A survey on OFDM physical layer security

OFDM/OQAM transmission with improved physical layer security

Wireless Physical Layer Security Schemes Using Random Phases for MIMO-OFDM Communications and Its Security Rate Analysis

Physical layer security of MIMO–OFDM systems by beamforming and artificial noise generation

Joint Subcarrier Mapping with Relay Selection-Based Physical Layer Security Scheme for OFDM System

Beamforming Technique for Improving Physical Layer Security in an MIMO-OFDM Wireless Channel

Survey on physical layer security for 5G wireless networks