Large intelligent surfaces arise as an emerging technology and critical building block for
sixth-generation (6G) wireless networks. Reconfigurable holographic surfaces (RHSs) have
been attracting significant attention recently as active antenna arrays with the capability of
forming narrow beams at low cost and complexity. This paper introduces the directional
modulation (DM) concept for RHS, where a large number of elements are exploited to
control not only the signal's power at the receiver but also its phase. Thus, a novel DM …

Large intelligent surfaces arise as an emerging technology and critical building block for
sixth generation (6G) wireless networks. Reconfigurable holographic surfaces (RHSs) have
been attracting significant attention recently as active antenna arrays with the capability of
forming narrow beams at low cost and complexity. This paper introduces the directional
modulation (DM) concept for RHS, where a large number of elements is exploited to control
not only the signal's power at the receiver but also its phase. Thus, a novel DM algorithm is …