Searcharxiv⌕ Search
Home/Archive/arXiv

arXiv · 2610.24415

Movable Antenna-Enabled Multi-Static Cooperative Secure ISAC: Architecture, Mechanisms, and Enabling Technologies

Yan Yang·Zhendong Li·Jianwei Zhao·Qingqing Wu·Lipeng Zhu·Weimin Jia·Wen Chen
View original source ↗Read source document ↗Export metadata ↓

Abstract

The broadcast nature of integrated sensing and communication (ISAC) signals exposes them to physical-layer security (PLS) threats, including eavesdropping and jamming. Conventional fixed-position antennas provide limited spatial flexibility under highly correlated legitimate, sensing, and adversarial channels, while multi-static cooperative ISAC offers distributed spatial diversity but remains vulnerable to information leakage. To address these limitations, this article proposes a novel movable antenna (MA)-enabled multi-static cooperative secure ISAC framework centered on dual-scale spatial reconfiguration. Specifically, continuous MA repositioning reshapes local propagation channels, while distributed multi-static nodes provide complementary network-level spatial diversity. Their synergy transforms local antenna geometry and distributed network geometry into a unified controllable spatial resource for jointly enhancing communication, sensing, and PLS. This article first presents the system architecture of the proposed framework and its representative application scenarios, followed by an analysis of the physical-layer mechanisms underlying the resulting gains. Subsequently, we elaborate on the key enabling technologies for practical deployment. A case study further demonstrates the communication-sensing-security trade-off and antenna-saving potential of the proposed framework. Finally, open challenges and future research directions are identified toward practical MA-enabled multi-static secure ISAC networks.

Explore related subjects

eess.SP

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Yan Yang, Zhendong Li, Jianwei Zhao, Qingqing Wu, Lipeng Zhu, Weimin Jia, Wen Chen. 2026-10-17. Movable Antenna-Enabled Multi-Static Cooperative Secure ISAC: Architecture, Mechanisms, and Enabling Technologies. https://arxiv.org/abs/2610.24415

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

arXiv2026

Curved HF Monopole Antennas for Improved Low-Angle Skywave Gain Over Lossy Ground

High-frequency (HF) skywave radars require high gain at elevation angles of 3 degrees to 30 degrees, where vertically-polarized monopoles over lossy land suffer from pseudo-Brewster cancellation. This letter shows that curving a long monopole creates a horizontally-polarized radiation channel much less affected by this cancellation. Closed-form bounds derived from the space-wave field over a homogeneous half-space show that the vertical-current field is suppressed below an elevation set by the soil permittivity, whereas the horizontally-polarized field of an elevated arc is nearly unaffected by the soil. Bayesian optimization (BO) of an analytical model, followed by 182 full-wave HFSS simulations with analytical Fresnel far-field post-processing, was used to design the element at 15 MHz. Over moist soil, a 15-m element with an 86 degrees arc is near-resonant (-25-dB match), 93% efficient, and 25% lower than a straight element of equal length. It raises the azimuth-averaged 3 degrees-30 degrees gain by 2.5 dB and, on every land ground considered, exceeds the 0.575λ straight monopole that is optimal over seawater and PEC by 1.0-2.6 dB.

eess.SP↗
arXiv2026

Dual Secure Sensing and Communications in MA-Enabled Networked ISAC Systems

Integrated sensing and communication (ISAC) is envisioned as a cornerstone technology for next-generation networks, yet it introduces significant security risks in both communication and sensing domains. To mitigate the coverage limitations inherent in conventional mono-static or bi-static setups, this paper proposes a networked ISAC framework empowered by movable antennas (MAs). By leveraging flexible antenna reconfiguration, MAs provide additional spatial degrees of freedom to significantly boost beamforming gain and interference suppression. Specifically, we investigate a novel dual-domain security paradigm where networked base stations collaboratively protect uplink (UL) and downlink (DL) transmissions from communication eavesdropping while simultaneously safeguarding target sensing data against sensing eavesdroppers (SEs). To this end, we formulate a joint optimization problem to maximize the sum of secrecy rates, subject to sensing requirements, SE eavesdropping probability constraint, and practical MA deployment constraints, by jointly optimizing receive combiners, transmit beamformers, UL power allocation, and MA positions. To address this non-convex problem with highly coupled variables, an efficient alternating optimization algorithm is proposed, integrating closed-form solutions for receive combiners, successive convex approximation for transmit beamforming and UL power, and a tailored sensing-aware multi-candidate particle swarm optimization for the high-dimensional MA positioning. Extensive numerical results validate the effectiveness of the proposed algorithms, demonstrating that the proposed MA-enabled networked cooperative ISAC design significantly outperforms conventional fixed-position antenna-based designs in terms of security performance, while achieving notable power- and antenna-saving gains.

eess.SP↗
arXiv2026

Performance Analysis of Discrete-Activation Pinching-Antenna Systems

This paper investigates discrete-activation pinching antenna (DAPA) systems, where a finite set of pinching antennas (PAs) is deployed along a dielectric waveguide, from which PAs are selectively activated to serve users. Performance analyses are developed for both orthogonal multiple access (OMA) and non-orthogonal multiple access (NOMA) by explicitly accounting for the system geometry and discrete PA activation. Specifically, analytical expressions for the outage probability (OP) and ergodic rate (ER) are derived. Furthermore, the discrete-to-continuous gain ratio (DCGR) is introduced to quantify the normalized ER gain of a finite PA deployment relative to the single-PA and continuous-activation references. Monte Carlo simulations validate the derived expressions and show that DAPA systems can closely approach continuous-activation performance with only a moderate number of candidate PAs. For example, under the considered setup, DAPA with five PAs recovers approximately 92% and 90% of the continuous-activation ER gain under OMA and NOMA, respectively, at a transmit power of 0 dBm.

eess.SP↗