Simplified 27.15 Gbits/s Spread-OFDM PON using DFT/IDFT-free Receiver with 1/16 Sub-Nyquist Sampling Rate

Abstract

This paper presents 27.15-Gbits/s spread-OFMD PON sub-Nyquist receiver via 1GSampleis ADC for each 32-ONU to demodulate signals, which greatly reduces complexity. Moreover. DC algorithm is proposed to eliminate DC-located distortion caused by sub-Nyquist ADC.