全双工目的端加扰安全传输系统中的天线模式切换

Yuanjian Li, Rui Zhao, Xing Tan, Zhiqiao Nie

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate the secrecy rate optimization problem in a wiretap channel with a single-antenna source, a single-antenna eavesdropper, and a multiple-antenna full-duplex (FD) destination. We design a near-optimal joint optimization algorithm by jointly applying the dynamic antenna mode switching (AMS) and optimal power allocation (OPA) techniques, to maximize the secrecy rate of FD destination-based jamming (DBJ) system. Specifically, a closed-form of OPA factor is first derived using global instantaneous channel state information (CSI), and then the optimal transmit and receive antennas sets at the destination are determined by combining the OPA factor and applying a greedy search-based approach. Simulation results verify the secrecy performance superiority of the proposed algorithm over the traditional FD-DBJ method.
Original languageChinese (Simplified)
Pages (from-to)457-464
JournalJournal of Signal Processing
Volume34
Issue number4
DOIs
Publication statusPublished - 25 Apr 2018
Externally publishedYes

Keywords

  • physical layer security
  • antenna mode switching
  • full-duplex
  • destination-based jamming
  • optimal power allocation

Cite this