Numerology Scheduling for PAPR Reduction in Mixed Numerologies

Memisoglu E., Duranay A. E., ARSLAN H.

IEEE Wireless Communications Letters, cilt.10, sa.6, ss.1197-1201, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 6
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1109/lwc.2021.3061628
  • Dergi Adı: IEEE Wireless Communications Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Sayfa Sayıları: ss.1197-1201
  • Anahtar Kelimeler: Peak to average power ratio, OFDM, Time-domain analysis, 5G mobile communication, Frequency division multiplexing, Bandwidth, Time-frequency analysis, OFDM, mixed numerologies, PAPR reduction, scheduling
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

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.