REVIEW 6 cited by
Analytical Optimization for Antenna Placement in Pinching-Antenna Systems
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
Analytical Optimization for Antenna Placement in Pinching-Antenna Systems
read the original abstract
As the main issue in pinching-antenna system design, antenna location optimization is key to realizing channel reconfigurability and system flexibility. Most existing works in this area adopt sophisticated optimization and learning tools to identify the optimal antenna locations in a numerical manner, where insightful understandings of the pinching antenna placement are still missing. Motivated by this research gap, this paper aims to carry out analytical optimization for pinching antenna placement, where closed-form solutions for the optimal antenna locations are obtained to reveal the impact of antenna placement on the system performance. In particular, for the user-fairness-oriented orthogonal multiple access (OMA) based transmission, analytical results are obtained to reveal that the pinching antenna needs to be activated at the place that would be beneficial to all served users; however, the users' distances to the waveguide have no impact on the location selection. For the greedy-allocation-based OMA transmission, an asymptotic study based on a high signal-to-noise ratio approximation is carried out to show that the optimal antenna location is in close proximity to the user who is nearest to the waveguide. For non-orthogonal multiple access (NOMA) based transmission, even with a user-fairness-oriented objective, the obtained analytical results show that the optimal antenna location is not the position that can benefit all users, but rather is near the user positioned closest to the waveguide.
Forward citations
Cited by 6 Pith papers
-
Spectral and Energy Efficiency Tradeoff for Pinching-Antenna Systems
Develops two-stage optimization for single-user and alternating optimization for multi-user pinching-antenna systems, proving position independence from beamforming and algorithm convergence while showing SE-EE gains ...
-
On the Impact of Pinching Antennas on Traffic Offloading
Pinching antennas support traffic offloading via optimized transmit powers and antenna locations, yielding low energy consumption and balanced cell resource use.
-
Signal Processing Foundations of Reconfigurable Antennas in the Tri-Hybrid MIMO Architecture
A unified model for tri-hybrid MIMO incorporates reconfigurable antennas, introduces the reconfigurability efficiency factor metric, and shows electromagnetic reconfiguration couples the channel and precoder.
-
Leaky-Coaxial Pinching-Antenna System with Adjustable Slot Apertures
Leaky-coaxial pinching-antenna systems with continuous slot aperture adjustment achieve higher sum rates and lower outage probabilities than binary activation or fixed antennas by using quadratic-transform optimizatio...
-
Waveguide to Meaning: Semantic-Aware NOMA for Pinching-Antenna Systems
Semantic-aware NOMA in pinching-antenna systems yields higher semantic spectral efficiency than fixed-antenna baselines while satisfying bit-user QoS constraints.
-
Pinching-Antenna System Design with LoS Blockage: Does In-Waveguide Attenuation Matter?
Under realistic LoS blockage, ignoring in-waveguide attenuation costs only about α^2/(β ln2) bps/Hz in large dense-blockage areas, but the loss grows with area squared when blockages are sparse.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.