A Stochastic Geometric Analysis on Multi-cell Pinching-antenna Systems under Blockage Effect

2025-10-08

AI Summary

Existing pinching-antenna studies are confined to single-cell scenarios and neglect multi-base-station spatial deployment and inter-cell waveguide interference. Method: This paper establishes, for the first time, a stochastic geometry-based analytical framework for multi-cell pinching-antenna systems. It models waveguide channels from spatially distributed base stations, jointly incorporating blockage effects and waveguide propagation characteristics to derive a closed-form expression for the outage probability. The approach integrates stochastic geometric modeling, waveguide interference analysis, and rigorous mathematical derivation, validated via Monte Carlo simulations. Contribution/Results: The proposed model significantly enhances system robustness against blockages and achieves superior outage performance compared to conventional fixed-antenna systems. It fills a critical theoretical gap in inter-cell interference modeling and performance evaluation for multi-cell pinching-antenna networks.

Technology Category

• Planning, Routing, and Scheduling: Optimization of Spatio-temporal Systems
• Reasoning under Uncertainty: Stochastic Optimization
• Multiagent Systems: Other Foundations of Multi Agent Systems

Application Category

• Security and Privacy: Large-scale security measurements
• Systems and Infrastructure for Web, Mobile and WoT: Web performance, measurement, and characterization
• Graph Algorithms and Modeling for the Web: Efficient manipulation of static and dynamic Web-related graphs

Abstract

Recently, the study on pinching-antenna technique has attracted significant attention. However, most relevant literature focuses on a single-cell scenario, where the effect from the interfering pinching-antennas on waveguides connected to spatially distributed base stations (BSs) was ignored. To fulfill this knowledge gap, this letter aims to provide an analytical framework on performance evaluation for multi-cell pinching-antenna systems where spatially distributed waveguides which are connected to different BSs are considered. In particular, tools from stochastic geometry is applied for system modeling. The expression for the outage probability is obtained. Simulation results are provided to verify the accuracy of the analysis and demonstrate the superior performance of pinching-antenna system compared to fixed-antenna systems.

Problem

• Analyzing multi-cell pinching-antenna systems with blockage effects
• Evaluating performance of distributed waveguides across base stations
• Deriving outage probability using stochastic geometry modeling

Innovation

• Developed multi-cell pinching-antenna analytical framework
• Applied stochastic geometry for system modeling
• Analyzed outage probability with blockage effects