A Note on the Secrecy Capacity of the Multiple-Antenna Wiretap Channel

被引：373
|
作者：
Liu, Tie [1 ]
Shamai , Shlomo [2 ]
机构：
[1] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA
[2] Technion Israel Inst Technol, Dept Elect Engn, IL-32000 Technion, Haifa, Israel
来源：
IEEE TRANSACTIONS ON INFORMATION THEORY | 2009年 / 55卷 / 06期
关键词：
Channel enhancement; multiple-antenna communications; wiretap channel; REGION;
D O I：
10.1109/TIT.2009.2018322
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The secrecy capacity of the multiple-antenna wiretap channel under the average total power constraint was recently characterized, independently, by Khisti and Wornell and Oggier and Hassibi using a Sato-like argument and matrix analysis tools. This paper presents an alternative characterization of the secrecy capacity of the multiple-antenna wiretap channel under a more general matrix constraint on the channel input using a channel-enhancement argument. This characterization is by nature information-theoretic and is directly built on the intuition regarding to the optimal transmission strategy in this communication scenario.
引用
收藏
页码：2547 / 2553
页数：7
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