. For the Gaussian MIMO channel model, we establish the secrecy capacity region when there is only one user in the second group.

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。

↑