5 papers
Bending the Rules of Propagation: Caustic Beamforming for Next-Generation Wireless Systems
Shicong Liu, Xianghao Yu, Robert Schober
Conventional beamforming techniques primarily steer energy along desired directions or focus it at specific locations. These techniques become fragile when facing frequent blockage…
Throughput Analysis for Near-Field Mobile Communications: Beamfocusing or Caustic Beamforming?
Jiannan Wang, Xianghao Yu, Robert Schober
The migration to the Terahertz (THz) band and the deployment of extremely large antenna arrays (ELAAs) are transitioning wireless communications into the radiative near-field regim…
On the Impact of Pinching Antennas on Traffic Offloading
Zhiguo Ding, Robert Schober, H. Vincent Poor
Pinching antennas are characterized by their capability to create strong line-of-sight connections and realize multi-antenna systems in a flexible manner. Existing works have demon…
Robust and Secure Near-Field Communication via Curved Caustic Beams
Shicong Liu, Xianghao Yu, Robert Schober
Near-field beamfocusing with extremely large aperture arrays can effectively enhance physical layer security. Nevertheless, even small estimation errors of the eavesdropper's locat…
Exploiting Segmented Waveguide-Enabled Pinching-Antenna Systems (SWANs) for Uplink Tri-Hybrid Beamforming
Hao Jiang, Chongjun Ouyang, Zhaolin Wang +4
A segmented waveguide-enabled pinching-antenna system (SWAN)-based tri-hybrid beamforming architecture is proposed for uplink multi-user MIMO communications, which jointly optimize…