Exploiting Pinching Antenna Systems in NOMA Covert Communication Networks
Abstract
Pinching antenna systems (PASS) provide flexible transmitter-side radiation reconfiguration for high-frequency wireless communications. This paper applies PASS to non-orthogonal multiple access (NOMA) covert communication networks, where activated pinching antennas (PAs) transmit superimposed signals to a pair of users stochastically distributed within a rectangle. Two passive wardens respectively monitor the downlink transmissions intended for two users. More specifically, we derive the closed-form detection error probability (DEP) expressions for two wardens under bounded noise uncertainty. Then we analytically determine the optimal detection thresholds and minimum DEPs in the worst-case covert detection scenarios. The covert transmission rates of two users are further characterized by taking into consideration ideal successive interference cancellation and non-ideal successive interference cancellation at near user and intra-NOMA interference at far user. Numerical results are presented to confirm that: 1) PASS-NOMA is capable of providing higher covert rates relative to conventional orthogonal multiple access OMA schemes; 2) As the number of activated PAs begun to increase, the near user has ability to obtain a larger covert rate gain than far user; and 3) The DEP of PASS-NOMA networks is larger than that of both PASS-OMA and traditional antenna based NOMA in specific output power regions.
Related
- Pinching Antenna-Assisted Full-Duplex Communication Systems
- Pinching-Antenna-Enabled ISAC: A Unified Architecture for Flexible Communication and Sensing
- Impact of Antenna Position Errors on TDMA and NOMA in Pinching-Antenna Systems
- S-PASS: Star-Topology Pinching-Antenna Systems with Pipelined Antenna Pre-Positioning
- Secrecy Sum-Rate Maximization for RSMA-Enabled Pinching-Antenna Systems
BibTeX
@misc{yue2026exploiting,
title = {{Exploiting Pinching Antenna Systems in NOMA Covert Communication Networks}},
author = {Xinwei Yue and Hao Li and Jingjing Zhao and Xianfu Lei and Yuanwei Liu},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.29433},
eprint = {2610.29433},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.29433},
}
RIS
TY - UNPB
TI - Exploiting Pinching Antenna Systems in NOMA Covert Communication Networks
AU - Xinwei Yue
AU - Hao Li
AU - Jingjing Zhao
AU - Xianfu Lei
AU - Yuanwei Liu
PY - 2026
DA - 2026/10/27
PB - arXiv
DO - 10.48550/arxiv.2610.29433
UR - https://arxiv.org/abs/2610.29433
AB - Pinching antenna systems (PASS) provide flexible transmitter-side radiation reconfiguration for high-frequency wireless communications. This paper applies PASS to non-orthogonal multiple access (NOMA) covert communication networks, where activated pinching antennas (PAs) transmit superimposed signals to a pair of users stochastically distributed within a rectangle. Two passive wardens respectively monitor the downlink transmissions intended for two users. More specifically, we derive the closed-form detection error probability (DEP) expressions for two wardens under bounded noise uncertainty. Then we analytically determine the optimal detection thresholds and minimum DEPs in the worst-case covert detection scenarios. The covert transmission rates of two users are further characterized by taking into consideration ideal successive interference cancellation and non-ideal successive interference cancellation at near user and intra-NOMA interference at far user. Numerical results are presented to confirm that: 1) PASS-NOMA is capable of providing higher covert rates relative to conventional orthogonal multiple access OMA schemes; 2) As the number of activated PAs begun to increase, the near user has ability to obtain a larger covert rate gain than far user; and 3) The DEP of PASS-NOMA networks is larger than that of both PASS-OMA and traditional antenna based NOMA in specific output power regions.
ER -