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Wireless Sensing via Pinching-Antenna Systems
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Wireless Sensing via Pinching-Antenna Systems
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A wireless sensing architecture via pinching antenna systems is proposed. Compared to conventional wireless systems, PASS offers flexible antenna deployment and improved probing performance for wireless sensing by leveraging dielectric waveguides and pinching antennas (PAs). To enhance signal reception, leaky coaxial (LCX) cables are used to uniformly collect echo signals over a wide area. The Cram\'er-Rao bound (CRB) for multi-target sensing is derived and then minimized through the joint optimization of the transmit waveform and the positions of PAs. To solve the resulting highly coupled, non-convex problem, a two-stage particle swarm optimization (PSO)-based algorithm is proposed. Numerical results demonstrate significant gains in sensing accuracy and robustness over conventional sensing systems, highlighting the benefits of integrating LCX-based reception with optimized PASS configurations.
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Cited by 1 Pith paper
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Center-Fed Pinching Antenna System (C-PASS): Modeling, Analysis, and Beamforming Design
A single-waveguide pinching-antenna system with multiple center-fed input ports achieves degree-of-freedom min(M,K) and power gain O(P_T M), breaking the rank-one bottleneck of conventional end-fed designs.
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