Numerology scheduling for PAPR reduction in mixed numerologies
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CitationMemişoğlu, E., Duranay, A. E. ve Arslan, H. (2021). Numerology scheduling for PAPR reduction in mixed numerologies. IEEE Wireless Communications Letters, 10(6), 1197-1201. https://dx.doi.org/10.1109/LWC.2021.3061628
The flexible mixed-numerology structure with orthogonal frequency division multiplexing (OFDM) waveform is a key enabler to meet the requirements of various applications in fifth-generation (5G) and beyond wireless networks. However, the high peak-to-average power ratio (PAPR) is still one of the main drawbacks and conventional numerology selection can only provide PAPR reduction for the time-domain numerology multiplexing. In this letter, a novel numerology scheduling (NS) method is proposed to provide PAPR reduction for both time-domain and frequency-domain numerology multiplexing scenarios. For the proposed method, the signal with minimum PAPR is selected from a set of signals with different NS. The simulation results and complexity analysis demonstrate that the proposed method with a linearithmic complexity improves PAPR reduction compared to conventional numerology selection.