A recent co-authored paper on symbol synchronization for optical OFDM systems has been accepted at publication at the 2014 Optical Fiber Communication Conference (OFC).
Rachid Bouziane, Peter A. Milder, Sean Kilmurray, Benn C. Thomsen, Stephan Pachnicke, Polina Bayvel, and Robert I. Killey. “Blind symbol synchronisation in direct-detection optical OFDM using virtual subcarriers.”
Abstract: We investigate the performance of a novel blind symbol synchronisation technique using a 30.65Gb/s real-time 16-QAM OFDM transmitter with direct detection. The proposed scheme exhibits low complexity and does not have any bandwidth overhead.