Wiretapping Strategies for Artificial Noise Assisted Communication in MU-MIMO wiretap channel

被引:0
|
作者
Wang, Shu [1 ]
Da, Xinyu [1 ]
Chu, Zhenyong [1 ]
机构
[1] Air Force Engn Univ, Informat & Nav Coll, Xian 710077, Peoples R China
基金
中国国家自然科学基金;
关键词
Physical layer security; artificial noise(AN); joint approximate diagonalization of eigen-matrices (JADE) algorithm; wiretapping; SECRECY; NETWORKS; SECURITY; CSI;
D O I
10.3837/tiis.2016.05.012
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We investigate the opposite of artificial noise (AN)-assisted communication in multiple-input-multiple-output (MIMO) wiretap channels for the multiuser case by taking the side of the eavesdropper. We first define a framework for an AN-assisted multiuser multiple-input-multiple-output (MU-MIMO) system, for which eavesdropping methods are proposed with and without knowledge of legitimate users' channel state information (CSI). The proposed method without CSI is based on a modified joint approximate diagonalization of eigen-matrices algorithm, which eliminates permutation indetermination and phase ambiguity, as well as the minimum description length algorithm, which blindly estimates the number of secret data sources. Simulation results show that both proposed methods can intercept information effectively. In addition, the proposed method without legitimate users' CSI performs well in terms of robustness and computational complexity.
引用
收藏
页码:2166 / 2180
页数:15
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