43.63-Gbit/s Multiple-User SC-FDMA PON With Sub-Nyquist Receiver and PAPR Reduction

Chi Hsiang Lin*, Ruei Fang, Chun-Ting Lin, Chia Chien Wei, Sien Chi

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Scopus citations


In this letter, we propose a novel delay-division-multiplexing (DDM) scheme to enable SC-FDMA PON with a sub-Nyquist sampling rate ADC and lower PAPR, named time-interleaved FDMA (TI-FDMA). The proposed pre-processing method reduces the sampling rate of the ADC to 1/2 ∼ 1/32 of the Nyquist sampling rate. The FFT size can be reduced to 1/32 (i.e., from 1024 to 32) due to lower sampling ratio and each user just needs to recover and demodulate their corresponding data without any additional DSP, which greatly reduces the complexity of the receiver. Meanwhile, the proposed TI-FDMA has lower PAPR than traditional localized FDMA (L-FDMA), interleaved FDMA (I-FDMA), and OFDM. Such the PAPR reduction makes TI-FDMA support the modulation format of 1 order higher compared to OFDM, thereby, leading to 12.5% capacity improvement. Employing the proposed scheme, up to 43.63-Gbps PON is experimentally demonstrated, and each of 32 users requires only 0.5-GSample/s ADC.

Original languageEnglish
Article number8404107
Pages (from-to)1663-1666
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number19
StatePublished - 1 Oct 2018


  • Optical fiber communication
  • analog to digital convertor
  • digital signal processing
  • peak to average power ratio

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