Secrecy Analysis of MIMO Wiretap Channels With Low-Complexity Receivers Under Imperfect Channel Estimation uri icon

abstract

  • 2005-2012 IEEE. 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.

published proceedings

  • IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY

author list (cited authors)

  • Al-Qahtani, F. S., Huang, Y., Hessien, S., Radaydeh, R. M., Zhong, C., & Alnuweiri, H. M.

citation count

  • 22

complete list of authors

  • Al-Qahtani, Fawaz S||Huang, Yuzhen||Hessien, Salah||Radaydeh, Redha M||Zhong, Caijun||Alnuweiri, Hussein M

publication date

  • February 2017