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Low-complexity tuning of pinching-antenna systems for integrated sensing and communication

Saba Asaad, Chongjun Ouyang, Zhiguo Ding, Ali Bereyhi

Abstract

Pinching antenna systems (PASSs) can dynamically adapt their transmit and receive arrays for sensing and communication in wireless systems. This work explores the potential of PASSs for integrated sensing and communication (ISAC) by proposing a novel PASS-aided ISAC design, in which pinching locations are adaptively adjusted to enable simultaneous sensing and data transmission with minimal interference. The proposed design introduces a bi-partitioning strategy that allocates sensing power and tunes pinching locations with remarkably low computational complexity, allowing dynamic PASS tuning at high update rates. Numerical results demonstrate that the proposed approach achieves a significantly larger sensing-communication rate region compared to baseline designs at no noticeable cost.

Low-complexity tuning of pinching-antenna systems for integrated sensing and communication

Abstract

Pinching antenna systems (PASSs) can dynamically adapt their transmit and receive arrays for sensing and communication in wireless systems. This work explores the potential of PASSs for integrated sensing and communication (ISAC) by proposing a novel PASS-aided ISAC design, in which pinching locations are adaptively adjusted to enable simultaneous sensing and data transmission with minimal interference. The proposed design introduces a bi-partitioning strategy that allocates sensing power and tunes pinching locations with remarkably low computational complexity, allowing dynamic PASS tuning at high update rates. Numerical results demonstrate that the proposed approach achieves a significantly larger sensing-communication rate region compared to baseline designs at no noticeable cost.
Paper Structure (13 sections, 47 equations, 2 figures, 2 algorithms)

This paper contains 13 sections, 47 equations, 2 figures, 2 algorithms.

Table of Contents

  1. Introduction
  2. System Model and Problem Formulation
  3. Downlink PASS-ISAC
  4. Uplink PASS-ISAC
  5. Communication and Sensing Metrics
  6. Downlink ISAC
  7. Uplink ISAC
  8. ISAC System Design
  9. PASS Design for Downlink ISAC
  10. PASS Design for Uplink ISAC
  11. Complexity and Convergence
  12. Numerical Results
  13. Conclusions

Figures (2)

  • Figure 1: Weighted rate vs. the side length $D_x$ and the number of elements in downlink and uplink.
  • Figure 2: Uplink ISAC rate region for side length $D_x=40$.