A Robust Beamforming Approach to Guarantee Instantaneous Secrecy Rate

被引：11

作者：

Choi, Jinho ^{[1
]}

机构：

[1] GIST, Sch Informat & Commun, Gwangju 500712, South Korea

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2016年 / 15卷 / 02期

关键词：

Convex optimization; random masked beamforming; secure communications; PHYSICAL LAYER SECURITY; WIRETAP CHANNELS; CAPACITY; SYSTEMS; BOUNDS;

D O I：

10.1109/TWC.2015.2482494

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider a well-known beamforming approach that induces jamming signals to avoid eavesdropping from a transmitter equipped with an antenna array in this paper. With this beamforming, which is called masked beamforming, in order to guarantee a certain instantaneous secrecy rate, we formulate robust beamforming problems with a constraint that deals with the eavesdropper channel's uncertainty and find the solutions. Unlike a guaranteed ergodic secrecy rate, this guaranteed instantaneous secrecy rate allows us to use codes of short codewords for secure communications with masked beamforming over slow-fading channels. In addition, since the optimal solutions are found in closed form, we do not need to resort to any convex optimization solvers.

引用

页码：1076 / 1085

页数：10

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