7 papers
CMT-Aware Channel Modeling and Transmit-Power Minimization for Pinching-Antenna Systems
Chuang Luo, Gui Zhou, Vasilis K. Papanikolaou +2
This letter investigates transmit-power minimization for multiuser pinching-antenna system (PAS) from a coupled-mode-theory (CMT)-aware perspective. Existing CMT-based pinching ant…
V-RIS: Virtual-Aperture DoA Estimation with Sparse RIS
Fenghao Zheng, Fuhai Wang, Zihan Jin +3
Large-aperture reconfigurable intelligent surfaces (RISs) enable high-resolution 2D direction-of-arrival (DoA) estimation, but existing approaches still tie hardware cost and contr…
Energy-Efficient Design for Downlink Pinching-Antenna Systems with QoS Guarantee
Ming Zeng, Ji Wang, Gui Zhou +2
Pinching antennas have recently garnered significant attention due to their ability to dynamically reconfigure wireless propagation environments. Despite notable advancements in th…
Resolving the Double Near-Far Problem via Wireless Powered Pinching-Antenna Networks
Vasilis K. Papanikolaou, Gui Zhou, Brikena Kaziu +4
This letter introduces a novel wireless powered communication system, referred to as a wireless powered pinching-antenna network (WPPAN), utilizing a single waveguide with pinching…
Channel Estimation for mmWave Pinching-Antenna Systems
Gui Zhou, Vasilis Papanikolaou, Zhiguo Ding +1
The full potential of pinching-antenna systems (PAS) can be unblocked if pinching antennas can be accurately activated at positions tailored for the serving users', which means tha…
Radar Rainbow Beams For Wideband mmWave Communication: Beam Training And Tracking
Gui Zhou, Moritz Garkisch, Zhendong Peng +2
We propose a novel integrated sensing and communication (ISAC) system that leverages sensing to assist communication, ensuring fast initial access, seamless user tracking, and unin…
User Tracking and Direction Estimation Codebook Design for IRS-Assisted mmWave Communication
Moritz Garkisch, Sebastian Lotter, Gui Zhou +2
Future communication systems are envisioned to employ intelligent reflecting surfaces (IRSs) and the millimeter wave (mmWave) frequency band to provide reliable high-rate services.…