3 papers
cs.IT2026
Beamforming Optimization for Extremely Large-Scale RIS-Aided Near-Field Secure Communications
Xiaotong Xu, Qian Zhang, Yunxiao Li +3
This paper studies an extremely large-scale reconfigurable intelligent surface (XL-RIS)-aided near-field physical layer security (PLS) communication system, aiming to maximize the…
cs.IT2026
Secure Transmission for Fluid Antenna-Aided ISAC Systems
Yunxiao Li, Qian Zhang, Xuejun Cheng +4
Fluid antenna (FA) has become a highly promising technology and has recently been used to enhance the integrated sensing and communication (ISAC) system. However, the scenario wher…
cs.IT2026
Efficient Beamforming for Discrete SIM-Aided Multiuser Systems Under Statistical CSI
Yuhui Jiao, Qian Zhang, Xuejun Cheng +4
Stacked Intelligent Metasurfaces (SIM) have emerged as a revolutionary architecture for next-generation wireless communications, offering wave-domain signal processing capabilities…