# Pinching-Antenna System (PASS)-enabled Multicast Communications

arXiv: https://arxiv.org/abs/2502.16624 · HTML: https://mlsanity.com/paper/2502.16624/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 23 Feb 2025.

## Built on by (most cited first, 1 of 1)

- [PASS-Enhanced MEC: Joint Optimization of Task Offloading and Uplink PASS Beamforming](https://mlsanity.com/paper/2510.22948/) (2025)

## Abstract (arXiv)

Pinching-antenna system (PASS) is a novel flexible-antenna technology, which employs long-spread waveguides to convey signals with negligible path loss and pinching antennas (PAs) with adjustable positions to radiate signals from the waveguide into the free space. Therefore, short-distance and strong line-of-sight transmission can be established. In this paper, a novel PASS-enabled multicast communication framework is proposed, where multiple PAs on a single waveguide radiate the broadcast signals to multiple users. The multicast performance maximization problem is formulated to optimize the positions of all PAs. To address this non-convex problem, a particle swarm optimization-based algorithm is developed. Numerical results show that PASS can significantly outperform the conventional multiple-antenna transmission.