Anti-Jamming Sensing with Distributed Reconfigurable Intelligent Metasurface Antennas

• URL: http://arxiv.org/abs/2508.04964v1
• Date: Thu, 07 Aug 2025 01:33:38 GMT
• Title: Anti-Jamming Sensing with Distributed Reconfigurable Intelligent Metasurface Antennas
• Authors: Zhaowei Wang, Yunsong Huang, Weicheng Liu, Hui-Ming Wang,
• Abstract summary: The sensing accuracy of traditional RF sensing methods is often affected by adverse propagation channels from the transmitter to the receiver, such as fading and noise.<n>In this paper, we propose employing distributed Reconfigurable Intelligent Meta Antennas (RIMSA) to detect the presence and location of objects.<n>We introduce a deep reinforcement learning (DRL) algorithm aimed at calculating the optimal beamforming patterns and a neural network aimed at converting received signals into sensing outcomes.
• Score: 11.159180009266489
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The utilization of radio frequency (RF) signals for wireless sensing has garnered increasing attention. However, the radio environment is unpredictable and often unfavorable, the sensing accuracy of traditional RF sensing methods is often affected by adverse propagation channels from the transmitter to the receiver, such as fading and noise. In this paper, we propose employing distributed Reconfigurable Intelligent Metasurface Antennas (RIMSA) to detect the presence and location of objects where multiple RIMSA receivers (RIMSA Rxs) are deployed on different places. By programming their beamforming patterns, RIMSA Rxs can enhance the quality of received signals. The RF sensing problem is modeled as a joint optimization problem of beamforming pattern and mapping of received signals to sensing outcomes. To address this challenge, we introduce a deep reinforcement learning (DRL) algorithm aimed at calculating the optimal beamforming patterns and a neural network aimed at converting received signals into sensing outcomes. In addition, the malicious attacker may potentially launch jamming attack to disrupt sensing process. To enable effective sensing in interferenceprone environment, we devise a combined loss function that takes into account the Signal to Interference plus Noise Ratio (SINR) of the received signals. The simulation results show that the proposed distributed RIMSA system can achieve more efficient sensing performance and better overcome environmental influences than centralized implementation. Furthermore, the introduced method ensures high-accuracy sensing performance even under jamming attack.

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