用图神经网络定位干扰源,提升无线安全防护能力。
Graph Neural Networks for Jamming Source Localization
- 将干扰源定位转化为图回归任务,融合局部与全局信号特征。
- 在稀疏信号环境下定位精度显著优于传统方法。
- 适合无线网络安全、信号处理等领域研究者参考。
基于图的学习为建模复杂关系结构提供了强大框架,但在无线安全领域的应用仍严重不足。本文首次将图学习应用于干扰源定位,应对无线网络中日益严峻的干扰攻击威胁。不同于在环境不确定性和密集干扰下表现不佳的几何优化方法,我们将其重构为归纳式图回归任务。所提方法整合了编码局部与全局信号聚合的结构化节点表示,确保空间一致性与自适应信号融合。为增强鲁棒性,引入注意力机制的图神经网络,自适应调整邻域影响,并设计置信度引导的估计机制,动态平衡学习预测与领域先验知识。我们在多种射频(RF)环境条件下评估,涵盖不同采样密度、网络拓扑、干扰源特性及信号传播条件,并对图构建、特征选择和池化策略进行了全面消融研究。结果表明,该新型图学习框架在稀疏与隐蔽信号场景中显著优于现有定位基线。代码已开源:https://github.com/tiiuae/gnn-jamming-source-localization。
原文摘要 · Abstract (English)
Graph-based learning provides a powerful framework for modeling complex relational structures; however, its application within the domain of wireless security remains significantly underexplored. In this work, we introduce the first application of graph-based learning for jamming source localization, addressing the imminent threat of jamming attacks in wireless networks. Unlike geometric optimization techniques that struggle under environmental uncertainties and dense interference, we reformulate the localization as an inductive graph regression task. Our approach integrates structured node representations that encode local and global signal aggregation, ensuring spatial coherence and adaptive signal fusion. To enhance robustness, we incorporate an attention-based \ac{GNN} that adaptively refines neighborhood influence and introduces a confidence-guided estimation mechanism that dynamically balances learned predictions with domain-informed priors. We evaluate our approach under complex \ac{RF} environments with various sampling densities, network topologies, jammer characteristics, and signal propagation conditions, conducting comprehensive ablation studies on graph construction, feature selection, and pooling strategies. Results demonstrate that our novel graph-based learning framework significantly outperforms established localization baselines, particularly in challenging scenarios with sparse and obfuscated signal information. Our code is available at https://github.com/tiiuae/gnn-jamming-source-localization.
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