Research Interests

    Current research interests are in physical layer wireless communications. The major research areas are:
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  • ·  Energy Harvesting
    ·  Cognitive Radio
    ·  D2D Communication
    ·  Resource Allocation
    ·  Interference Management
    ·  Multi-hop Communication
    ·  Applications to 5G Systems and V2V Communications
  • Main research activities have been in the physical layer wireless communications such as energy harvesting, cognitive radio, and D2D communication as well as collaboration with wireless industries. Also he developed a unique Korean text-to-speech synthesis method. His Communications and Coding Theory Laboratory was designated as a National Research Laboratory by Ministry of Science and Technology of Korea in 2001 and a National Leading Research Laboratory by Ministry of Education, Science and Technology of Korea in 2011.