Advanced Hybrid OFDM System with Multi-Layer TDD Architecture. - Su-Jung Shin; Mee-Ran Kim; Hye-In Yu; Yeon-Joo Kang; Nak-Myeong Kim; Oh-Soon Shin (VTC Spring, 2007)

Cognitive Radio Based Bandwidth Sharing Among Heterogeneous OFDM Access Systems. - Mee-Ran Kim; Eun-Ju Kim; Yeon-Joo Kang; Nak-Myeong Kim (WWIC, 2007)