REVIEW 6 cited by
Flexible-Antenna Systems: A Pinching-Antenna Perspective
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
Flexible-antenna systems have recently received significant research interest due to their capability to reconfigure wireless channels intelligently. This paper focuses on a new type of flexible-antenna technology, termed pinching antennas, which can be realized by applying small dielectric particles on a waveguide. Analytical results are first developed for the simple case with a single pinching antenna and a single waveguide, where the unique feature of the pinching-antenna system to create strong line-of-sight links and mitigate large-scale path loss is demonstrated. An advantageous feature of pinching-antenna systems is that multiple pinching antennas can be activated on a single waveguide at no extra cost; however, they must be fed with the same signal. This feature motivates the application of non-orthogonal multiple access (NOMA), and analytical results are provided to demonstrate the superior performance of NOMA-assisted pinching-antenna systems. Finally, the case with multiple pinching antennas and multiple waveguides is studied, which resembles a classical multiple-input single-input (MISO) interference channel. By exploiting the capability of pinching antennas to reconfigure the wireless channel, it is revealed that a performance upper bound on the interference channel becomes achievable, where the achievability conditions are also identified. Computer simulation results are presented to verify the developed analytical results and demonstrate the superior performance of pinching-antenna systems.
Forward citations
Cited by 6 Pith papers
-
Performance Analysis of Pinching-Antenna Systems
Closed-form outage probability and average rate for pinching-antenna systems with waveguide losses, plus the optimal antenna position along the waveguide.
-
Beam Training for Pinching-Antenna Systems (PASS)
A three-stage hierarchical beam training method for pinching-antenna systems cuts training overhead from over a million scans to about 50 while keeping data rates near the phase-aligned upper bound.
-
Secure Pinching Antenna-aided ISAC
A pinching-antenna ISAC scheme that aligns antennas with users and targets, then optimizes beamforming and artificial noise, is claimed to outperform equidistant and fixed-array baselines by 3-30 dB in illumination power.
-
Joint Beamforming for NOMA Assisted Pinching Antenna Systems (PASS)
A NOMA-assisted pinching antenna system with jointly optimized antenna positions, transmit beamforming, and power allocation is simulated to reduce downlink transmit power by over 95% versus a fixed massive MIMO-NOMA ...
-
Graph Neural Network Enabled Pinching Antennas
A bipartite graph attention network (BGAT) solves the joint antenna placement and power allocation problem for pinching antennas to maximize downlink energy efficiency.
-
Analytical Optimization for Antenna Placement in Pinching-Antenna Systems
For fairness-based OMA, the optimal pinching-antenna location is the mean of users' x-coordinates and does not depend on their distance from the waveguide; for NOMA it moves exponentially toward the user nearest the w...
Discussion (0). Continue with ORCID to comment.