Dirty-Paper Coding Based Secure Transmission for Multiuser Downlink in Cellular Communication Systems
Dirty-Paper Coding Based Secure Transmission for Multiuser Downlink in Cellular Communication Systems
复制标题
蜂窝通信系统中多用户下行链路基于脏纸编码的安全传输
DOI：
10.1109/tvt.2016.2628871
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发表时间：
2017-07
影响因子：
6.8
通讯作者：
Mu Pengcheng
中科院分区：
文献类型：
--
作者：
Wang Bo;Mu Pengcheng
本文研究了多用户广播信道中只有窃听者统计信道状态信息的安全传输问题。在这种情况下，我们建议使用秘密脏纸编码（S-DPC）来支持一个用户的安全传输和其他用户的正常（非机密）传输。通过采用S-DPC对保密信息进行编码，使正常传输的所有含信息信号都被潜在的窃听者当作噪声处理，从而为安全传输提供了保密性。通过这种方式，所提出的方法利用了多用户广播的内在保密性，可以作为传统人工噪声（an）方案的节能替代方案。为了评估该方法的保密性能，并将其与AN方案进行比较，我们提出了两种基于s - dpc的安全传输方案，在保密中断概率（SOP）和正常传输速率的约束下最大化保密率。第一种方案直接对发射信号的协方差矩阵进行优化，并推导了一种新的难以处理的SOP约束近似，以方便优化。第二种方案结合零强制脏纸编码和AN，优化只涉及功率分配。我们建立了有效的数值算法来解决这两种方案的优化问题。理论和仿真结果表明，除了支持正常传输外，所提方案的可实现保密率与仅支持一个用户的安全传输的传统AN方案接近。
This paper studies the secure transmission in a multiuser broadcast channel where only the statistical channel state information of the eavesdropper is available. We propose to apply secret dirty-paper coding (S-DPC) in this scenario to support the secure transmission of one user and the normal (unclassified) transmission of the other users. By adopting the S-DPC and encoding the secret message in the first place, all the information-bearing signals of the normal transmission are treated as noise by potential eavesdroppers and thus provide secrecy for the secure transmission. In this way, the proposed approach exploits the intrinsic secrecy of multiuser broadcasting and can serve as an energy-efficient alternative to the traditional artificial noise (AN) scheme. To evaluate the secrecy performance of this approach and compare it with the AN scheme, we propose two S-DPC-based secure transmission schemes for maximizing the secrecy rate under constraints on the secrecy outage probability (SOP) and the normal transmission rates. The first scheme directly optimizes the covariance matrices of the transmit signals, and a novel approximation of the intractable SOP constraint is derived to facilitate the optimization. The second scheme combines zero-forcing dirty-paper coding and AN, and the optimization involves only power allocation. We establish efficient numerical algorithms to solve the optimization problems for both schemes. Theoretical and simulation results confirm that, in addition to supporting the normal transmission, the achievable secrecy rates of the proposed schemes can be close to that of the traditional AN scheme, which supports only the secure transmission of one user.
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影响因子：
2.8
作者：
G. Caire;S. Shamai
通讯作者：
G. Caire;S. Shamai
DOI：
10.1109/26.668742
发表时间：
1998-05
期刊：
IEEE Trans. Commun.
影响因子：
--
作者：
Hongsheng Gao;Peter J. Smith;M. V. Clark
通讯作者：
Hongsheng Gao;Peter J. Smith;M. V. Clark
DOI：
10.1002/nav.3800150308
发表时间：
1968-09
期刊：
Naval Research Logistics Quarterly
影响因子：
--
作者：
Stanley Zionts
通讯作者：
Stanley Zionts
影响因子：
6.8
作者：
Zongmian Li;Pengcheng Mu;Bo Wang-;Xiaoyan Hu
通讯作者：
Zongmian Li;Pengcheng Mu;Bo Wang-;Xiaoyan Hu
影响因子：
2.5
作者：
Liu, Ruoheng;Liu, Tie;Shamai (Shitz), Shlomo
通讯作者：
Shamai (Shitz), Shlomo