An Introduction to Transmit Antenna Selection in MIMO Wiretap Channels

作     者：Nan Yang Maged Elkashlan Phee Lep Yeoh Jinhong Yuan 

作者机构：The University of New South Wales Queen Mary University of London The University of Melbourne 

出 版 物：《ZTE Communications》 (中兴通讯技术（英文版）)

年 卷 期：2013年第11卷第3期

页      面：26-32页

学科分类：11[军事学] 1105[军事学-军队指挥学] 0839[工学-网络空间安全] 08[工学] 110505[军事学-密码学] 110503[军事学-军事通信学] 

主　　题：physical layer security transmit antenna selection secrecy outage probability wireless fading 

摘      要：This paper is a survey of transmit antenna selection-a low-complexity, energy-efficient method for improving physical layer security in multiple-input multiple-output wiretap channels. With this method, a single antenna out of multiple antennas is selected at the transmitter. We review a general analytical framework for analyzing exact and asymptotic secrecy of transmit antenna selection with receive maximal ratio combining, selection combining, or generalized selection combining. The analytical results prove that secrecy is significantly improved when the number of transmit antennas increases.