111Gb/s No-guard-interval OFDM using low sampling rate analogue-to-digital converter

We evaluate the OSNR tolerance of 111 Gb/s No-guard interval OFDM signal using low sampling rate analogue-to-digital converter. The back-to-back experiment shows that the OSNR penalty is less than 0.1 dB when using 1.4 times oversampling rate.