TY - JOUR
T1 - Secrecy Analysis of MIMO Wiretap Channels with Low-Complexity Receivers under Imperfect Channel Estimation
AU - Al-Qahtani, Fawaz S.
AU - Huang, Yuzhen
AU - Hessien, Salah
AU - Radaydeh, Redha M.
AU - Zhong, Caijun
AU - Alnuweiri, Hussein M.
N1 - Publisher Copyright:
© 2005-2012 IEEE.
PY - 2017/2
Y1 - 2017/2
N2 - This paper studies the achievable secrecy performance of multiple-input multiple-output wiretap channels in the presence of imperfect channel state information (CSI) with practical low-complexity transmission schemes. In particular, we propose a general order transmit antenna selection and power-efficient output-threshold maximal ratio combining scheme. Two separate cases depending on the availability of the eavesdropper's CSI at the transmitter are considered. New closed-form expressions of the secrecy outage probability and the average secrecy rate are obtained. In addition, the secrecy diversity order and array gains, high signal-to-noise ratio slope, and power offset are characterized through asymptotic analysis, which enables the characterization of the effect of imprecise transmit antenna selection, output-threshold, and imperfect CSI on the secrecy performance. Numerical results are presented to validate the main outcomes of this paper.
AB - This paper studies the achievable secrecy performance of multiple-input multiple-output wiretap channels in the presence of imperfect channel state information (CSI) with practical low-complexity transmission schemes. In particular, we propose a general order transmit antenna selection and power-efficient output-threshold maximal ratio combining scheme. Two separate cases depending on the availability of the eavesdropper's CSI at the transmitter are considered. New closed-form expressions of the secrecy outage probability and the average secrecy rate are obtained. In addition, the secrecy diversity order and array gains, high signal-to-noise ratio slope, and power offset are characterized through asymptotic analysis, which enables the characterization of the effect of imprecise transmit antenna selection, output-threshold, and imperfect CSI on the secrecy performance. Numerical results are presented to validate the main outcomes of this paper.
KW - diversity order
KW - estimation error
KW - MIMO
KW - OT-MRC
KW - Physical layer security
UR - http://www.scopus.com/inward/record.url?scp=85027402150&partnerID=8YFLogxK
U2 - 10.1109/TIFS.2016.2604490
DO - 10.1109/TIFS.2016.2604490
M3 - Article
AN - SCOPUS:85027402150
SN - 1556-6013
VL - 12
SP - 257
EP - 270
JO - IEEE Transactions on Information Forensics and Security
JF - IEEE Transactions on Information Forensics and Security
IS - 2
ER -