The internet of signage communication for reliability improvement in the OFDM system. - Ji-Hwan Kim; Won-Chang Kim; Jong-Gyu Ha; Hyoung-Kyu Song 001 (ICCIP, 2017)

An Enhanced Transceiver Structure for Higher Performances in MIMO-OFDM Systems. - Jae-Hyun Ro; Jong-Gyu Ha; Hyoung-Kyu Song 001 (IEEE Access, 2018)

An Efficient Precoding Method for Improved Downlink Massive MIMO System. - Jae-Hyun Ro; Won-Seok Lee; Jong-Gyu Ha; Hyoung-Kyu Song 001 (IEEE Access, 2019)