Abushattal, AbdelrahmanZegrar, Salah EddineYazgan, AyhanArslan, Hüseyin2023-01-202023-01-202023Abushattal, A., Zegrar, S. E., Yazgan, A. ve Arslan, H. (2023). A comprehensive experimental emulation for OTFS waveform RF-Impairments. Sensors, 23(1). https://dx.doi.org/10.3390/s230100381424-8220https://dx.doi.org/10.3390/s23010038https://hdl.handle.net/20.500.12511/10342The orthogonal time-frequency space (OTFS) waveform exceeds the challenges that face orthogonal frequency division multiplexing (OFDM) in a high-mobility environment with high time-frequency dispersive channels. Since radio frequency (RF) impairments have a direct impact on waveform behavior, this paper investigates the experimental implementation of RF-impairments that affect OTFS waveform performance and compares them to the OFDM waveform as a benchmark. Firstly, the doubly-dispersive channel effect is analyzed, and then an experimental framework is established for investigating the impact of RF-impairments, including non-linearity, carrier frequency offset (CFO), I/Q imbalances, DC-offset, and phase noise are considered. The experiments were conducted in a real indoor wireless environment using software-defined radio (SDR) at carrier frequencies of (Formula presented.) GHz and 5 GHz based on the Keysight EXG X-Series devices. The comparison of the performances of OFDM and OTFS in the presence of RF-impairments reveals that OTFS significantly outperforms OFDM.enAttribution 4.0 Internationalinfo:eu-repo/semantics/openAccessOTFSOFDMRF-ImpairmentsI/Q ImbalancesDC-OffsetPhase NoiseCarrier Frequency OffsetArticle23110.3390/s23010038Q20009096575000012-s2.0-8514597359136616636Q1