Temperature-Induced Carrier Frequency Offset Variability in LoRa Devices: An Experimental Study LoRa Cihazlarinda Sicakliǧa Baǧli Tasiyici Frekans Ofseti Deǧiskenliǧi: Deneysel Bir Calişma
34th Signal Processing and Communications Applications Conference, SIU 2026, İstanbul, Türkiye, 7 - 10 Temmuz 2026, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/siu71813.2026.11636612
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Anahtar Kelimeler: CFO, LoRa, RFF, Temperature
- Gazi Üniversitesi Adresli: Evet
Özet
Long Range (LoRa) has emerged as an enabling technology for Internet of Things (IoT) due to its long-range capability and cost-effectiveness whilst entailing cybersecurity challenges, motivating complementary mechanisms. Radio Frequency Fingerprinting (RFF) is a novel Physical Layer Security (PLS) mechanism exploiting inherent device-level impairments whose sensitivity to operating conditions remains insufficiently characterized in the literature. Carrier Frequency Offset (CFO) affects baseband signal integrity in LoRa systems. Uncompensated CFO causes phase rotation and frequency misalignment, degrading impairment-sensitive features and RFF performance. This work presents an empirical investigation of CFO dynamics under controlled temperature conditions to quantify CFO variability across thermal regimes. The results reveal temperature-dependent CFO instability, highlighting a fundamental challenge for data-driven RFF systems operating under realistic environmental conditions.