Low-complexity and high-performance receive beamforming for secure directional modulation networks against an eavesdropping-enabled full-duplex attacker

Dear editor,Directional modulation（DM）, as an advanced physical-layer security（PLS） transmission technique, is suitable for the line-of-sight（Lo S） propagation channel. In [1], the authors presented a DM technique that uses the phased arrays to generate modulation and provides security by deliberately distorting the received signals in other directions.