Sum-Rate Optimization for RIS-Aided Dual-Polarized Integrated Sensing and Communication
A joint beamforming and reflection design for RIS-aided integrated sensing and communication that exploits the polarization domain: dual-polarized base-station arrays and a dual-polarized RIS double the effective antenna count without enlarging the array. The sum rate is maximized by a WMMSE reformulation with alternating optimization, majorization-minimization for the constant-modulus RIS coefficients, and a penalty-based closed-form beamformer, giving a low-complexity solution that outperforms polarization-agnostic ISAC designs.
RIS-Aided Integrated Sensing and Communication Systems under Dual-polarized Channels Dongnan Xia
A physical-layer design for reconfigurable intelligent surface (RIS)-aided integrated sensing and communication (ISAC) systems that, unlike prior work, exploits the polarization domain by using dual-…