Optimality of Beamforming and Closed Form Secrecy Capacity of MIMO Wiretap Channels with Two Transmit Antennas

被引：0

作者：

Li, Jiangyuan ^{[1
]}

Petropulu, Athina ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Elect & Comp Engn, Piscataway, NJ 08854 USA

来源：

2013 16TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS (WPMC) | 2013年

关键词：

Secrecy capacity; MIMO wiretap channel; physical layer security; TAP CHANNEL; SECURE TRANSMISSION;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A Gaussian multiple-input multiple-output (MIMO) wiretap channel model is considered. The input is a two-antenna transmitter, while the outputs are the legitimate receiver and an eavesdropper, both equipped with multiple antennas. All channels are assumed to be known. The problem of obtaining the optimal input covariance matrix that achieves secrecy capacity subject to a sum power constraint is addressed, and a closed-form expression for the secrecy capacity is obtained. The sufficient and necessary condition for beamforming to be optimal is also given.

引用

页数：5

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