568 citations · 831 across the 93 of their papers we have counts for
10 papers · 2 filters
On the Performance of Physical Layer Security for Continuous-Aperture Array (CAPA) Systems
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
A continuous-aperture array (CAPA)-based secure transmission framework is proposed to enhance physical layer security. Continuous current distributions, or beamformers, are designe…
Optimal Beamforming for Multi-User Continuous Aperture Array (CAPA) Systems
Zhaolin Wang, Chongjun Ouyang, Yuanwei Liu
The optimal beamforming design for multi-user continuous aperture array (CAPA) systems is proposed. In contrast to conventional spatially discrete array (SPDA), the beamformer for…
Beamforming Optimization for Continuous Aperture Array (CAPA)-based Communications
Zhaolin Wang, Chongjun Ouyang, Yuanwei Liu
The beamforming optimization in continuous aperture array (CAPA)-based multi-user communications is studied. In contrast to conventional spatially discrete antenna arrays, CAPAs ca…
A Primer on Near-Field Communications for Next-Generation Multiple Access
Chongjun Ouyang, Zhaolin Wang, Yan Chen +2
Multiple-antenna technologies are advancing toward the development of extremely large aperture arrays and the utilization of extremely high frequencies, driving the progress of nex…
Performance Analysis of Physical Layer Security: From Far-Field to Near-Field
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
The secrecy performance in both near-field and far-field communications is analyzed using two fundamental metrics: the secrecy capacity under a power constraint and the minimum pow…
Continuous-Aperture Array (CAPA)-Based Wireless Communications: Capacity Characterization
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
The capacity limits of continuous-aperture array (CAPA)-based wireless communications are characterized. To this end, an analytically tractable transmission framework is establishe…