77 citations · 112 across the 12 of their papers we have counts for
10 papers · 1 filter
Secure Multiuser Beamforming With Movable Antenna Arrays
Zhenqiao Cheng, Chongjun Ouyang, Boqun Zhao +1
A movable antenna (MA)-enabled secure multiuser transmission framework is developed to enhance physical-layer security. Novel expressions are derived to characterize the achievable…
Downlink and Uplink ISAC in Continuous-Aperture Array (CAPA) Systems
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +2
A continuous-aperture array (CAPA)-based integrated sensing and communications (ISAC) framework is proposed for both downlink and uplink scenarios. Within this framework, continuou…
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…
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…
Channel Capacity of Near-Field Line-of-Sight Multiuser Communications
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
The channel capacity of near-field (NF) communications is characterized by considering three types of line-of-sight multiuser channels: i) multiple access channel (MAC), ii) broadc…
On the Impact of Reactive Region on the Near-Field Channel Gain
Chongjun Ouyang, Zhaolin Wang, Boqun Zhao +2
The near-field channel gain is analyzed by considering both radiating and reactive components of the electromagnetic field. Novel expressions are derived for the channel gains of s…
Performance Analysis of Holographic MIMO Based Integrated Sensing and Communications
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
A holographic multiple-input multiple-output (MIMO)-based integrated sensing and communications (ISAC) framework is proposed for both downlink and uplink scenarios. The spatial cor…
Modeling and Analysis of Near-Field ISAC
Boqun Zhao, Chongjun Ouyang, Yuanwei Liu +2
As the technical trends for the next-generation wireless network significantly extend the near-field region, a performance reevaluation of integrated sensing and communications (IS…
Downlink and Uplink NOMA-ISAC with Signal Alignment
Boqun Zhao, Chongjun Ouyang, Xingqi Zhang +1
Integrated Sensing and Communications (ISAC) surpasses the conventional frequency-division sensing and communications (FDSAC) in terms of spectrum, energy, and hardware efficiency,…