Regulatory-Aware Synthetic Spectrum Generation for LoRa and IEEE 802.15.4g Coexistence
Résumé
The rapid growth of low power wide area networks (LPWANs) in unlicensed industrial, scientific, and medical (ISM) bands has significantly increased spectrum congestion, raising new challenges for coexistence monitoring and regulatory compliance. Existing datasets and simulators are largely designed for communication performance evaluation and lack the temporal continuity, regulatory context, and non-compliant behaviors required for spectrum enforcement tasks. This paper introduces a regulatoryaware, cross-layer spectrum simulator for the coexistence of long range (LoRa) and IEEE 802.15.4g systems in the 868 MHz band. The proposed framework generates continuous-time complex baseband I/Q sequences driven by stochastic traffic models and constrained by ETSI regulations. It combines PHY-accurate waveform synthesis with realistic channel effects and explicitly injects regulatory violations, including bandwidth, duty cycle, outof-band emissions, and power exceedance. Our proposed simulator, SynSpec-EU868, produces labeled spectrum snapshots suitable for training data-driven spectrum monitoring and compliance detection models, providing a practical tool for next-generation regulatory-aware sensing systems.
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