A novel OBI noise reduction technique by using similar-OBI estimation in optical multiple access uplink. - Hyoung Joon Park; Chang-Hoon Kim; Sun-Young Jung; Sang-Kook Han (ICTON, 2017)

Hexagonal QAM-Based Four-Dimensional AMO-OFDM for Spectrally Efficient Optical Access Network Transmission. - Hyoung Joon Park; Soo-Min Kang; Inho Ha; Sang-Kook Han (IEEE Access, 2019)

Multiple Access Noise Compensation in CO-OFDMA-PON Uplink Transmission Using Digital Phase Conjugated-Pilot Tones. - Soo-Min Kang; Hyoung Joon Park; Inho Ha; Sang-Kook Han (IEEE Access, 2020)