RHOSI: Efficient Anti-Jamming Resource Allocation with Holographic Surfaces in UAV-enabled ISAC

TL;DR

This paper presents RHOSI, a novel framework utilizing holographic surfaces on UAVs to dynamically optimize resource allocation and enhance anti-jamming capabilities in ISAC systems.

Contribution

It introduces a joint optimization strategy for beamforming, holographic surface configuration, and UAV deployment to improve jamming resistance in ISAC.

Findings

RHOSI significantly improves throughput under jamming.

The AO-based solution effectively handles complex optimization.

Simulation confirms enhanced robustness and reliability.

Abstract

This paper investigates the susceptibility of Integrated Sensing and Communication (ISAC) systems to hostile jamming, focusing on an aerial Reconfigurable Holographic Surface (RHS)-aided unmanned aerial vehicle (UAV). The proposed framework, termed RHOSI, enhances ISAC's resilience by dynamically shaping the wireless propagation environment. Specifically, RHOSI introduces a strategy to improve jamming resistance by jointly optimizing transmit beamforming at the hybrid base station, RHS phase shift configuration, and UAV spatial deployment, while ensuring the required echo signal-to-interference-plus-noise ratios for reliable sensing. The resulting non-linear optimization problem features highly coupled variables, which are decomposed into sub-problems and solved using an alternating optimization (AO) approach. Simulation results confirm the practicality and effectiveness of RHOSI in significantly improving the throughput and robustness of ISAC under adversarial jamming.